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The VALUE COLLECTION G300 20 is a malleable iron threaded pipe end cap sized at 3/4 inch, used to close off the end of a threaded pipe run in gas, liquid, or steam systems. Rated at 300 psi for liquid and gas service and 150 psi for steam, it meets ANSI/ASME B1.20.1 threading standards. The galvanized finish provides corrosion resistance in exposed or damp environments. Plumbers, pipefitters, and HVAC technicians install this fitting when capping unused branch outlets, service ports, or pipe terminations. The malleable iron construction allows the fitting to flex under stress without cracking, making it well suited for installations subject to vibration or thermal cycling.
This end cap is appropriate for residential and light commercial piping applications including natural gas distribution, propane lines, hydronic heating, compressed air, and low-pressure steam systems. It is installed on 3/4 inch NPT-threaded pipe ends and is commonly used during system commissioning to pressure-test a line or permanently cap off an unused port. The Class 150 rating makes it a standard choice for typical building piping systems. Sold individually; minimum order quantity is 2 pieces.
Designed as a Class 150 OEM-style replacement or new-installation end cap for 3/4 inch NPT-threaded malleable iron pipe systems in gas, liquid, and low-pressure steam service.
Installation is performed by licensed plumbers or pipefitters. Shut off and depressurize the pipe system completely before threading on the cap. Apply an appropriate thread sealant or tape rated for the service medium before making up the connection. Verify the completed installation with a pressure test in accordance with applicable local codes and IFGC or IPC requirements before returning the system to service.
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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