Parker 12Z-C12L-1-SS Check Valve 3/4 in Comp X Comp Ss

Product Description

The PARKER 12Z-C12L-1-SS is a stainless steel inline check valve designed to allow one-directional fluid or gas flow while preventing backflow in pressurized piping systems. Built with both a stainless steel body and stainless steel spring, it connects via compression fittings on both ends and is rated for 6,000 WOG (Water, Oil, Gas), making it suitable for demanding service conditions. The 3/4 inch pipe size fits common medium-diameter line installations. This valve is typically installed by licensed plumbers, pipefitters, or mechanical contractors working on fluid control or process piping systems.

This check valve is suited for inline installation in residential, commercial, and light industrial piping systems where backflow prevention is required. The compression x compression end connections allow for tool-assisted, no-solder installation, which is practical in retrofit or tight-access scenarios. Its full stainless steel construction makes it appropriate for corrosive media, potable water, hydraulic fluid, oil, and gas service lines where material compatibility and longevity are priorities.

Key Features

• 6,000 WOG pressure rating for high-pressure fluid, oil, and gas service
• Stainless steel body and stainless steel spring for corrosion resistance
• Compression x compression end connections — no soldering required
• Inline valve orientation for straightforward in-line pipe installation
• 3/4 inch pipe size fits common medium-diameter piping runs

Compatibility

Designed as an OEM-style replacement or direct-install check valve for 3/4 inch compression-fit piping systems requiring one-directional flow control in water, oil, or gas service.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable IPC or local mechanical codes. Depressurize and isolate the line completely before removing any existing valve or fitting. Compression fittings require proper ferrule seating and should be tightened with the appropriate tubing wrench — do not overtighten. Verify flow direction markings on the valve body are aligned with the intended flow path before completing the connection.