Pressure valve HRA

manualpressure-reducingfor water

Product Overview
UL Pressure Restricting Angle Hose Valve, model HRA, is a brass angle valve designed to control and reduce outlet pressure for fire hose rack and standpipe systems. The valve features an adjustable flow restriction mechanism and a locking pin to prevent unauthorized full opening, providing controlled, compliant discharge pressure per system design.

Applications

• Fire hose rack assemblies in commercial and residential buildings.
• Standpipe systems where outlet pressure must be restricted for safe use.
• High-rise buildings to maintain acceptable pressure on upper floors.
• Hospitals, schools and public facilities with fixed hose systems.
• Industrial sites and warehouses fitted with standpipes or hose racks.

Sketch
Illustrative sketch provided for installation and assembly reference; consult installer for exact orientation and mounting requirements.

Key Features and Benefits

• UL listed to standard UL 1468, meeting NFPA requirements for pressure-restricting valves.
• Adjustable flow restriction allows precise setting of outlet pressure.
• Locking pin device limits valve opening to prevent untrained operation.
• Ensures consistent, controlled water flow during firefighting operations.
• Durable brass construction suited for fire protection systems.
• Designed for straightforward maintenance and long service intervals.
• Compatible with standard fire hose racks, standpipes and hydrant outlet connections.

Frequently Asked Questions (FAQ)
Q: Does this valve comply with NFPA standards? A: Yes. The HRA is UL listed, which satisfies NFPA requirements for pressure-restricting valves. FM listing is not required for UL compliance.

Technical Specifications

• Model: HRA
• Material: Brass
• Size & Connection: Thread 1½" to 2½"
• Working Pressure: 175 PSI (12 bar)
• Valve Standard: UL 1468