OEM Cap, 4 in, NPT Threaded, Malleable Iron

The APPROVED VENDOR is a medium-pressure threaded pipe cap used to seal the end of a 4-inch NPT pipe in industrial piping systems. It is commonly applied in water, gas, and oil lines across machining, HVAC, and material handling facilities to close off unused outlets or terminate a line.

The APPROVED VENDOR cap has a 4-inch NPT threaded connection and is made of malleable iron. It is designed for medium-pressure applications and is identified by manufacturer part number . This fitting provides a durable, corrosion-resistant seal for terminating threaded pipe runs.

3G Electric supplies the APPROVED VENDOR cap to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this malleable iron pipe cap.

To install the APPROVED VENDOR cap, apply pipe thread sealant or PTFE tape to the male NPT threads of the pipe. Hand-tighten the cap onto the pipe end, then use a pipe wrench for a final quarter-turn to achieve a leak-free seal. Avoid overtightening to prevent damage to the malleable iron.