Gate valve flange end JIS10K 20K

The gate valve damper plate makes the translation together along with the valve lever, is called the lifter gate valve ( also to be called the bright pole gate valve).Usually has the acme thread on the lifter, through in the valve peak nut as well as the valve chest guide channel, the rotary motion will become the translation, also will be operates the torque to become the operation thrust force.The packing surface may only depend upon the medium pressure to seal, namely the dependence medium pressure presses the damper plate packing surface to another one side valve seat guaranteed the packing surface the seal, this is from the seal.The majority of gate valves use the compulsion seal, when namely the valve shuts down, must depend upon the external force to press forcefully the damper plate to the valve seat, guarantees the packing surface the leak-proof quality.

Features:

1.1/2~12(DN15~DN300)

2.W.P.:JIS 10K/20K

3.W.T.:-425℃

4.Rising stem

5.Design:JIS B2071

6.Flange dimension:JIS 2220

7.Face to face:JIS B2002

8.Inspection & testing:JIS B2071

Form explanation :

Unit:mm

|189|

|301|

|302||303|

|304||305|