閥門是工業農業生產和生活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]

球閥和旋塞閥的工作原理相同，只有閥芯的關閉件是個球體，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. Cast Steel Fixed Ball Valve Full Welded Ball Valve Forged Steel Fixed Ball Valve Cast steel Floating Ball ValveForged Steed Floating -Ball Valve V type Ball valve

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. D71X wafer soft seat butterfly valve Flanged type three offset Butterfly valve Lug type double offset Butterfly Valve Tripe Eccentric -Butterfly Valve Single eccentric -manual wafer soft seat -butterfly valve

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" API Cast Steel Globe Valve Bellow Sealed Globe Valve API Pressure Sealed Globe Valve Cryogenic Globe ValveFlanged End Globe Valve150Lb~1500Lb Flanged End Pressure Seal Globe Valve Y-Pattern Globe Valve Pressure seal Pattern Globe Valve JIS Globe Valve

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。控制閥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。

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 .API Forged Steel Gate Valve API Cast Steel Gate Valve API Plate Gate Valve API Pressure Seal Gate ValveAPI Bellows Gate Valve JIS Gate valve API Cryogenic Gate Valve DIN3352 Gate Valve API Forged Presure-seal Gate Valve

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. Flanged End Check Valve 150Lb~600Lb Forged Steel Pressure seal Swing Check Valve Piston Check Valve Y-Pattern Piston Check Valve Cast Steel Swing Check Valve Butterfly Swing Check Valve Cast Steel Pressure seal Swing Check Valve DIN Swing Check Valve

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.