- The flashboard has two sealing faces. The most commonly used flashboard has a wedge forming by two sealing faces. The wedge angle varies with valve parameters, usually 5°.
- The sealing principle of wedge gate valve is seal through close connection of wedging of two sealing faces of wedge flashboard and two sealing faces of valve body.
- Valve body and valve cover may be connected by bolts, pressure self-tight or welding.
- The flashboard is solid flashboard.
Design standard: API 602/BS5352
The length of the structure: length of structure of socket welding / thread end of forged steel gate valve is manufactured by factory standard=
The length of structure of flange/ butt welding end of forged steel gate valve is manufactured by ASME B16.10
Flange connecting end: ASME B16.5
Butt welding connecting end: ASME B16.25
Wall thickness: API 602/ASME B16.34
Inspection and test: API 602
Pressure and temperature rating: ASME B16.34
Product scope: NPS ½″~NPS 3″,CL150~CL2500
Main body material:A105､LF2､F11､F22､F51､F91､F304､F316､F304L､F316L etc.
Drive device: handle, bevel gear, electric, pneumatic, etc.