Key Features
- Constructed from corrosion-resistant marine bronze with a durable finish
- ANSI-NFPA 1963 standard screw threads for universal fire hose compatibility
- Working pressure rating: 10 kgf/cm² (1.0 MPa) for high-pressure applications
- Quarter-turn open/close operation for rapid response in emergency situations
- Suitable for seawater and freshwater systems
- IMPA 751751 certified – ensures global ship supply compliance
Technical Specifications
| Specification | Details |
|---|---|
| Material | Marine-grade bronze (ASTM B584 equivalent) |
| Connection Type | ANSI-NFPA 1963 screw thread (NH/NST) |
| Thread Size | Available in 1.5" and 2.5" (optional sizes on request) |
| Working Pressure | 10 kgf/cm² (1.0 MPa / 142 psi) |
| Seat Material | Composite / rubber for leak-tight shutoff |
| Temperature Range | -20°C to +80°C |
| Standards Compliance | ANSI/NFPA 1963, IMPA 751751 |
| Application | Shipboard fire hydrants, deck washdown, and marine hose connections |
Frequently Asked Questions
What does ANSI-NFPA 1963 thread compatibility mean?
ANSI-NFPA 1963 is a standard for fire hose connections, commonly used in the United States and internationally on marine vessels. It ensures the valve threads match standard fire hose couplings, providing a secure and interchangeable connection for firefighting and deck washdown systems.
What is the working pressure of this bronze hose valve?
This valve is rated for a working pressure of 10 kgf/cm² (approximately 1.0 MPa or 142 psi). This is suitable for most marine fire main systems and deck service applications.
Is this valve suitable for seawater service?
Yes, the marine bronze construction is specifically chosen for corrosion resistance in seawater environments. Bronze valves are commonly used in shipboard seawater systems and will provide long-term reliable service.
Can I use this valve with standard US fire department connections?
Yes, the ANSI-NFPA 1963 thread is the same as the NH (National Hose) thread used by most US fire departments, so it will connect directly to standard fire hoses and couplings.
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