Parker 6M-C6L-1-BN-B Check Valve 3/8 Inch Mnpt Brass

Product Description

The PARKER 6M-C6L-1-BN-B is a 3/8 inch inline check valve designed to allow one-directional flow and prevent backflow in fluid or gas piping systems. Rated at 3,000 WOG (Water, Oil, Gas), this valve is built for demanding service across hydraulic, pneumatic, and general industrial plumbing applications. The brass body offers strong corrosion resistance in a compact inline form, while the stainless steel spring provides reliable cracking force and long service life. Both end connections are MNPT, making installation straightforward in standard threaded pipe runs. Licensed plumbers and pipefitters are the primary installers of this type of valve.

This check valve is suited for residential and light commercial plumbing, hydraulic lines, compressed air systems, and fluid transfer applications where backflow prevention is required. The 3/8 inch pipe size fits typical branch lines and smaller-diameter runs in mechanical systems. The MNPT x MNPT configuration allows it to thread directly into female-threaded fittings or ported components without additional adapters in most installations.

Key Features

• 3,000 WOG pressure rating for use in water, oil, and gas service
• Brass body construction for corrosion resistance in fluid and gas environments
• Stainless steel spring for consistent cracking performance and durability
• MNPT x MNPT end connections for direct threaded installation
• Inline valve design for easy integration into existing pipe runs
• 3/8 inch pipe size fits standard branch and secondary line configurations

Compatibility

Designed as an OEM-style replacement or new-installation check valve for 3/8 inch MNPT-threaded piping systems handling water, oil, or gas service up to 3,000 WOG.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local codes and the IPC or IFGC as appropriate to the service media. Shut off and depressurize the line completely before removing an existing valve or installing this unit. Apply thread sealant tape or compound rated for the service media to all MNPT threads before assembly. Do not exceed the rated WOG pressure for the service application.