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The VALUE COLLECTION MDB300 20-5 is a threaded malleable iron end cap with a black finish, designed to close off the open end of a 3/4-inch threaded pipe. Rated at Class 150 with a liquid and gas pressure rating of 300 psi, it meets ANSI/ASME B1.20.1 and ASME B16.3 standards. The malleable iron construction provides reliable strength and ductility in piping systems subject to moderate pressure and mechanical stress. This end cap is sold in a package quantity of five, making it practical for jobs requiring multiple closures on a single service call or installation project.
This end cap is suited for use in residential and light commercial plumbing, HVAC piping, and low-pressure gas distribution systems where Schedule 40 threaded fittings are specified. It is a standard choice when capping off branch lines, decommissioning unused ports, or closing pipe ends during system testing and commissioning. The black finish is typical of gas piping applications, and the threaded connection type is compatible with NPT-threaded pipe and fittings commonly used by plumbers and pipefitters in both new construction and retrofit work.
Designed as a standard-thread end cap for use with 3/4-inch NPT Schedule 40 threaded pipe and fittings in plumbing, HVAC, and low-pressure gas piping systems.
Installation is typically performed by licensed plumbers or pipefitters in accordance with the International Plumbing Code or International Fuel Gas Code as applicable. Shut off and depressurize the pipe system fully before installing or removing any threaded fittings. Apply an appropriate pipe thread sealant or PTFE tape to the male threads before engagement, and tighten using a pipe wrench to achieve a proper seal without over-torquing the fitting. Inspect for leaks after restoring system pressure.
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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