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The VALUE COLLECTION 735004G is a 1-inch malleable iron pipe coupling rated for 300 psi on liquid and gas service and 150 psi on steam service. Built to Class 150 standards, this coupling joins two sections of threaded pipe in a straight run, maintaining a secure, leak-resistant connection under pressure. The galvanized finish provides corrosion resistance for use in exposed or moderately corrosive environments. This fitting is installed by licensed plumbers, pipefitters, and mechanical contractors working on gas distribution, compressed air, hydronic, or steam piping systems.
This coupling is suited for residential and light commercial piping applications where threaded malleable iron fittings are the specified connection method. Typical installs include natural gas supply lines, steam heating distribution, and industrial fluid lines operating within rated pressure limits. The galvanized finish makes it an appropriate choice for indoor and outdoor installations where bare iron would be subject to surface oxidation.
Designed as an OEM-style replacement or new-installation fitting compatible with standard 1-inch NPT threaded pipe systems in Class 150 malleable iron piping assemblies.
Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local mechanical and plumbing codes, including IFGC and IPC requirements where relevant. Shut off and depressurize the piping system completely before disassembling or installing any threaded fitting. Apply an appropriate thread sealant or PTFE tape rated for the service medium before making up the joint. Do not exceed the published pressure ratings for the intended service type.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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