Parker 6A-C6L-1-BN-B Check Valve 3/8 in Compression Brass

Product Description

The PARKER 6A-C6L-1-BN-B is a 3/8 inch inline check valve designed to allow one-directional flow while preventing backflow in pressurized fluid systems. The body is constructed from brass with a stainless steel spring, giving it solid corrosion resistance in both water and light hydraulic service. Rated at 3,000 WOG (water, oil, gas), this valve is built for demanding line pressure applications. Both end connections are compression type, making field installation straightforward without soldering or threading. Plumbers, HVAC technicians, and mechanical contractors install this type of valve in residential and light commercial systems where backflow prevention is required at a compact inline fitting point.

This check valve is suited for inline installation in 3/8 inch compression-connection tubing runs. Typical applications include potable water supply lines, refrigerant liquid line segments where code allows, hydronic heating circuits, and compressed air or gas distribution lines operating within the 3,000 WOG pressure rating. The compression x compression configuration makes it compatible with standard soft copper, nylon, or polyethylene tubing of the corresponding size. It is commonly installed in tight spaces where soldered or threaded fittings would be impractical.

Key Features

• 3,000 WOG pressure rating supports demanding fluid, oil, and gas service applications
• Brass body provides durable corrosion resistance in water and light hydraulic service
• Stainless steel spring maintains reliable check function over extended service life
• Compression x compression end connections allow tool-friendly, no-solder installation
• Inline design fits easily into existing 3/8 inch tubing runs with minimal disruption

Compatibility

Designed as an OEM-style inline check valve for 3/8 inch compression tubing systems in plumbing, HVAC, and fluid distribution applications operating within the 3,000 WOG pressure rating.

Installation Notes

Installation should be performed by a licensed plumber or qualified mechanical technician in accordance with applicable IPC or local plumbing code requirements. Shut off and depressurize the supply line completely before cutting into the tubing run to install the valve. Verify the flow-direction arrow on the valve body is oriented correctly in the line before tightening compression fittings. Do not overtighten compression nuts, as brass fittings can crack under excessive torque.