Comparison of Chinese and English Valve Names

1-01 Self-acting valve Self-acting valve relies on the ability of the media itself

1-02 Actuanted valve Actuated valve by manual, electrical, hydraulic or pneumatic

2-01 gate valve, slide valve, gate valve, slide valve driven by the valve stem

2-02 Parallel gate valve, parallel slide valve Valves with parallel sealing surfaces on both sides of the gate

2-03 wedge gate valve wedge seal valve

2-04 Lifting rod type valve Outside rising stem stem through handwheel type gate valve

2-05 Rotary-type gate valve Non-swirling stem type gate valve

2-06 Quick open-and-close gate valve Valve stem for both rotary and lifting movements

2-07 Shrinkage gate valve Contraction cavity gate valve Different valve body diameter, valve seat sealing surface diameter is less than the flange connection diameter of the valve

2-08 Flat gate valve This type of gate valve has a diversion hole and no diversion hole. Flat gate valve with diversion hole can clear the ball through the ball, flat gate valve without diversion hole can only Used as opening and closing device on the pipeline

3-01 Butterfly valve opening and closing valve (disc) rotating valve around a fixed axis

3-02 Center line-type butterfly valve Center of rotation of butterfly plate (namely, center of valve shaft) Butterfly valve located on the center line of valve body and seal section of butterfly plate

3-03 Single-eccentric center butterfly vale The rotary center of the butterfly plate (ie, the center of the valve shaft) is located on the centerline of the valve body and forms a butterfly valve with a size offset with the butterfly plate sealing surface.

3-04 double eccentric butterfly valve Double-eccentric center butterfly valve butterfly board's revolving center (that is, the valve shaft center) and the butterfly plate seal section form a size offset, and with the valve body center line to form another size biased butterfly valve

Three-eccentric center butterfly valve Three-eccentric center butterfly valve The center of rotation of the butterfly plate (ie, the center of the valve shaft) forms a size offset with the butterfly plate sealing surface and forms another size offset with the centerline of the valve body; The centerline of the face forms an angle-biased valve with the centerline of the valve seat (ie, the centerline of the valve body)

4-01 Rotary valve Opening and closing parts Valves for relative rotation along the seat seal surface axis

4-02 Ball Valves Ball Valves A valve that rotates about an axis perpendicular to a passageway.

4-03 Float ball valve Ball valve without fixed shaft

4-04 Fixed Ball Valve Fixed Ball Valve

4-05 Flexible ball valve Flexible ball valve

4-06 Plug valves Cock, plug Openings (plugs) Valves that rotate about their axis

4-07 Clampyte plug valve Clampyte plug valve Plug without plug, seal between plug and plug sealing surface Reliance on tightening nut under plug to achieve plug valve

4-08 Packing Plug Valves Cland packing plug valve Packing Sealed Plug Valves

4-09 Self-sealing plug valve The seal between the plug and the plug body mainly depends on the pressure of the medium itself.

4-10 Oil Sealed Plug Valve Lubricated plug valve Grease Sealed Plug Valve

4-11 Rotary Column Valve Cock, plug Opening and closing member (cylindrical stopper) Valve that rotates around its axis

5-01 Baffler valve Baffler valve (baffle) Relative movement on the seat sealing surface to the seat sealing surface, but does not pass through the valve seat sealing surface

5-02 Globe valve, stop valve Opening and closing valve (valve) is driven by the valve stem and moves up and down along the axis of the valve seat (sealing surface).

5-03 Upper thread stem stop valve Outer screw stem stop valve

5-04 Lower thread stem stop valve Inside stem stem stop valve

5-05 Straight-through shut-off valve Globe valve Media inlet and outlet Two channels in the same direction, 180° shut-off valve

5-06 Angle globe valve Two-lane 90° globe valve

5-07 Three way stop valve Three way stop valve

5-08 type valve globe valve stem and channel angled shut-off valve

5-09 Plunger type globe valve Plunger type globe valve is the deformation of the conventional globe valve. Its valve disc and valve seat are designed according to the principle of the plunger; the valve flap is designed as a plunger, and the valve seat is designed. A complete set of rings, sealed by the cooperation of a plunger and a collar

5-10 Needle globe valve Needle globe valve Valve seat hole size smaller than the nominal diameter of the stop valve

6-01 throttle valve Throttle valve through the opening and closing parts (valve) to change the cross-sectional area of ​​the passage to regulate the flow. Pressure of the valve

6-02 Trench type disc throttle valve Trench type disc throttle valve commonly used in cryogenic devices in the expansion valve

6-03 Window type disc throttle valve Window type disc brake valve is applicable to the throttle valve with large nominal diameter

6-04 plug disc throttle valve is suitable for medium and small diameter throttle valve

7-01 check valve, Non-return valve (valve) The valve that automatically prevents the medium from flowing back by the media force.

7-02 Swing check valve Check valve for rotating the valve body around the fixed axis in the body cavity

7-03 Single disc swing check valve Single disc swing check valve Single disc swing check valve

7-04 Multi-disc swing check valve Swing check valve with more than two discs

7-05 Lift check valve Check valve for lifting movement perpendicular to the valve seat hole axis

7-06 Foot valve Installed on the suction pipe end of the pump to ensure that the water is filled in the suction pipe.

7-07 spring-loaded lift check valve This valve not only reduces the water hammer pressure, but also has a smooth flow path and low flow resistance.

7-08 spring-loaded annular disc lift check valve Spring-loaded annular disc lift check valve This valve has a smaller disc stroke compared to the conventional structure of the lift check valve, and it is closed by the spring load. Rapidly, therefore, more conducive to reducing water hammer pressure

7-09 Multi-annulus lift check valve This valve has the smallest disc stroke, so it closes more quickly

7-10 Butterfly swing check valve Similar to the butterfly flap, check valve flap to rotate around a fixed axis (no rocker)

7-11 Line check valve Check valve that slides along the center line of the valve body. The valve is small, light weight, and has good processing technology, but the flow resistance coefficient is slightly larger than the swing check valve. Big

7-12 No-load running check valve This is a special-purpose check valve, which is used for the outlet of the boiler feed pump to prevent the back flow and the emptying of the medium.

7-13 Dashpot check valve Dashpot check valve is provided with a buffer device on a swing check valve or lift check valve to form a slow closing check valve. This check valve can effectively prevent water hammer.

7-14 diaphragm check valve Diaphragm type check valve This valve is a new structure of the check valve, although its use is limited by the temperature and pressure, but it prevents the water hammer pressure than the traditional swing type Check valve is much smaller

7-15 Tapered Diaphragm Check Valve Tapered diaphragm type check valve This valve clip is installed between two flanges of the pipe, and the closing speed is extremely fast.

7-16 Annular woven diaphragm type check valve Annular woven diaphragm type check valve This valve adopts a pleated annular rubber diaphragm. The closing speed is extremely fast, but its use range is usually subject to pressure difference (△p<1MPa) and temperature (t Restriction of <70°C)

7-17 Ball check valve Rubber ball (single ball and multi-ball) under the action of the media, in the dome cover, it makes a short stroke back and forth along the center line of the valve body to realize the opening and closing action.

8-01 ​​Safety valve An automatic valve that uses the force of the media itself to discharge a nominal amount of fluid without any external force to prevent the pressure in the system from exceeding a predetermined safe value. When the pressure returns to normal, the valve Reclose and stop the media from flowing out

8-02 Weighted safety valve A check valve for balancing valve pressure with a lever and a hammer. This structure can only be used on fixed equipment. The weight of the hammer should not exceed 60kg.

8-03 Spring type safety valve Spring type safety valve uses the force of the compression spring to balance the pressure of the valve flap and make it seal the safety valve. The spring force of such safety valve should not exceed 20000N in general.

8-04 Pulse type safety valve This valve designs the main valve and the auxiliary valve to actuate the main valve through the pulse action of the auxiliary valve. This structure is usually used for large-diameter high-displacement and high-pressure systems.

8-05 Low lift safety valve The valve opening height is 1/40~1/20 of the valve seat throat safety valve.

8-06 Full-Valve Safety Valves with a flap opening height equal to or greater than 1/4 of the throat diameter of the valve seat.

8-07 Fully sealed safety valve All sealed bonnet tgpe When the safety valve is opened, the medium does not leak to the outside, but is discharged through the drain pipe. This structure is suitable for flammable, explosive and toxic media.

8-08 Half sealed bonnet type safety valve When the discharge is opened, part of the medium is drained through the drain pipe, and the other part leaks out from the fitting of the bonnet and stem. This structure is suitable for general steam And media that are environmentally friendly

8-09 Exposed type safety valve Exposed type safety valve When discharging, the medium is directly discharged from the top of the valve flap. This safety valve is suitable for applications where there is no requirement for environmental pollution.

8-10 direct-load safety valve Direct loaded safdty valve Direct use of mechanical loads such as weights, lever weights or springs to overcome the safety valve force caused by the pressure under the disc

8-11 Safety valve with auxiliary device Assisted safety valve This safety valve can be opened under a normal opening pressure by means of a power assist device. Even if the auxiliary device fails, the valve can still meet the requirements of the standard.

8-12 Safety valve with supplementary load Supplementary safety valve This safety valve always maintains an additional force to enhance the seal before the pressure at its inlet reaches the opening pressure. This additional force (supplementary load) can be provided by external sources of energy and is safe. When the valve reaches the opening pressure, it should be reliably released. Its size should be set such that if the additional force is not released, the safety valve can still reach the rated displacement without the inlet pressure exceeding the opening pressure percentage prescribed by the national regulations.

8-13 Pilot operated safety valve A pilot valve that is driven or controlled by a pilot valve. The pilot valve itself should be a direct-load safety valve that meets the requirements of the standard.

8-14 Lever and weight loaded safety valve Lever and lever used to transfer force to valve disc

8-15 Bellows seal balance safety valve Bellows seal balance safety valve Use bellows to balance the effect of back pressure to keep the opening pressure constant

8-16 duplex safety valve Duplex safety valve connects two spring-loaded safety valves in parallel and has the same inlet safety valve group.

9-01 Pressure reducing valve Through the throttling of the opening and closing part, the medium pressure is reduced, and the energy of the medium itself is used to make the pressure behind the valve automatically meet the predetermined requirements of the valve.

9-02 piston pressure reducing valve Piston reducing vakve piston as a sensing element

9-03 Diaphragm reducing valve Diaphragm reducing valve adopts a membrane as a sensing element to drive the valve flap

9-04 Air bag type reducing valve Relief valve that relies on the pressure behind the valve to enter the air bag to balance the pressure of the valve.

9-05 spring diaphragm pressure reducing valve spring diaphragm reducing valve spring and membrane as the sensing element to drive the valve of the valve lift movement

9-06 Bellows seal reducing valve Pressure reducing valve with bellows mechanism to move the valve up and down

9-07 Lever reducing calve Lever reducing mechanism using lever mechanism to drive valve lift motion

9-08 Fixed pressure reducing valve Fixed pressure reducing valve

9-09 Proportionging pressure reducing valve Proportional pressure reducing valve with a certain ratio of outlet pressure to inlet pressure or a certain reference pressure

9-10 Fixed differential pressure reducing valve The fixed pressure difference between the outlet pressure and the inlet pressure or a certain reference pressure

9-11 Direct-acting reducing valve Direct-acting reducing valve

9-12 pilot-operated reducing valve Pilot-operated reducing valve consists of a main valve and a pilot valve. The outlet pressure changes through amplification, and the pressure reducing valve that controls the operation of the main valve

9-13 Pilot operated pressure reducing valve Main valve In the pilot operated pressure reducing valve, the valve controlled by the pilot valve to regulate the flow medium.

9-14 Pilot valve pilot operated Pilot valve in pilot operated pressure reducing valve

9-15 Direct acting pressure reducing valve Direct accing reduding valve Pressure acting on valve disc

9-16 reverse acting reducing valve Reverse acting reducing valve Imported medium force on valve disc Pressure reducing valve with reversed direction of valvular valve Rotary pump Castel wine

9-17 Balanced reducing valve Pressure reducing valve with inlet media acting on valve disc close to or reaching balance

10-01 Steam trap Steam trap Valve that automatically drains condensate and prevents steam from leaking

10-02 Mechanical steam trap Mechanical steam trap is driven by the change of the condensing water level to make it complete the steam trap.

10-03 Ball float steam trap Ball float steam trap using hollow ball floating in the condensate

10-04 Free-ball float steam trap Free-ball float steam trap The opening and closing of the opening and closing parts (free floats) caused by the change of the liquid level in the condensate inside the housing. The valve can discharge saturated water and can continuously discharge condensation. water

10-05 Lever-ball float steam trap Lever-ball float steam trap The opening and closing of the opening and closing parts (lever floats) caused by changes in the liquid level of the condensate in the housing. The valve lever mechanism is characterized by the fact that the buoyancy can be increased. , can be used for large displacement occasions

10-06 Free Half Float Steam Trap Free-semi-ball float steam trap uses freely movable hemispherical floats (free half floats). The float itself has the function of a flap. It has no hinges. Lever and Couplings The structure that can open and close the valve port is also the simplest structure steam trap

10-07 open downward float steam trap Inverted bucket steam trap has its float opening downwards, and the opening and closing of the opening and closing part is caused by the change of the liquid level of the condensate in the float. Most of the valves do not directly fix the valve flap. Instead of a float, a lever mechanism is used to increase buoyancy

10-08 Open upward float type steam trap Open bucket force steam trap This valve is also called floating bucket steam trap. It is a steam trap that uses a float bucket in the condensate to drive the opening and closing parts.

10-09 Hot-statical steam trap Hot-statical force steam trap Activates the opening and closing parts by changing the condensing water temperature to make it complete the steam trap

10-10 bellows-type steam trap Bellsws seal steam trap This valve is in the serpentine tube container, that is sealed in the corrugated tube with low boiling point, volatile liquid as a temperature sensing element. The valve flap is fixed on the bellows. With temperature changes, the bellows expands and opens and closes the steam trap

10-11 Membrane-box steam trap Membrane-box steam trap This valve is a steam pressure type, which actuates the opening and closing parts by the imbalance between the pressure of the condensate and the vapor pressure of the volatile liquid in the deformable element. The valve will not produce air lock

10-12 Bimetal elements steam trap Bimetal elements steam trap The use of bimetal heat deformation, steam traps to drive the opening and closing parts. The valve does not block phenomenon

10-13 Hot-motive force steam trap Hot-motive force steam trap is a steam trap that drives the opening and closing parts to change the dynamic characteristics of the condensate.

10-14 Disc steam traps Dise steam teap Steam traps that use the different thermodynamic properties of steam and condensate and their static and dynamic pressure changes

10-15 Impulse steam trap Impulse steam trap utilizes the secondary evaporation of steam in two-stage throttling, resulting in pressure changes in steam and condensate, and steam traps that actuate the opening and closing elements.

10-16 Labyrinth Orifice Steam Traps Orifice steam trap Steam traps of this type control the discharge of condensate from the orifice and allow the hot condensate to change, reducing steam outflow.

11-01 Diaphragm valve Diaphragm valve Opening and closing parts (diaphragms) are driven by the valve stem and move up and down along the axis of the valve stem and separate the action mechanism from the media.

11-02 Globe diaphragm valve Diaphragm valve with similar body shape

11-03 Diaphragm valve with sealing pair in the valve body of the valve flow path

11-04 Wedge diaphragm valve Slit diaphragm valve with similar shape as single gate plate of wedge gate valve

12-01 Multi Purpose Valve Multi Purpose Valve

12-02 Serew-down stop check valve A valve that functions both as a stop and a check, and is suitable for applications where the installation position is limited.

12-03 Semit-down stop check and throttle valve A three-way valve that can act as a stop, check, and throttling valve. This valve is used in a large number of wells and water injection devices.

12-04 Safety valve Serew-down stop check and safety valve

12-05 Check-ball valve A dual-purpose valve that can be used as a non-return valve and ball valve