Rising stem resilient seated gate valve special for fire protection has resilient seated gate valve’s advantage and it shows the valve’s opening directly so that see the valve’s opening in a long distance and take effective actions.It opens or closes liable and quickly so it is often used in fire protection system.
Material
Serial no.
Part
Material
1
Handwheel
Ductile iron
2
Stem nut
Copper alloy
3
Support
Grey cast iron,ductile cast iron,cast steel
4
Gland
ductile cast iron,cast steel
5
Gasket
Buna-N rubber or EPDM
6
Stem
Stainless steel
7
Gasket
Buna-N rubber or EDPM
8
Disc
Ductile cast iron packed with rubber or EDPM outside
9
Body
Greycast iron,ductile cast iron,cast steel
Main technic-al parameters
Nominal pressure: 1.0-2.5MPaWorking temp.:0-120Flanged end:GB/T17241.6 GB9113,ASME 16.5 etc.. Nominal diameter: 50-400mmService:water,oils,gas etc..Inspection and test:GB 13927 API 598
