各種閥門[VALVE]的基本介紹
 
閥門是國民經濟建設中使用極為廣泛的一種機械產品。閥門在石油、天然氣、煤炭、冶金、和礦石的開采、提煉加工和管道輸送系統中；閥門在石油化工、化工產品，醫藥，和食品生產系統中；閥門在水電 、火電和核電的電力生產系統中；閥門在城建的給排水、供熱和供氣系統中；閥門在冶金生產系統中；閥門在船舶、車輛、飛機、航天以及各種運動機械的使用流體系統中；閥門在國防生產以及新技術領域里；閥門在農業排灌系統中都有大量的需求。
Valve is a widely used mechanical product in each country's economy. You can find valves commonly used in the following fields like oil, nature gas, coal, metallurgy, mining, refinery, pipe transportation, petrochemical, chemical, pharmacy, food production, power plant, water supply / drainage, heat supply, air supply, marine, vehicle, airplane, spacecraft, military, new tech, irrigation and many other flowing systems.


閥門分自動閥門與驅動閥門。自動閥門（如安全閥、減壓閥、蒸汽疏水閥、止回閥）是靠裝置或管道本身的介質壓力的變化達到啟閉目的的。驅動閥門（閘閥、截止閥、球閥、蝶閥等）是靠驅動裝置（手動、電動、液動、氣動等）驅動控制裝置或管道中介質的壓力、流量和方向。由于介質的壓力、溫度、流量和物理化學性質的不同，對裝置和管道系統的控制要求和使用要求也不同，所以閥門的種類規格非常多。劇不完全統計，我國的閥門產品品種已達四千多個型號，近四萬個規格，閥門在經濟生活中起著非常大的作用。
There are self-driven valves and operated valves. self-driven valves( like safety valve, relief valve, steam trap, check valve ) are functioning by utilizing its mechanical design or the pressure, direction of its flow medium.operated valve( like gate valve, globe valve, ball valve, butterfly valve ) is fuctioning by actuator( manual, electric, hydraulic, pneumatic etc. ) or the pressure , flow direction of its medium. due to the differences of pressure, temperature, flow, and physical-chemical character of its medium , there are different requirements in designing and applying the pipeline system.therefore there are numerous types of valve.according to an unofficial statistics, there are more than four thousand types of valve with approximately forty thousand specifications in China. Obviously, valve is an important element in the social economy.
 
電磁閥[SOLENOID VALVE]
電磁閥是用來控制流體的自動化基礎元件，屬于執行器；并不限于液壓，氣動。電磁閥用于控制液壓流動方向，工廠的機械裝置一般都由液壓鋼控制，所以就會用到電磁閥。而通常意義上，國內電磁閥廠家也并不以液壓電磁閥為主打，一般多生產二位二通氣液用電磁閥。
Solenoid valve is a basic component in automatic flow control, it is actuator but not limited to hydraulic, pneumatic. solenoid valve is mainly used to control the direction of hydraulic flow, machines in plant are usually controled by hydraulic cylinder and thus the solenoid valve is applyed. generally , solenoid valve manufacturers in China not only produce hydraulic solenoid valve, they mainly manufacturer hydraulic-pneumatic combined two way solenoid valve.

電磁閥的工作原理，電磁閥里有密閉的腔，在的不同位置開有通孔，每個孔都通向不同的油管，腔中間是閥，兩面是兩塊電磁鐵，哪面的磁鐵線圈通電閥體就會被吸引到哪邊，通過控制閥體的移動來檔住或漏出不同的排油的孔，而進油孔是常開的，液壓油就會進入不同的排油管，然后通過油的壓力來推動油剛的活塞，活塞又帶動活塞桿，活塞竿帶動機械裝置動。這樣通過控制電磁鐵的電流就控制了機械運動。
The main working theory of solenoid valve is that there is a fully closed cabinet inside the solenoid valve,with holes in different position. each hole is connected with different hose.the valve is centered with two electric magnets aside, when the power is on, the valve will be pulled to that side.though the movement of the valve, the hole which is connected to the hose will be closed / open, the oil inlet is always open, the hydraulic oil flows to different hoses and push the cylinder piston by its pressure.the piston drives the piston stem and then the equipment into movement. by this means, the mechanical movement can be controled by controling the electricity of solenoid valve.
 
球閥[BALL VALVE]
球閥和旋塞閥是同屬一個類型的閥門，只有它的關閉件是個球體，球體繞閥體中心線作旋轉來達到開啟、關閉的一種閥門。
Ball valve and plug valve is the same type of valves only its closure of a spheroid, spheroid around a rotary axis lines to achieve valve body opened and closed a valve

球閥在管路中主要用來做切斷、分配和改變介質的流動方向。球閥是近年來被廣泛采用的一種新型閥門，它具有以下優點：1． 球閥流體阻力小，其阻力系數與同長度的管段相等。2． 球閥結構簡單、體積小、重量輕。3． 球閥緊密可靠，目前球閥的密封面材料廣泛使用塑料、密封性好，在真空系統中也已廣泛使用。4． 球閥操作方便，開閉迅速，從全開到全關只要旋轉90°，便于遠距離的控制。5． 球閥維修方便，球閥結構簡單，密封圈一般都是活動的，拆卸更換都比較方便。6． 球閥在全開或全閉時，球體和閥座的密封面與介質隔離，介質通過時，不會引起閥門密封面的侵蝕。7． 球閥適用范圍廣，通徑從小到幾毫米，大到幾米，從高真空至高壓力都可應用。
Ball valve used to be cut off in the main line, distribution and change the direction of the flow medium. Ball valve is widely used in recent years a new type of valves, it has the following advantages : 1. Ball valve fluid resistance small, and its resistance coefficient with the length of the barrel of equivalent. 2. Ball valve structure simple, small size, light weight. 3. Ball valve closely reliable, current Ball valve sealed surface material widely used plastic, undergo good in a vacuum system also has been widely used. 4. Ball valve easy to operate, the closing rapidly, from open all around, as long as there 90E, facilitate remote control. 5. Ball valve maintenance convenience Ball valve structure simple. seal ring generally activities, the removal of the replacement is more convenient. 6. Ball valve whole or in the open all closed, spheroid and the sealed surface with medium valve seat separation medium through, will not cause the valves sealed surface erosion. 7. Ball valve application scope Link Drive from small to several millimetres, a few meters in from the high pressure can be high vacuum applications.
蝶閥[BUTTERFLY VALVE]
蝶閥是用隨閥桿轉動的圓形蝶板作啟閉件,以實現啟閉動作的閥門.蝶閥主要用截斷閥使用,亦可設計成具有調節或截斷兼調節的功能.目前蝶閥在低壓大中口徑管道上的使用越來越多
Butterfly valve is on/off by the turning of the stem which operate the round butterfly disc. It is mainly used as cut-off valve and also can be designed as regulating or cut-off / regulating combined valve. currently , butterfly is mainly used in the low pressure large size pipelines.

蝶閥的蝶板安裝于管道的直徑方向。在蝶閥閥體圓柱形通道內，圓盤形蝶板繞著軸線旋轉，旋轉角度為0°~90°之間，旋轉到90°時，閥門則牌全開狀態。
butterfly valve panels installed at the Tip of the diameter pipeline direction. In butterfly valve body flight corridors, the disc-shaped Tip boards around rotary axis, rotation angle for 0° -90 meridian east between rotary to +90, the valves are open all licence conditions.

蝶閥結構簡單、體積小、重量輕，只由少數幾個零件組成。而且只需旋轉90°即可快速啟閉，操作簡單，同時該閥門具有良好的流體控制特性。蝶閥處于完全開啟位置時，蝶板厚度是介質流經閥體時唯一的阻力，因此通過該閥門所產生的壓力降很小，故具有較好的流量控制特性。蝶閥有彈密封和金屬的密封兩種密封型式。彈性密封閥門，密封圈可以鑲嵌在閥體上或附在蝶板周邊。
butterfly valve structure simple, small size, light weight, only by a few parts. But it can be rapidly open and close-90E, simple to operate, while the fluid control valves have good character. butterfly valve a fully open position, Tip board thickness is only when the medium flows through body resistance, the pressure generated by the air valves small, it has a better flow control characteristics. butterfly valve a metal shells sealed and the two sealed sealed patterns. Flexible sealed valves, seal ring can embed in body or peripheral boards to Tip.
截止閥[GLOBE VALVE]
截止閥是一種常用的截斷閥,主要用來接通或截斷管路中的介質,一般不用于調節流量．截止閥適用壓力、溫度范圍很大,但一般用于中、小口徑的管道．
globe valve as one of the cut-off valve is a common valves mainly used to connect or disconnect the line of medium, generally not for regulating flows. globe valves apply pressure, high temperature range, but are generally used for medium and small-calibre pipeline

截止閥的主要標準 GB12233-89《通用閥門 鐵制截止閥與升降式止回閥》 GB12235-89《通用閥門 法蘭連接鋼制截止閥與升降式止回閥》 JB/T53174-94《截止閥 產品質量分等》 JB/T53165-92《高壓平衡截止閥 產品質量分等》 GB/T587-93《船用法蘭青銅截止閥》 GB/T590-93《船用法蘭鑄鐵截止閥》 GB8464-87《內螺紋連接閘閥、截止閥、球閥、止回閥 通用技術條件》 GB8465.2-87《內螺紋連接閘閥、截止閥、球閥、止回閥 基本尺寸 鐵制截止閥》
The valves of the main criteria GB12233-89< a valve closing valves with metal-style check valve "GB12235-89< a valve flange steel closing valves connected with the elevation of check valve " JB/T53174-94< closing valves product quality grading "JB/T53165-92< closing valves - balanced product quality grading" GB/T587-93< bunker flange closing valves bronze "cast iron flange GB/T590-93< bunker closing valves" GB8464-87< of thread connecting valve, The valves, ball valve, chekc valve overall technical conditions "GB8465.2-87< of thread connecting valve, closing valves, ball valve, check valve basic size metal closing valves"
 
控制閥[CONTROL VALVE]
控制閥又稱調節閥，是執行器的主要類型，通過接受調節控制單元輸出的控制信號，借助動力操作去改變流體流量?？刂崎y一般由執行機構和閥門組成。如果按其所配執行機構使用的動力，控制閥可以分為氣動、電動、液動三種，即以壓縮空氣為動力源的氣動調節閥，以電為動力源的電動控制閥，以液體介質(如油等)壓力為動力的電液動控制閥，另外，按其功能和特性分，還有電磁閥、電子式、智能式、現場總線型控制閥等。
Control valves regulating valves as is the implementation of the main types of vehicles, by accepting conditioning control module export control signals from engine operation to change fluid flow. Control valves and valve general, the executing agency. If by their ticket enforcement agencies use the power, control valves can be divided into pneumatic, electrical, fluid movement three, namely to compressed air to power sources pneumatic - valve to call for the engine electric control valves for the liquid medium (such as oil) pressure-driven electricity fluid moving control valves, and their functions and characteristics hours are electromagnetic valves, electronic style, smart, Floor bus-control valves.

控制閥的閥體類型選擇
控制閥的閥體種類很多，常用的有直通單座、直通雙座、角形、隔膜、小流量、三通、偏心旋轉、蝶形、套筒式、球形等。在具體選擇時，可做如下考慮：(1)閥芯形狀結構，主要根據所選擇的流量特性和不平衡力等因素考慮。(2)耐磨損性，當流體介質是含有高濃度磨損性顆粒的懸浮液時，閥的內部材料要堅硬。(3)耐腐蝕，由于介質具有腐蝕性，盡量選擇結構簡單閥門。(4)介質的溫度、壓力，當介質的溫度、壓力高且變化大時，應選用閥芯和閥座的材料受溫度、壓力變化小的閥門。(5) 防止閃蒸和空化，閃蒸和空化只產生在液體介質。在實際生產過程中，閃蒸和空化會形成振動和噪聲，縮短閥門的使用壽命，因此在選擇控制閥時應防止閥門產生閃蒸和空化。
valve body types of control valves choice valve body many types of control devices, commonly used by direct-Block, through engine, angle type, divide, and small flows, the three links, eccentricity rotary, butterfly type, sleeve style, spherical. In specific choices, do the following considerations : (1) disc shape of the structure, mainly based on the choice of flow characteristics and consider factors such as power imbalances. (2) The presence of worn when fluid medium is the wear and tear of high concentrations of suspended particulate fluids, valves materials to the internal hard. (3) corrosion resistance, as a corrosive medium, to choose structure simple valves. (4) medium temperature, pressure, when the medium temperature, high pressure and great change, and should be chosen disc valve seat materials by temperature, pressure changes small valves. (5) prevent instant steam and air-based, space-based instant steam and only in a liquid medium. In the actual production process, Shanzheng and will form a vibration of air and noise, shorten the useful life of valves, control valves in the choice should have instant steam and air-based prevention valves.
換向閥[CHANGE VALVE]
換向閥主要包括電磁換向閥，手動換向閥，電液換向閥，四通換向閥，多路換向閥，氣控換向閥，五聯多路換向閥，二位二通換向閥等。
direction change valve include electromagnetic direction change valve, manual direction change valve, call liquid direction change valve, four way direction change valve, multiplexed direction change valve, gas control direction change valve, five of multiplexed direction change valve, two spaces, such as two-direction change valve

手動換向閥是用手動杠桿操縱閥芯移位的方向控制閥。在液壓系統中，它可控制油流方向，以改變執行元件的運動方向。 手動換向閥的滑閥換向定位方式有鋼球定位式和彈簧復位式二種結構。鋼球定位式是當操縱手柄外力取消后，閥芯依靠鋼球定位保持在換向位置。彈簧復位式是當操縱手柄外力取消后，彈簧使閥芯自動回復到初始位置。電磁換向閥是通過電氣信號來改變液流方向的控制閥門，它可用來實現液壓系統的卸載，順序動作及油路換向。電磁換向閥主要用于工程機械、礦山機械、起重運輸機械以及其它機械的液壓系統中。
Manual is a manual lever manipulation direction change valve disc killer direction control valves. In the hydraulic system, it can control the oil flow direction, the implementation of components of the Movement to change direction. Manual direction change valve the slide-valve for a way to the positioning of spaces steel ball positioning-and-two types of spring-loaded structure. steel ball positioning of manipulation handle external forces when lifting, positioning steel ball disc rely on to maintain in-place. When the manipulation of spaces is a spring-loaded handle external forces cancellation, disc spring-loaded to automatically revert to the initial position. direction change valve electromagnetic signals through electrical control valves to change the direction of liquid flow, it can be used to achieve hydraulic unloading system, the order to move and change oil flow. Electromagnetic direction change valve mainly for engineering machinery, mining machinery, transport machinery and other mechanical lifting hydraulic system
單向閥[SINGLE CHECK VALVE]
單向閥又稱止回閥或逆止閥。用于液壓系統中防止油流反向流動。
Check valves or as a one-way valve. For the hydraulic system to prevent reverse flow of oil flow.

單向閥有直通式和直角式兩種。直通式單向閥用螺紋連接安裝在管路上。直角式單向閥有螺紋連接、板式連接和法蘭連接三種形式。液控單向閥也稱閉鎖閥或保壓閥，它與單向閥相同，用以防止油液反向流動。但在液壓回路中需要油流反向流動時又可利用控制油壓，打開單向閥，使油流在兩個方向都可流動。液控單向閥采用錐形閥芯，因此密封性能好。在要求封閉油路時，可用此閥作為油路的單向鎖緊而起保壓作用。液控單向閥控制油的泄漏方式有內泄式和外泄式二種。在油流反向出口無背壓的油路中可用內泄式；否則需用外泄式，以降低控制油壓力。
A straight-through one-way valves and rectangular Type two. Straight-through one-way valves installed in a connecting thread of the pipeline. Rectangular style is a one-way valve connecting thread, flange type connectivity and connecting three forms. Fluid control valves also known as one-way pressure valve closed valves or insurance, with the same one-way valves to prevent reverse flow of oil. However, the need for oil flow in hydraulic circuit reverse flows can use hydraulic control, opening a one-way valve, so that the flow of oil can flow in both directions. Fluid control one-way valve used cone disc, sealed a good performance. oil flow closed in demand, the availability of one-way valves as oil flow park sky Paul pressure. Fluid leakage control one-way valves control the manner of oil and oil-leaking Type II species. No reverse flow of oil exports in the oil flow available within inflow Type; Otherwise required outflow type, the control of oil in order to reduce pressure.
電動閥[ELECTRIC MOTOR CONTROL VALVE]
電動閥是以電動機作為啟閉閥門的動力，用于比較大型的閥門，高級的電動閥，可以用于工藝上的流量控制。
Electric valves open and close valves on the electric motors as a driving force for the larger valves, electric valves, the processes can be used to control the flow.

電動閥具備裝配容易、故障率低以及符合業界自動化需求的優點，是業者較劃算的選擇。因為使用一般傳統氣動閥，免不了要有配管、電磁閥及壓縮機等才能匹配，而電動閥是以馬達驅動，安裝簡易省事，且電動閥安裝配合工廠原有的自控線路即可，可節省其他成本支出。此外，以馬達驅動方式開閉較平順，無瞬間沖力過大的缺點，故障率可大幅降低,不少人都認為電動閥貴，使用成本高，其實不然，如果以整體計算，傳統閥要加上許多配件及管路安裝，價格并未占優勢，反而要承擔較多的保養費.所以電動閥的前景是比較廣闊的。
Electric valves fitted with easy, low failure rate in the industry and the advantages of automation needs is more economical choice operators. Because of the use of general traditional pneumatic valves, inevitably a ticket pipes, and electromagnetic valves, compressors can match, and electrical devices are motor-driven, easy to install, and the installation of electrical devices with the original robotic factory line will be able to reduce other costs. In addition to motor-driven approach to turn more smoothly, without an excessive momentum shortcomings, failures can be substantially reduced rate, many people believe that your electric valves, the use of high cost, but in fact it is not, if a holistic basis, and many accessories to traditional valves and the installation of pipelines, the price is not dominant, Instead, they will assume more maintenance. Therefore, the prospects for electrical devices are relatively broad.
 
疏水閥[STEAM TRAP VALVE]
疏水閥在蒸汽加熱系統中起到阻汽排水作用，選擇合適的疏水閥，可使蒸汽加熱設備達到最高工作效率。要想達到最理想的效果，就要對各種類型疏水閥的工作性能、特點進行全面的了解。疏水閥的品種很多，各有不同的性能。選用疏水閥時，首先應選其特性能滿足蒸汽加熱設備的最佳運行，然后才考慮其他客觀條件，這樣選擇你所需要的疏水閥才是正確和有效的。
steam traps steam heating system in a waste gas drainage role in the selection of suitable steam traps allow steam heating equipment for the highest efficiency. To achieve optimal results, it is necessary for all types steam traps work performance and characteristics of a comprehensive understanding. steam traps many varieties, each with different performance. steam traps choice, should first elect their identity can best meet the steam heating equipment operation before considering other objective conditions, such choices you need steam traps is correct and effective.

疏水閥要能“識別”蒸汽和凝結水，才能起到阻汽排水作用?！白R別” 蒸汽和凝結水基于三個原理：密度差、溫度差和相變。于是就根據三個原理制造出三種類型的疏水閥：分類為機械型、熱靜力型、熱動力型。1.在生產工藝的換熱設備，烘干室，快速熱交換器，蒸餾設備等需要快速升溫，不允許存有凝結水的生產加熱設備，應該選用機械型疏水閥。2.在蒸汽管道，伴熱管線、小型加熱設備，采暖設備，溫度要求不高的用汽設備，應該選用熱靜力型疏水閥。3.在高溫高壓過熱蒸汽管線和設備上，應該選用過熱蒸汽專用疏水閥。
steam traps to be "identified" steam and condensed water can play a role in blocking air drainage. "identification" and the condensed steam water based on three principles : the poor density, and temperature difference of change. So on the basis of three principles of creating three types of steam traps : classified as mechanical type, thermal static type, thermal power-based. 1. In the heat production equipment, drying room, rapid heat exchangers, distillation equipment needs rapid warming, not a condensed water heating equipment production should be chosen mechanical type steam traps. 2. In steam pipes, coupled heat pipelines, small heating equipment, heating equipment, air temperatures do not ask for the use of equipment, it should be the choice of hot static type steam traps. 3. Overheating in high-temperature high-pressure steam pipelines and equipment, should choose an exclusive steam traps steam.
 
比例閥[PROPORTIONAL VALVE]
比例閥是一種輸出量與輸入信號成比例的液壓閥。它可以按給定的輸入電信號連續地按比例地控制液流的壓力、流量和方向。比例閥可以按設定的比例同時抽取幾種溶液進行混合的閥門。液相色譜中的低壓梯度洗脫裝置就是在高壓泵之前加上一個比例閥，在常壓下將幾種溶劑按設定的比例在線混合之后，再泵入色譜體系。
Proportional valves is a signal proportional to import and export volume of the hydraulic valves. It can be given for the importation of electrical signal proportional to the control Yeliu pressure, flow and direction. Proportional valve can be set at the same time the proportion of the valves from several solution mixed. The liquid phase is coupled device is the low voltage gradient itself in a high-pressure pumps add ratio valves in the atmosphere will be set according to the proportion of online several solvents mixed, then pump into the gas system.

比例閥能實現自動控制、遠程控制和程序控制。比例閥能把電的快速靈活等優點與液壓傳動功率大等特點結合起來。比例閥能連續地、按比例地控制執行元件的力、速度和方向，并能防止壓力或速度變化及換向時的沖擊現象簡化了系統，減少了元件的使用量。比例閥制造簡便，價格比伺服閥低廉，但比普通液壓閥高。由于在輸入信號與比例閥之間需設置直流比例放大器，相應增加了投資費用。比例閥使用條件、保養和維護與普通液壓閥相同，抗污染性能好。比例閥具有優良的靜態性能和適當的動態性能，動態性能雖比伺服閥低，但已經可以滿足一般工業控制的要求。比例閥效率比伺服閥高。主要用于開環系統，也可組成閉環系統.
Proportional valves to achieve automatic control, remote control and programmed control. Proportional valves can call the rapid and flexible, and other advantages such as large hydraulic power transmission characteristics together. Proportional valves to continuous, proportional to the implementation of components of the control, speed and direction, pressure and can prevent or to the exchange rate changes and the impact of the phenomenon of simplified systems to reduce the usage of components. Proportional valves manufacture simple, low prices than servo valves, hydraulic valves than ordinary high. Because of signal proportional valves with the ratio between the need to install DC amplifier, a corresponding increase in investment costs. Proportional valves conditions of use, maintenance and preservation of hydraulic valves with the same ordinary, extraordinary good performance. Proportional valves excellent static performance and appropriate dynamic performance, dynamic performance is low compared with servo valves, but had to meet general industrial control requirements. Proportional valves than servo valves high efficiency. For the main part of the system can be integral loop system.
 
隔膜閥[DIAPHRAGM VALVE]
隔膜閥是一種特殊形式的截斷閥，其啟閉件是一塊用軟質材料制成的隔膜，它將閥體內腔與閥蓋內腔隔開。隔膜閥實際上不過是“鉗夾”的閥，一個彈性的，可擾的膜片，用螺椿連接在壓縮件上，壓縮件是由閥桿所操作而上下移動，當壓縮件上升，膜片就高舉，而造成通路，當壓縮件下降，膜片就壓在閥體堰上（假使為堰式閥）或壓在輪廓的底部（假使為直通式），隔膜閥適用于開關及節流之用。
diaphragm valve is a special form of cut-off valves, which open and close this is a piece of soft quality materials produced by the divide, it separate the inside body and inlet inside the cover. diaphragm valve is really only "jaw" valves, a flexible, three of diaphragm by Lo underground link in compressed pieces, the compression of which is operated by stem next movement when compressed pieces rise diaphragm on hold, resulting in access, when compressed pieces falling, diaphragm pressure on the weir in valve body (even for the weir-type valves) or pressure at the bottom contours (even for straight-through processing), diaphragm valve applicable to switches and reducing use.
隔膜閥本身結構設計的原因特適合于超純介質或污染嚴重，十分粘稠的液體、氣體、腐蝕性或惰性介質。與控制設備相結合時，隔膜閥更能取代其它傳統控制系統，尤其是適用于固體和易污染的惰性介質。產品主要應用于生物制藥、食品、行業; 以及電力、化工、電鍍、等行業的工業水處理中, 還被應用于半導體晶圓的生產中,隔膜閥是特別適用于運送有腐蝕性，有粘性的流體，例如泥漿、食品、藥品、織維性粘合液等，因管線中，隔膜閥的操作機構，是不暴露在運送流體中，故不具污染性，也不需要填料，閥桿填料部也不可能會泄漏。
diaphragm valve own special reasons for the structural design suitable for super pure medium or severe pollution very ropy liquids, gases, corrosive or inert medium. Combined with control equipment, diaphragm valve replace other more traditional control systems, especially vulnerable pollution applicable to solid inert medium. Biological products are mainly used in the pharmaceutical, food, industry; And the power, chemical, electroplating, and industrial water treatment industries, was also applied to the semiconductor wafer production, diaphragm valve particularly applicable to the delivery of a corrosive, became the fluid, such as mud, food, medicines, woven together liquid-dimensional, because pipelines, diaphragm valve operating agencies, it is not exposed to the delivery of fluid, So no polluting, and do not need to fill, the Department can not fill stem will leak.
 
氣閥[GAS VALVE]
從氣閥工作原理來看，氣閥工作性能將直接影響壓縮機氣缸的工作，因此，對氣閥有如下要求：阻力損失小。氣閥阻力損失大小與氣流的閥隙速度及彈簧力大小有關。氣速越高，能量損失越大；彈簧力過大，阻力損失也大，其大小按氣閥運動規律的合理性準則設計確定。氣閥關閉及時、迅速，關閉時不漏氣，以提高機器的效率，延長使用期。壽命長、工作可靠。限制氣閥壽命的主要因素是閥片及彈簧質量，一般對長期連續運轉的壓縮機，希望壽命達8000小時以上；對移動式、短期或間歇運轉的壓縮機，要求可稍低些。
From the air valve operating principles of view, air valve performance will directly affect the work of compressor tanks, air valve for the following requirements : resistance losses small. Air valve size and airflow resistance losses of valves always speed and the size of the spring-loaded edge. Gas higher speed, the greater the energy losses; Spring-loaded edge too large, the loss is great resistance, the size of the air valve movement design guidelines to determine the reasonableness of the law. Air valve closed timely, rapid, not leak closed to improve the efficiency of machines and extended use period. Long life, work reliable. Life is the main factor restricting air valve and spring-loaded valves quality, the general long-term continuous operation of the compressors to life 80 hours; For mobile, short-term or intermittent operation of compressors, may require slightly more.

氣閥是往復活塞式壓縮機中的重要部件，也是易損壞的部件之一。它的好壞直接影響壓縮機的排氣量、功率消耗及運轉的可靠性，目前壓縮機正向高速方向發展，而限制轉速提高的關鍵問題之一就是氣閥?；钊綁嚎s機一般都采用“自動閥”，就是氣閥的開啟與關閉是依靠閥片兩邊的壓力差實現的，沒有其它的驅動機構。
Air valve and piston-type compressors are to the important components is one of the components easily damaged. It will have a direct impact on the displacement compressors, power consumption and reliability of operation, the current compressor is fast direction, and rotational speed limit is one of the key issues in improving air valve. Piston-type compressors typically use the "automatic valve" that the air valve is opened and closed valves on the pressure on both sides to achieve poor, and there is no other drive.
 
膨脹閥[EXPANSION VALVE]
膨脹閥在系統中所起的作用是１：節流霧化液態制冷劑２：根據原設計系統過冷度和制冷工況準確控制流入蒸發器的制冷劑的流量．３：停機時快速平衡系統高低壓力．所有的膨脹閥在設計與某車相配套時基本都要考慮到在膨脹閥失控條件下對壓縮機的傷害程度評價
The role of expansion valves in the system is 1: cut usually liquid coolant 2 : Under the original design extremely cold and refrigeration systems for the situation accurately control the flow evaporator Coolant flow. 3 : parking, rapid balance system or pressure. All valves in the design and expansion of facilities, a machine must take into account the expansion of the basic conditions for the compressor valves control the degree of injury assessment

因為膨脹閥是屬于超高精密加工的零件，在工廠對其內部調整機構零件的加工都在恒溫狀態下完成，其中的感溫包的氣體充填更是要求嚴格一致不允許一絲泄漏，在完成裝配的膨脹閥還要經過嚴格的測試和耐疲勞老化抽檢，膨脹閥的構造：1：感知溫度的感溫包；2：感溫氣體或者液體充填膨脹波紋腔；3：球型閥座；4球型閥；5：彈簧；6：過熱度調整螺絲墊片和螺絲；7：內部和外部（H型）密封件；8：推力桿和波紋腔墊片；9：閥體；10：毛細管等等。感溫包：是必須妥善接觸固定在蒸發器的出口管道上，感知蒸發器實時回氣溫度的部件，它將充填物質的熱脹冷縮壓力通過相通的毛細管提供給膨脹波紋箱；膨脹波紋箱依據壓力的變化推動推力桿結合過熱度調整螺絲和彈簧的阻力來調整球型閥的開度，實現制冷量的精確調整。當回氣管道溫度升高，感溫包內的物質膨脹，壓力升高，膨脹波紋箱內壓力也升高，波紋腔膨脹推動推力桿克服彈簧阻力，球型閥開度變大；當回氣管道溫度減低，感溫包內的物質膨脹，壓力降低，膨脹波紋箱內壓力也降低，彈簧阻力推動推力桿壓縮波紋腔，球型閥開度變??；如此不斷的進行推拉調整平衡，只要制冷循環繼續下去。
Because expansion valves are high precision processing components,factory in its internal adjustment of the body parts are processed in a state of complete thermostatic, the temperature of the gas filling kits are demanding more consistent not detect leaks, in the completion of the expansion valve assembly also undergo strict testing and fatigue resistance aging sampling, the construction expansion valves : 1 : Indeed temperature temperature kits ;2 : temperature gas or liquid filled with the expansion corrugated ;3 : spherical valve seat ;4 spherical valves ;5 : spring ;6 : overheating degrees adjustment screw spacer and screw ;7 : internal and external (H-type) sealed pieces ;8 : thrust poles and corrugated of spacer ;9 : Fati ;10 : capillary, and so on. Temperature kits : contact must be properly fixed in the evaporator export pipelines, real-time communication evaporator components to temperature degrees, the material will be filled through interlinked capillary pressure due to the expansion of corrugated boxes; swelling corrugated boxes on the pressure for change in the thrust pole with an adjustment screw and spring-loaded ball-type valves to adjust the resistance of the degrees of refrigeration volume precision adjustments. When the temperature to gas pipelines, temperature packets of material expansion, the pressure rise, inflation pressures are rising corrugated box, corrugated promote the expansion thrust to overcome the spring-loaded pole resistance, the ball-type valve opened for big change; When the gas pipeline to reduce the temperature, temperature of the material swelling up, the pressure lowered inflation corrugated box pressure also reduced, spring-loaded pole compressed corrugated of resistance to thrust, spherical valves open for smaller; This constant push and pull adjustment for the balance, as long as refrigeration cycle continue.
 
平衡閥[BALANCE VALVE]
從調節基本原理上看，平衡閥實際上就是一種有開度指示的手動調節閥。在平衡閥的上游、下游端各裝一個測壓孔，用來測量流體通過閥門的壓降。使用時，測得閥門壓降和讀出開度，即可算得通過閥門的流量。其作用相當于調節閥和等效孔板流量儀的組合，使各個支路的流量分配達到要求。當總循環泵變速運行時，各個支路的流量分配比例保持不變。
From the basic principles of regulation viewpoint balancing valve is actually an instruction manual for the regulation valves. In balancing valve upstream and downstream ends of the tube with a hole, used to measure the fluid through valves pressure reduction. Use, detected valves pressure reduction and read out the degrees, can be considered by the flow valves. Its role to regulating valves and flow-combination hole equivalent to the slip road to the flow distribution requirements. When the total cycle pump gear shift operation, the flow of the slip road ratio unchanged.

動態平衡閥的工作原理： 通過改變平衡閥的閥芯的過流面積來適應閥門前后的變化，從而達到控制流量的目的。動態平衡閥是一個局部阻力可以變化的節流元件.當平衡閥前后壓差小于最小啟動壓差是彈簧未被壓縮，流通面積最大。當平衡閥前后壓差超越工作范圍是，閥膽完全壓縮彈簧，水流只從閥膽兩邊的圓孔流過，此時閥膽變成了固定的調節器，流量與壓差成正比，隨壓差的增大而增大.平衡閥具有在一定的壓力范圍內限制空調末端設備的最大流量、自動恒定流量的特點，在大工型、復雜、空調采暖負荷不恒定的工程中，簡化了系統調試過成，并縮短了調試時間。
balancing valve dynamics operating principles : through changes in the flow Disc balancing valve the area around the valves to adjust to the change, thus achieving the purpose of flow control. Is a dynamic balancing valve local resistance to change spending components. When balancing valve and differential pressures are smaller than the smallest start differential pressures were not compressed spring-loaded, the largest circulation area. When balancing valve and differential pressures beyond the scope of work is completely compressed spring-loaded valves guts, guts flow only from valves on both sides of the square shed, when valves guts into a fixed regulator, the flow and differential pressures in proportion with the increase and differential pressures increase. balancing valve have some great pressure within the air-conditioning equipment to limit the maximum flow, automatic constant flow characteristics, in the large-type, complex, air conditioning load is not constant heating works, a simplification of the system into debugging, and shorten the debugging time.
 
溢流閥[OVERFLOW VALVE]
溢流閥按結構形式分為直動型和先導型，它旁接在液壓泵的出口保證系統壓力恒定或限制其最高壓力，有時也旁接在執行元件的進口，對執行元件其安全保護作用。直動型溢流閥，主要有閥芯、閥體、彈簧、上蓋、調節桿、調節螺母等零件組成。
Relief valves in the form of the structure and type of moving into straight-pilot, and it's up in Hydraulic Pump export guarantee system, or limitation of the maximum pressure constant pressure, sometimes adjacent to import components in the implementation of the components of its security role. Straight moving type relief valves, mainly valve disc, valve body,, spring-loaded, roof, regulation pole, conditioning nut, and other integral parts.

先導型溢流閥有先導閥和主閥兩部分組成,先導閥為一錐閥，實際上是一個小流量的直動型溢流閥.隨著溢流閥的進口壓力增大，作用在先導閥芯上的液壓力Fx隨之增大，當Fx大于等于Pt2時，先導閥閥口開啟，溢流閥的進口壓力油經阻尼孔、先導閥閥口溢流到溢流閥的出口，然后回油箱。溢流閥進口壓力油經主閥閥口溢流回油箱。主閥閥口開度一定時，先導閥閥芯和主閥閥芯分別處于受力平衡，閥口滿足壓力流量方程，主閥進口壓力為一確定值。
Pilot valves and pilot-type relief valves are the main valves of two parts, pilot valves for cone valve, the flow is a small direct action type relief valves. With import pressure relief valves, pilot vavel disc role in the fluid pressure Fx attendant increase, when more than equal to Fx Pt2, pilot valves valves mouth opened, the pressure relief valves to import oil by damping hole, Pilot valves valves mouth overflow relief valves to export, and then back to the fuel tank. Imported oil pressure relief valves to the main valve valves mouth overflow back containers. Main valves valves mouth open for some time, pilot valves and the valve Faxin Faxin respectively in the balance of power, pressure flow valves meet the equation mouth, and the main valve to the pressure of a determined value of imports.
 
調壓閥[PRESSURE GOVERNOR VALVE]
調壓閥是由調壓閥、油水分離器及單向閥等構成的一個組合閥總成。
Pressure governor valve is composed by governing valve, oil, water separation devices and a combination of one-way valves, etc.

調壓閥的原理是利用了彈簧力與壓力相平衡的原理，當彈簧的壓力小于氣壓的時候閥關閉，當壓力大于彈簧的彈力時候橡膠調壓膜片下方的壓縮空氣對膜片的作用力，推動膜片向上拱曲離開閥座而使空氣流入氣腔，此時卸荷活塞在氣壓作用下移動，將排放閥門推離閥座，于是由空氣壓縮機充入氣腔的空氣便通過排放閥和排氣口排入大氣空氣壓縮機空轉。調壓閥的作用是限定系統的最高壓力0.75-0.80兆帕(7.5-8.0巴)。在可靠工作的前提下確保系統安全。調壓閥種類眾多用途廣泛,主要用于交通,及工業民用領域.
Pressure governor valve is the use of a spring-loaded power and pressure balance theory, when the spring-loaded pressure less than atmospheric pressure and the valves closed when the pressure is greater than the spring-loaded rubber tubing stretch when the bottom of compressed air diaphragm, diaphragm the effort to promote diaphragm upward and left vavle seat blow the air flow of gas, this would piston shirking role in the pressure mobile, Selection will be emissions from valve seat, air compressors made by the then air into the gas valves and exhaust emissions is through the mouth into atmospheric air compressors idling. pressure governor valve's role is limited to the maximum system pressure 0.75-0.80 trillion Pago (7.5-8.0 bar). In the context of ensuring reliable security
 
伺服閥[SERVO VALVE]
伺服閥主要分為力反饋式電液伺服閥和位置反饋式伺服閥.
Servo valves consists of feedback - electric-hydraulic servo valve and position feedback servo valves.

電液伺服閥的任務,是把電氣轉換為液壓量去控制油動機. 伺服閥是由一個力矩馬達,兩級液壓放大和機械反饋系統.力矩馬達是由一個兩側繞有線圈的永久磁鐵組成,當伺服閥兩側的線圈產生不平衡電流時,由于電磁力的作用,使銜鐵及擋板發生偏轉,伺服閥把電量轉成換成位移量,第一放大是由不1個雙噴嘴和平共1 個擋板組成,此擋板固定在銜鐵的中點,并在2個噴嘴之間穿過,使伺服閥在噴嘴的端部與擋板之間形成2個可變的節流孔,由擋板和噴嘴控制的油壓通往第二級滑閥兩兩端面上.伺服閥第二級滑閥是四通滑閥結構上,并嵌入滑閥中心的1個槽內,當銜鐵處于中間位置時,擋板對流過兩個噴嘴的油流的節 作用相同,滑閥的兩端無差壓
electric-hydraulic servo valve's task is to the volume of electrical switch to control oil for hydraulic motivated. Servo valves is a torque motor, both hydraulic and mechanical enlarged feedback system. torque motors on both sides by a permanent magnet around a coil formed when servo valves on both sides of the coil produce an electric currency, as a result of electromagnetic power, and the back plate of the armature deflection, servo valves to be converted into electricity displacement volume, the first enlarged by one double nozzles peace were one back plate composition of the back plate is fixed at the mid-point of armature, and in between the two nozzles through to servo valves at the end of nozzles and a back plate between two variable costs Kong. by the back plate and nozzles controlled hydraulic slide-valve leading to the second level at two levels. servo valve secondary slide-valve is spun slide-valve structure, and embedded slide-valve inside the center one, when armature in the middle position, the back plate convection flow of
 
節流閥[THROTTLE VALVE]
節流閥又稱膨脹閥、調節閥，他是制冷系統不可缺少的四大重要設備之一。節流閥的作用是對冷凝器輸出的高壓液態制冷劑進行節流降壓和調節流量。制冷劑液體經過節流閥節流降壓后成為低溫低壓的汽液混合流體，經過氨液分離器分離掉無效的蒸汽后供往蒸發器中蒸發吸熱。節流閥的型式很多，結構也各異，但是他們的基本原理均是使高壓的液態制冷劑被迫通過一個適應系統流量的“小孔”，使其通過小孔時需要克服很大的流動阻力，因而使壓力發生聚變，與此同時，一部分液體化為蒸汽，并從其本身吸取汽化潛熱，因而使膨脹后的汽液混合流體變成低溫低壓狀態。節流閥的閥芯為針形錐體或帶缺口的錐體，閥桿的螺紋為細牙，當旋轉手輪時，閥芯移動的距離不大，液體通過的面積也就很小，此時可以造成很大的局部阻力，高壓液體通過小孔時消耗能量而降壓。節流閥開啟度的大小是根據蒸發器熱負荷的變化而調定通常其開啟度為手輪的八分之一至四分之一周，不能超過一周，否則開啟度過大，即失去節流作用。
throttle valve as expansion valves, regulating valves, it is refrigeration system indispensable four one important equipment. throttle valve role is the export of high-pressure liquid coolant condensers to reduce and regulate the flow of relief. Coolant liquid after throttle valve expenditure of relief after a low-temperature low-voltage gas liquid mixed fluid, after separation into ammonia liquid separation devices for invalid after steam vaporizer, to evaporation endotherm. throttle valve many patterns, structures also vary, but their basic principles are that the high-pressure liquid coolant forced to adapt to the system through a flow "puncture wounds on the" make it through the puncture wounds on the need to overcome the considerable resistance movement, resulting in fusion pressure, and at the same time, some liquid into steam, and from its own lessons vaporization latent heat, thereby expanding the gas into liquid cryogenic fluid mixed low voltage state. throttle valve the Faxin for needle-shaped cone or belt gaps Cone, the thread for Fagan small teeth, when round-hand, the distance is Faxin mobile, liquid through the area is small, this can cause considerable local resistance, high pressure liquid through the puncture wounds on the consumption of energy and relief. throttle valve opened degrees is based on the size of the evaporator heat load changes that will be open for its usual hand for the eighth round to fourth week and not more than one week, otherwise spend big opening, lost spending.
 
液壓閥[HYDRAULIC VALVE]
液壓閥的品種繁多，除了不同品種、規格的通用閥外，還有許多專用閥和復合閥。就液壓閥的基本類型來說，可按以下幾種方式進行分類：按功能分類,1．壓力控制閥用來控制液壓系統中液流壓力的液壓閥。2．流量控制閥用來控制液壓系統中液流流量的液壓閥。3．方向控制閥用來控制液壓系統中液流的流動方向的液壓閥。除了上述具有單一功能的通用液壓閥以外，還有一些專用液壓閥和復合液壓閥具有兩種以上的功能，例如既能控制方向又能控制壓力，或既能控制方向又能控制流量，等等。
Hydraulic valves of a wide variety, in addition to different varieties, specifications generic valves, there are many specialized valves and complex devices. Hydraulic valves on the basic types, classified according to the following manner : by functional classification 1. Hydraulic pressure control valves used to control the hydraulic pressure system flow valves. 2. Flow control valve hydraulic system used to control the flow of hydraulic valves Ye Liu. 3. Hydraulic control valves used to control the direction of the system flow mobile hydraulic valves direction. In addition to the overall function of a single hydraulic valves, hydraulic valves and a number of specialized hydraulic valves with more complex functions, such as pressure control can only control the direction or control which can control the direction of flow, and so on.
按控制方式分類1．定值或開關控制閥這類液壓閥借助于通斷型電磁鐵或手調機構等方式，將閥芯位置或閥芯上的彈簧設定在某一工作狀態，從而使液流的壓力、流量或流向保持某一定值。這種液壓閥屬于最常見的普通液壓閥。2．比例控制閥這類閥的輸出量（流量、壓力）可以按照輸入信號的變化規律連續成比例地進行調節。它們常采用比例電磁鐵將輸入的電信號轉換成力或閥的機械位移量，進行控制。也可以采用其它形式的電氣輸入控制器件。由于比例閥結構簡單、工作可靠、價格較低，性能較普通的定值控制閥有明顯提高，并且可以通過電信號進行連續控制，因此在許多場合獲得了廣泛應用。
Controlled manner by classification 1. Constant control valves or switches such hydraulic valves through hands-off type of electro-magnet or transfer institutions, will valve disc location of the spring-loaded or valve disc set in a working condition so that flow pressure, or flow to maintain a certain flow value. This hydraulic valves are the most common ordinary hydraulic valves. 2. Proportional control valves such devices export volume (flow, pressure) can be imported in accordance with the law of change in the continuous signal proportional to regulate. They often use imported electrical signal proportional electro-magnet will be converted into mechanical power or valves displacement volume control. Can also use other forms of electrical control devices. Because of valves structure simple, reliable work, the lower the price, performance than ordinary constant control valves have markedly improved, and through continuous electrical signal control, and therefore, on many occasions, gained widespread application.
 
防火閥[FIRE SAFE VALVE]
防火閥是指安裝在通風、空調系統的送、回風管路上，平時呈開啟狀態，火災時當管道內氣體溫度達到70℃時自動關閉，在一定時間內能滿足耐火穩定性和耐火完整性要求，起隔煙阻火作用的閥門。排煙防火閥是指安裝在排煙系統管道上，平時呈開啟狀態，火災時當管道內氣體溫度達到280℃時自動關閉，在一定時間內能滿足耐火穩定性和耐火完整性要求。起隔煙阻火作用的閥門。
Fire proof valve refers installed in the ventilation, air-conditioning systems to send, and the road back to the wind, opened in a state of fire when the temperature reached 70 degrees, the gas automatically closed in a certain period of time to meet the fire resistance requirements of the stability and integrity of fire resistance, a possible role of the fire fight valves. Smoke extraction fire fight valve refers smoke extraction system installed in the pipeline, in an open state of the gas pipeline fires when the temperature reached 280 degrees automatically closed in a certain period of time to meet the fire resistance stability and fire resistance integrity. A possible role valves smoke proof.
防火閥有兩種，70度和280度，70度用于新風機，當溫度到達70度時關閉新風機，證明已經著火了，再別進風了。當溫度達到280度時，關閉排煙風機，要不然火會順著風道燒到別的地方。 一、防火閥從溫度劃分：有70攝氏度和280攝氏度的。 二、防火閥從控制劃分有手動的和DC24V電磁鐵控制，即電動的； 三、防火閥從遠近控制的有遠程控制和本體控制的。
There are two kinds of fire proof valves , 70 degrees and 280 degrees, 70 degrees for the new air-compressors, when the temperature reached 70 degrees, the closure of the new air-compressors, has proven fire, another into the wind again. When the temperature reached 280 degrees, the closure of smoke extraction air-compressors, or else the fire will run wind Road reached elsewhere. 1, fire safe vavle from temperature divided : 70 degrees Celsius and 280 degrees Celsius. Second, from control by fire safe valve DC24V electro-magnet and a manual control, electric; 3, fire safe valve far from the control of the remote control and identity control.
 
三通閥[THREE WAY VALVE]
三通閥：誕生于50年代。三通閥有3個出入口與管道相連，相當于兩臺單座閥合成一體。三通閥最早是用于代替兩臺單座閥投入系統使用。三通閥分為合流和分流兩種。三通閥有3個出入口與管道相連，相當于兩臺單座閥合成一體；使用三通閥時，可省掉一個兩通閥和一個三通接管。三通合流閥有兩個入口，一個出口，將兩種介質混合成第三種介質。三通分流閥有一個入口，兩個出口，將一種介質經過閥后分成兩路。
Three-way valve : born in the 1950s. Three-way valve has three entrances and pipes, equivalent to two single-Block valves synthetic one. Three-way valve is used to replace two single-Block, the first valve input system. Three-way valve into two hands and streaming. Three-way valve has three entrances and pipes, equivalent to two single integrated Block valves; Use three-way valve, a two-valve and can be saved over a three links. Convergence devices have two three links entrance, a export, two medium mixed into the third medium. Three links a triage valves entrance, the two exports, a medium through valves will be divided into two after the road.

（1）三通閥可代替兩臺互為開關的兩個兩通閥使用，可省掉一個兩通閥和一個三通接管。（2）三通閥常用于熱交換系統旁路調節，也可以做簡單配比調節。（3）三通閥使用介質溫度應小于300℃，兩種介質溫度差應小于150℃。（4）三通閥更換氣開氣閉時，必須更換執行機構。（5）DN＜80時，合流閥也可做分流閥用。
(1) The three-way valve to replace two mutually switches two two-valves used to save a two-valve and a three links takeover. (2) The three-way valve used to regulate heat exchange system exists, can do simple limited regulation. (3) three-way valve used to be less than 300 degrees medium temperature, two medium temperature less than 150 degrees should be poor. (4) The three-way valve replacement gas to gas shut, the executing agency must be replaced. (5) DN<80, Convergence valves also do triage valves.
 
氣動調節閥[PNEUMATIC VALVE]
氣動調節閥由氣動執行機構和調節閥兩部組成。執行機構是執行器的推動裝置，它以壓縮空氣為動力，輸出推力；調節閥是執行器的調節部分，直接與介質接觸，調節介質的流量。由于氣動調節閥具有結構簡單，動作可靠，輸出推力大，維修方便，防火防爆和價廉等優點，氣動調節閥廣泛應用于化工、石油、冶金、電力、輕紡等工業生產過程的自動調節和遠程控制中。
Pneumatic valves regulate the pneumatic enforcement agencies and regulatory valves two. Enforcement agencies to promote the implementation of devices installed, it compressed air-driven, export thrust; Regulation valves are part of the implementation of devices to regulate direct contact with the media, regulatory medium flow. The pneumatic - valve structure with simple, reliable operation, export thrust large maintenance convenient and inexpensive, such as fire blast merits pneumatic - valve widely used for chemical, oil, metallurgical, electrical, textile and other industrial production processes autopilot and remote control.
氣動調節閥在公稱壓力和溫度范圍內可調節各種液體、氣體和蒸氣，氣動調節閥關閉時泄漏量小。氣動調節閥按執行機構的作用方式可達到氣開或氣閉之目的。
Pneumatic valves regulate the temperature in the context nominal pressure and may adjust various fluids, gases and steam, pneumatic - valve closed, leakage small. Pneumatic-valve at the role of the implementing agencies could reach a gas open or gas shut purposes
 
壓力調節閥[PRESSURE REGULATING VALVE]
壓力調節閥是一種無需外來能源而只依靠被調介質本身的壓力變化進行壓力自動調節的節能型產品， 您只需在壓力調節閥設備調試過程中根據自身工藝要求在壓力調節閥的引導指揮系統上設定壓力調節閥后壓力值，壓力調節閥就會將氣源壓力調節為您設定的閥后壓力并自動維持其恒定
pressure regulating valve is a reliance on external energy transfer medium itself was pressure changes pressure-type automatic adjustment of product, you can adjust the valve in the pressure equipment debugging process in accordance with their own processes pressure regulating valves for the guide command system set pressure after pressure regulating valves value, pressure regulating valves will be natural gas pressure regulating valves, the pressure for you to set and automatically maintain its constant;
壓力調節閥用于您在主控室內遠程控制下游氧氣流量；流量孔板用于將現場氧氣壓力調節閥組實際工藝參數反饋到主控室，使您可以方便地遠程調控現場氧氣壓力調節閥組
Pressure regulating valves in the control room for your remote control oxygen flow downstream; Flow will be used for on-site oxygen pressure regulation and feedback to control the actual process parameters to control the distance. you can easily adjust the oxygen pressure
 
溫控閥[TEMPERATURE CONTROL VALVE]
溫控閥主要起溫度控制作用.溫控閥的傳感器具有提供比例調節的充氣 波紋管。溫控閥傳感器是由四周室溫控制,波紋管內的效準壓力與室溫負荷相對應，該壓力由一個調整彈簧的張力來均衡。當室溫上升時，溫控閥波紋管內的液體壓力隨之上升，驅使溫控閥錐趨向關閉位置直至波紋管與彈簧之間得到平衡。
temperature control valve a major role in temperature control. temperature control valve sensors provide a ratio adjustment charge corrugated pipes. temperature control valve from around the room temperature control sensors, corrugated effect of the load relative to the prospective pressure and room temperature, the pressure from a spring tension adjustment to balance. When the room temperature increases, the liquid pressure temperature control valve corrugated pipes have increased and driven temperature control valve cone is closed position until corrugated balance between control and spring-loaded.

溫控閥可以根據用戶的不同要求設定室溫，它的感溫部分不斷地感受室溫并按照當前熱需求隨時自動調節熱量的供給，以防止室溫過熱，達到用戶最高的舒適度。溫控閥可以自動地按預定的要求保持準確的室溫，而不受氣候條件的影響。在每個房間內安裝一個溫控閥，保障能夠充分利用陽光、照明設施、機械和人體所散發的“免費”熱能，以打到節省能源的效果。

temperature control valve according to the different requirements of users set room temperature, its temperature constant feeling of the current hot demand at room temperature and in accordance with the automatic adjustment of heat supply in order to prevent overheating room temperature, users achieve the highest comfort. temperature control valve can automatically according to the requirements of maintaining accurate room temperature, without the impact of climatic conditions. Installed in each room of a temperature control valve guarantee to make full use of sunlight, lighting, mechanical and human circulated by the "free" heat to hit the effect of saving energy.
 
蝶閥[BUTTERFLY VALVE]
蝶閥是用隨閥桿轉動的圓形蝶板作啟閉件,以實現啟閉動作的閥門.蝶閥主要用截斷閥使用,亦可設計成具有調節或截斷兼調節的功能.目前蝶閥在低壓大中口徑管道上的使用越來越多
Butterfly valve is on/off by the turning of the stem which operate the round butterfly disc. It is mainly used as cut-off valve and also can be designed as regulating or cut-off / regulating combined valve. currently , butterfly is mainly used in the low pressure large size pipelines.

蝶閥的蝶板安裝于管道的直徑方向。在蝶閥閥體圓柱形通道內，圓盤形蝶板繞著軸線旋轉，旋轉角度為0°~90°之間，旋轉到90°時，閥門則牌全開狀態。
butterfly valve panels installed at the Tip of the diameter pipeline direction. In butterfly valve body flight corridors, the disc-shaped Tip boards around rotary axis, rotation angle for 0° -90 meridian east between rotary to +90, the valves are open all licence conditions.

蝶閥結構簡單、體積小、重量輕，只由少數幾個零件組成。而且只需旋轉90°即可快速啟閉，操作簡單，同時該閥門具有良好的流體控制特性。蝶閥處于完全開啟位置時，蝶板厚度是介質流經閥體時唯一的阻力，因此通過該閥門所產生的壓力降很小，故具有較好的流量控制特性。蝶閥有彈密封和金屬的密封兩種密封型式。彈性密封閥門，密封圈可以鑲嵌在閥體上或附在蝶板周邊。
butterfly valve structure simple, small size, light weight, only by a few parts. But it can be rapidly open and close-90E, simple to operate, while the fluid control valves have good character. butterfly valve a fully open position, Tip board thickness is only when the medium flows through body resistance, the pressure generated by the air valves small, it has a better flow control characteristics. butterfly valve a metal shells sealed and the two sealed sealed patterns. Flexible sealed valves, seal ring can embed in body or peripheral boards to Tip.