Fire Stop Valve
The Fire Protection Stop Valve (often categorized with Globe or Gate valve mechanisms) is a fundamental safety component used to start or stop the flow of water within a fire protection circuit. Designed for high-pressure reliability, this valve ensures that sections of a piping system can be isolated for maintenance or directed during an emergency. Its robust construction and distinctive fire-red epoxy finish make it an essential standard for municipal engineering and commercial building safety.
Product Parameter
|
Feature |
Technical Specification |
|
Nominal Diameter |
DN15 – DN400 (1/2" – 16") |
|
Working Pressure |
PN10 / PN16 / PN25 (150 psi – 300 psi) |
|
Body Material |
High-Strength Ductile Iron (GGG50) / Cast Steel |
|
Sealing Type |
Resilient Seating (EPDM) or Metal-to-Metal (Stainless Steel) |
|
Connection Standard |
Flanged (ANSI B16.5 / EN1092) or Threaded (NPT) |
|
Operation |
Manual Handwheel / Gear Operated / Actuated |
|
Coating |
Fusion Bonded Epoxy (FBE), Min 250μm Thickness |
Product Feature and Application
Positive Shut-off:
Engineered to provide a 100% leak-tight seal, ensuring no water migration into isolated zones.
Low Maintenance:
Simple internal architecture allows for long intervals between servicing, even when the valve remains in one position for years.
Visual Status:
Features a rising stem or a clear position indicator to allow fire marshals to verify at a glance if the valve is "Open" or "Closed."
Applications:
Widely used in fire pump suction and discharge lines, control headers for sprinkler systems, water tank isolation, and municipal water main branches.
Product Details
- Corrosion-Resistant Internals: Features a stainless steel stem and bronze/stainless trim to prevent "sticking" caused by calcification or rust.
- Reinforced Body: The heavy-wall cast body is designed to withstand water hammer and pressure surges common in fire pump start-ups.
- High-Grade Packing: Utilizes self-lubricating PTFE or flexible graphite packing to ensure the stem remains leak-free throughout its lifecycle.
- Handwheel Design: Large diameter, high-torque handwheel for easy operation under full system pressure.
Product Display
Isometric View:
Highlighting the high-gloss red protective coating.
Internal Cutaway:
Showing the precision alignment of the valve plug and seat.
Installation Layout:
Displayed as a master shut-off valve in a typical fire riser room.
Transport Package
- Individual Packing: Each valve is shrink-wrapped to maintain cleanliness and prevent coating abrasion.
- Crating: Units are secured in reinforced, export-standard wooden crates with moisture-absorbent silica gel packets.
- Security: Flange faces are protected with heavy-duty plastic covers to prevent impact damage during transit.
After-sales Service
Technical Guidance: Provision of installation schematics and torque specifications for bolt tightening.
Global Support: 24/7 technical hotline for emergency troubleshooting and rapid dispatch of replacement seals or internal components.
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