Threaded X Grooved Check Valves

Water Gauge Fixture Sets That Keep the Water in Check

UL Listed and FM Approved.
100% Pressure Tested for Fire Protection Systems.
Approved as an anti-water hammer check valve for fire pump service only.
250 WOG at 180°F Max
Threaded X Grooved Ends

United Brass Works’ threaded X-grooved check valves provide reliable backflow prevention for fire protection systems. These unidirectional valves allow fluid to flow in one direction while preventing reverse flow, protecting critical piping infrastructure.

What Are Threaded X-Grooved Check Valves?

A threaded X-grooved check valve features a threaded connection on one end and a grooved connection on the other. These designs offer installation flexibility and are dependable for fire protection, sprinkler systems, and standpipes.

• Threaded end allows secure installation with threaded pipe fittings.
• Grooved end is compatible with Victaulic or other grooved couplings for easy assembly, disassembly, and maintenance.
• Typically available in sizes four inches or smaller, with male or female connections.

Examples of Threaded X-Grooved Check Valves

4″ GR x GR Brass UL/FM Check Valve

• Suitable for vertical or horizontal installations in fire protection and sprinkler systems.
• Features a spring-loaded clapper for smooth operation.
• Includes a ½” tap and plug for system monitoring.
• UL Listed and FM Approved.
• Weight: 11.8 lbs.

Grooved Swing Check Valve

• Designed for wet pipe systems.
• Working pressure: 300 psi.
• Available with an EPDM or NBR-coated disc and a brass seat.
• Can be installed vertically or horizontally.

Installation Applications

Threaded X-grooved check valves can be installed in various fire protection system components, including:

• Fire pump discharges
• Fire department connections (FDCs)
• Gravity tank connections
• Supply lines

Advantages of Grooved Check Valves

✔ Prevents backflow, ensuring system integrity.
✔ Automatic operation—opens and closes based on fluid direction.
✔ Easy installation and maintenance, thanks to grooved couplings.

For reliable fire protection system performance, trust United Brass Works grooved check valves to provide durability, efficiency, and compliance with industry standards.

Shop UBW’s Threaded X-Grooved Check Valves