Bk 521-800HC Malleable Black Iron Pipe Plug 1/8 in

Product Description

The BK 521-800HC is a 1/8-inch malleable black iron pipe plug used to cap or seal threaded pipe openings in gas, water, and general plumbing systems. Manufactured from black malleable iron meeting ANSI/ASTM A-197 material standards, this plug is individually flag tagged for easy identification. Threads conform to ANSI B1.20.1, and dimensional tolerances follow ANSI/ASME B16.14 and B16.39. Each fitting is 100 percent inspected and quality tested before leaving the factory. Plumbers, pipefitters, and HVAC technicians install this type of plug when blanking off unused branch openings or completing pipe assemblies.

This plug is suited for residential and light commercial plumbing, HVAC piping, and gas distribution applications where a 1/8-inch NPT threaded closing plug is required. Its malleable iron construction makes it appropriate for use in low-pressure pipe systems. The fitting is sold individually and is a standard item in plumbing rough-in and service work wherever NPT threaded black iron fittings are specified.

Key Features

• Malleable black iron construction per ANSI/ASTM A-197
• Threads conform to ANSI B1.20.1 for reliable NPT thread engagement
• Dimensions meet ANSI/ASME B16.14 and B16.39 standards
• 100 percent inspected and quality tested
• Individually flag tagged for easy job-site identification

Compatibility

Designed as an OEM-style replacement or new-installation fitting compatible with standard 1/8-inch NPT threaded black iron pipe systems.

Installation Notes

Installation is performed by licensed plumbers or pipefitters working on threaded black iron pipe systems. Shut off and depressurize the pipe system fully before installing or removing any threaded fittings. Use an appropriate pipe thread sealant or PTFE tape on the male threads in accordance with local plumbing and mechanical codes. Do not overtighten, as malleable iron fittings can crack under excessive torque.

Technical Specifications

• Material: Malleable Black Iron
• Material Standard: ANSI/ASTM A-197
• Thread Standard: ANSI B1.20.1
• Dimensional Standards: ANSI/ASME B16.14, B16.39
• Thread Size: 1/8 inch NPT
• Weight: 0.002 pounds
• Sold As: Each

Standard Information

• Brand: BK
• Manufacturer Part Number: 521-800HC