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The ASC Engineered Solutions 818900607 is a black malleable iron pipe cap designed to close off the end of a threaded pipe in piping systems. The fitting threads onto an open pipe end to create a secure, sealed termination point. At 1 inch in size and finished with a black coating, this cap suits gas piping, compressed air lines, and general plumbing applications where a durable iron fitting is required. Licensed plumbers and pipefitters install this type of cap during new construction, system modifications, or service work when a pipe end must be capped off temporarily or permanently.
This fitting is appropriate for residential and light commercial piping systems where 1-inch threaded connections are standard. Common applications include capping unused branch outlets on gas lines, shutting off dead legs in water distribution systems, and closing threaded pipe ends during pressure testing. The black coating is typical for fittings used in gas supply piping installations.
Designed as an OEM-style replacement fitting for standard 1-inch NPT threaded pipe connections in gas, air, and general plumbing piping systems.
This fitting is installed by a licensed plumber or pipefitter using a pipe wrench and thread sealant or PTFE tape on the male threads before assembly. Always shut off the gas supply or depressurize the piping system before removing or installing any threaded fitting. Installations on gas piping must comply with applicable local codes and IFGC requirements. Do not overtighten, as malleable iron fittings can crack under excessive torque.
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