Value Collection 737000G 1/4 Inch Black Coupling Class 300

Product Description

The VALUE COLLECTION 737000G is a 1/4 inch black malleable iron threaded coupling rated for Class 300 service at up to 1500 psi. This fitting connects two sections of threaded pipe in a straight run and is designed for use in compressed air, gas distribution, hydraulic, and industrial piping systems. The black finish is applied over malleable iron for corrosion resistance in demanding service environments. Licensed plumbers, pipefitters, and HVAC technicians install this fitting in commercial and industrial applications where high-pressure rated connections are required.

This coupling is suited for 1/4 inch threaded piping runs in both above-ground and concealed installations. Its Class 300 pressure rating makes it appropriate for high-pressure gas lines, steam service, and compressed air distribution where standard Class 150 fittings are not adequate. The threaded end connections allow for tool-only assembly without soldering, welding, or specialty tooling beyond a pipe wrench and thread sealant.

Key Features

• Class 300 malleable iron construction rated to 1500 psi
• 1/4 inch threaded end connections for standard NPT pipe assembly
• Black finish provides corrosion resistance in industrial environments
• Straight coupling design for in-line pipe connections
• Compact size suitable for tight piping layouts

Compatibility

Designed as an OEM-style replacement or new-install fitting for 1/4 inch threaded malleable iron piping systems operating within Class 300 pressure ratings.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local codes and IFGC or ASME B31 requirements for the intended service. Shut off and depressurize the system fully before disassembly or installation. Apply an appropriate thread sealant or PTFE tape to male threads before assembly and tighten with a pipe wrench to proper engagement. Do not overtighten malleable iron fittings, as the material can crack under excessive torque.