Name: Special fire signal res-ilient seated gate valve
Product introduction
Signal gate valve and signal butterfly valve are used in automatic spraying water pipeline in fire protection system to monitor the water supplying pipeline and can indicate the valve’s opening in a long distance.Rising stem gate valve and opening indicator gate valve are often used in fire protection system,and if the installation position is high to the ground,rising stem gate valve is used and can show the valve’s opening clearly and if the installation position is low,opening indicator gate valve is used.
Material
No.
part
material
1
Transmission cap
ductile cast iron,cast steel
2
Handwheel
Ductile iron
3
Dust proof gasket
Plastic
4
Gasket
Buna-N rubber or EPDM
5
Thrust bearing
Gunmetals
6
Cover
Grey cast iron,ductile cast iron,cast steel
7
Bolt
Carbon steel or stainless steel
8
Body
Grey cast iron,ductile cast iron,cast steel
9
Copper nut
Gunmetals
10
Stem
Stainless steel
11
Disc
Ductile cast iron packed with rubber or EPDM outside
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
