Parker M315-4201 Pressure Reducing Valve 250 Psi

Product Description

The PARKER M315-4201 is a proportional control pressure reducing valve rated to a maximum of 250 psi. It reduces inlet pressure to a controlled range of 6 to 18 psi, making it suitable for fluid systems that require precise downstream pressure regulation. The valve features a bronze body and a 1-inch Female NPT connection. Weighing 31 pounds and sized at 17 inches high by 10.5 inches wide by 10.5 inches in length, this is a robust, industrial-grade valve intended for installation by licensed plumbers or pipefitters in commercial and industrial piping systems.

This valve is designed for applications where stable, proportional pressure reduction is required across a range of process fluids. Its wide operating temperature range, from -40 degrees F to 400 degrees F, makes it suitable for both cold-service and elevated-temperature system installations. Typical installation scenarios include industrial process piping, HVAC hydronic systems, and fluid distribution lines where downstream pressure must be held within a defined reduced range.

Key Features

• Proportional control design delivers stable reduced pressure within the 6 to 18 psi output range
• Rated to 250 psi maximum working pressure
• Bronze body construction for corrosion resistance in fluid service applications
• 1-inch Female NPT end connection for standard pipe thread installation
• Wide operating temperature range: -40 degrees F to 400 degrees F
• Substantial 31-pound construction suited to permanent, fixed-pipe installations

Compatibility

Designed as an OEM-style pressure reducing valve for commercial and industrial piping systems requiring a 1-inch Female NPT connection and a reduced pressure output of 6 to 18 psi.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable plumbing codes, including the IPC where adopted. Isolate and depressurize the system fully before removing any existing valve or fitting. Ensure the valve is oriented per manufacturer flow-direction markings, and use appropriate thread sealant rated for the fluid and temperature range in service. Do not exceed the 250 psi maximum inlet pressure rating.