1-01 Automatic valves Self-acting valve Self-acting valve that relies on the capability of the medium itself 1-02 Actuated valves Actuated valves manually, electrically, hydraulically or pneumatically 2-01 Gate valves, slide valve Opening and closing parts (Gate) Valve that is driven by the valve stem and moves up and down along the seat sealing surface 2-02 Parallel gate valve, parallel slide valve Gate valve with sealing surfaces parallel to each other 2-03 Wedge gate valve Wedge Gate valve gate on both sides of the sealing surface into a wedge-shaped gate valve 2-04 lift lever gate valve outside the stem movement of the lifting screw, the drive thread in the body cavity outside the gate valve 2-05 Rotary Rod Gate Inside the body cavity gate valve 2-06 Quick opening and closing gate valve The stem is used as both rotating and lifting gate valve 2-07 Contraction cavity gate valve Valve body diameter of the channel, the valve seat sealing surface diameter smaller than the diameter of the flange connection valve 2-08 Flat gate valve This type of gate valve with a diversion hole and no diversion hole points with a flat gate valve with guide hole through the ball pig, without the guide hole of the flat gate valve can only be used as a tube Opening and closing device on the road 3-01 Butterfly valve Opening / closing member (disc) Valve rotating around a fixed axis 3-02 Center line-type butterfly valve The center of rotation of the disc (ie, the valve shaft center) Butterfly valve on centerline and butterfly seal cross section 3-03 Single-eccentric center butterfly vale The center of rotation of the butterfly plate (ie the valve shaft center) is located on the centerline of the valve body and forms a dimension with the sealing surface of the butterfly plate Offset Butterfly Valve 3-04 Double-eccentric center butterfly valve The center of rotation of the disc (ie the center of the valve shaft) forms a dimensional offset from the disc seal cross-section and forms a further dimensional offset from the valve body centerline Butterfly Valve 3-05 Three-eccentric center butterfly valve The center of rotation of the disc (ie the center of the valve shaft) forms a dimensional offset from the sealing surface of the disc and forms a further dimensional offset from the valve body center line. The valve body The centerline of the sealing surface forms an angular offset valve with the center line of the valve seat (ie, body centerline). 4-01 Rotary valve Rotary valve The valve that rotates relative to the axis of the seat sealing surface 4-02 Ball valve Ball valve Opening and closing member (ball) Valve that rotates about an axis perpendicular to the passage 4-03 Float ball valve Ball Valve without fixed shaft 4-04 Fixed ball valve Fixed ball valve Ball valve with fixed shaft 4 -05 Ball valve Flexible ball valve Ball valve with flexible ball 4-06 Stopcock Cock, plug Opening and closing piece (plug) around its axis of rotation of the valve 4-07 Clampyte plug valve plug body without Packing, plug and plug body sealing surface Sealing by plug nut under the tighten the plug to achieve the plug valve plug 8-08 Cland packing plug valve with plug-in plug valve 4-09 Self-sealing plug valve The plug and plug body seal depends mainly on the pressure of the medium. Plug Valve 4-10 Oil-sealed plug valve Lubricated plug valve Grease-sealed plug valve 4-11 Spool valve Cock, plug (Cylindrical plug) Valve that rotates about its axis 5-01 Flapper valve Baffler valve The shutter (flapper) moves relative to the valve seat sealing surface beyond the seat sealing surface without passing through the valve seat seal Valve 5-02 Globe valve, stop valve Opening and closing piece (valve flap) Valve driven by valve stem and moving up and down along the valve seat (sealing surface) axis 5-03 Upper screw stem Shut-off valve Outside screw stem stop valve Stem thread Shut-off valve outside the housing 5-04 Threaded stem stop valve Threaded stem stop valve 5-05 Straight-way globe valve Globe import and export of media Two Angle valve with 180 ° stop in the same direction 5-06 Angle pattern globe valve Inlet and outlet of medium Two shut-off valves at 90 ° 5-07 Three way stop valve Three-way stop valve with three channels Globe Valves 5-08 Globe Valves Oblique type globe valve Globe Valve Globe Valve Globe Valve 5-09 Plunger globe valve Plunger globe valve is a conventional globe valve deformation valve Flap and valve seat is set according to the principle of the plunger ; The valve is designed as a plunger, the seat design of the ring, the plunger and the ring with the seal to achieve 5-10-pin globe valve needle Needle globe valve valve hole size than the nominal diameter of the globe valve 6 -01 Throttle valve Throttle valve to change the passage cross-section to adjust the flow rate through the opening and closing piece (valve disc) Pressure valve 6-02 Trench type disc throttle valve Commonly used in the expansion valve in cryogenic equipment 6-03 Window type disc throttle valve Suitable for throttle with larger nominal diameter 6-04 Plug disc throttle valve Suitable for medium and small caliber throttle 7-01 Check valve, Non-reture valve Opening and closing member (valve flap) Valve automatically prevents reverse flow of medium by medium force. 7-02 Swing check valve Swing check valve Flange Check valve for rotational movement 7-03 Single disc swing check valve Swing check valve with only one flap 7-04 Multi-disc swing check valve Swing check valve with more than two discs 7-05 Lift check valve Check valve vertically moving up and down from the hole of the valve seat 7-06 Foot valve Foot valve installed on the suction side of the pump to ensure that the suction pipe is filled with water Check valve 7-07 Spring loaded lift-off check Spring-loaded lift check valve The valve not only reduces the water hammer pressure, and the flow path is smooth, the flow resistance is very small. 7-08 Spring-loaded annular disc lift check valve The valve and the usual Structure of the lift check valve compared to the valve stroke smaller, combined with the role of the spring load, so that it closes quickly, and therefore more conducive to reducing the water hammer pressure 7-09 Multi-ring flow check valve Lift Mu
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