Parker 12A-C12L-1-SS 3/4 Inch Ss Inline Check Valve

Product Description

The PARKER 12A-C12L-1-SS is a stainless steel inline check valve designed to allow one-directional fluid flow while preventing backflow in pressurized piping systems. Built for demanding service, the valve features compression x compression end connections on a 3/4 inch pipe size and carries a 6,000 WOG (Water, Oil, Gas) pressure rating. Both the body and spring are constructed from stainless steel, making this valve well-suited for corrosive media, high-purity, or hygienic applications. It is installed by licensed plumbers, pipefitters, and industrial maintenance technicians in commercial and industrial settings.

This check valve is used in inline piping runs where backflow prevention is required without the need for external actuation. The compression x compression configuration allows installation into copper or compatible tubing without soldering, making it practical for retrofits and service work in mechanical rooms, process piping, HVAC hydronic systems, and light industrial fluid handling. Its 6,000 WOG rating supports use in high-pressure water, oil, and gas service lines where a reliable non-return function is critical.

Key Features

• 6,000 WOG pressure rating for water, oil, and gas service
• Stainless steel body and spring construction for corrosion resistance
• Compression x compression end connections — no soldering required
• 3/4 inch pipe size fits standard trade piping configurations
• Inline orientation allows direct installation in existing pipe runs

Compatibility

Designed as an OEM-style replacement or direct-install component for inline backflow prevention in 3/4 inch compression-fitting piping systems across commercial and industrial applications.

Installation Notes

Installation is typically performed by a licensed plumber or pipefitter. Shut off and depressurize the system completely before removing any existing fittings or valves. Compression fittings must be tightened to the fitting manufacturer's specifications using appropriate wrenches — do not overtighten. Verify flow direction markings on the valve body before securing final connections, and pressure-test the system after installation in accordance with local plumbing codes.