Usa Industrials ZUSA-PF-324 Hex Socket Pipe Plug 3/4 in

Product Description

The USA INDUSTRIALS ZUSA-PF-324 is a 3/4 inch hex socket pipe plug designed to cap and seal threaded pipe ends in fluid and gas distribution systems. Manufactured from 304 stainless steel, it connects via male NPT (MNPT) threads and carries a 150 psi working pressure rating. The hex socket drive allows installation and removal with standard hex keys, making it a practical choice in tight quarters where wrench clearance is limited. Plumbers, pipefitters, and mechanical contractors install this plug type in a wide range of piping applications where a clean, leak-free termination is required.

This plug is suited for residential and commercial piping systems where 304 stainless steel offers adequate corrosion resistance. Typical uses include capping unused branch outlets, blanking off test ports, and sealing pipe ends during pressure testing. The MNPT thread form meets ASME B1.20.1 standards, ensuring compatibility with standard NPT fittings across plumbing, process, and mechanical piping installations. The plug is rated for service from -50 degrees F to 400 degrees F, making it appropriate for hot and cold water, steam, and many process fluid lines.

Key Features

• 304 stainless steel construction provides corrosion resistance in wet and chemically active environments
• MNPT threaded connection conforms to ASME B1.20.1 for reliable sealing with standard NPT fittings
• 150 psi maximum working pressure rating suitable for typical plumbing and process piping service
• Hex socket drive allows torque application with a hex key in restricted-access locations
• Wide temperature range from -50 degrees F to 400 degrees F covers most commercial and industrial piping services
• Meets ASTM A351 material standards for cast austenitic stainless steel fittings

Compatibility

Designed as an OEM-style replacement and standard-service plug for 3/4 inch NPT threaded pipe systems using Schedule 150 fittings in plumbing, mechanical, and light process piping applications.

Installation Notes

Installation is performed by licensed plumbers or pipefitters following applicable IPC and ASME piping codes. Shut off system pressure and drain the line before removing or installing any threaded fitting. Apply an appropriate thread sealant or PTFE tape to the MNPT threads before installation to achieve a leak-free seal. Do not over-torque the hex socket drive, as stainless steel threads can gall if excessive force is applied.