As a key control component of the fire protection system, valves play a vital role in fire prevention and control, water source scheduling and system protection.
Main valve types and functions of fire protection system
Classification of fire-fighting valves
| Valve Type | Main functions | Typical application conditions |
|---|---|---|
| Gate valve | Main pipe cut off | Fire pump inlet and outlet pipes |
| Butterfly valve | Flow regulation | Fire ring network control |
| Check valve | Prevent media backflow | Pump outlet protection |
Valve configuration at key locations of fire protection system
Fire pump room
Inlet main: rising stem resilient seat gate valve (visible in open state)
Outlet main: pump outlet: silent check valve (to prevent water hammer when pump stops)
Indoor fire hydrant system
Annular pipe network: signal butterfly valve (with monitoring feedback)
Special technical requirements for fire valves
Materials and Structure
Shell material:
- General system: Ductile iron (EN-GJS-400)
- Corrosive environment: Stainless steel CF8M
Sealing system:
- Rubber seal: EPDM (aging resistant)
- Metal seal: Fire-fighting special soft seal structure
