Campbell 7961ss2vfd 1-1/4 in Spring Check Valve Low Lead Brass

Product Description

The CAMPBELL 7961ss2vfd is a 1-1/4 inch FNPT spring-loaded check valve designed for backflow prevention in potable water systems. Built from low-lead brass construction and rated for potable water service, it includes integrated taps for system monitoring and pressure testing without line interruption. The spring mechanism ensures positive shut-off when flow stops or reverses, making it suitable for residential and light commercial plumbing applications. Licensed plumbers and mechanical contractors install this valve where backflow prevention and serviceability are both required.

This check valve fits inline in 1-1/4 inch FNPT-threaded pipe runs in residential and light commercial water supply systems. The monitoring taps allow gauges or test equipment to be connected directly at the valve body, supporting routine maintenance and code-required backflow testing. It is well suited for installation on booster pump discharge lines, water service entries, and domestic hot and cold supply headers where reverse flow protection is needed.

Key Features

• Low-lead brass construction rated for potable water service
• Spring-loaded mechanism provides positive backflow prevention without relying on system pressure alone
• Integrated monitoring taps allow in-place pressure testing and gauge connections
• 1-1/4 inch FNPT connections for direct threaded installation into standard pipe runs
• Suitable for both residential and light commercial plumbing systems

Compatibility

Designed as an OEM-style replacement or new-installation check valve for 1-1/4 inch FNPT-threaded potable water plumbing systems in residential and light commercial applications.

Installation Notes

Installation should be performed by a licensed plumber in accordance with local plumbing codes and the International Plumbing Code (IPC). Shut off the water supply and relieve system pressure before installation or removal. Ensure the valve is installed in the correct flow direction as indicated on the valve body. Thread sealant or PTFE tape should be applied to male threads per standard trade practice.