Bmi Usa 11530 Galvanized Pipe Nipple 3/4 X 3 Inch Npt Sch 40

Product Description

The BMI USA 11530 is a Schedule 40 galvanized steel pipe nipple designed to connect two female-threaded fittings in piping systems carrying water, air, or steam. It measures 3/4 inch nominal pipe size and 3 inches in overall length, including the male NPT threads at both ends. Manufactured from ASTM A53/A106/A333 ERW welded Grade A pipe, the hot-dip galvanized finish provides corrosion resistance in wet, pressurized, and steam service environments. Threads conform to ASME B1.20.1 NPT standards and dimensions comply with ASTM A733. Licensed plumbers and pipefitters install this fitting in fire protection, mechanical, and general plumbing piping systems.

This nipple is suited for residential and commercial piping applications where galvanized steel is specified, including water distribution, compressed air lines, steam supply, and fire sprinkler systems rated at 150 PSI. The UL and FM listings make it compatible with fire protection system installations requiring listed components. Its short, fixed length makes it a direct spacer or extension between two female-threaded fittings such as couplings, valves, or tees.

Key Features

• Male NPT threads at both ends for connection to standard female-threaded fittings
• Galvanized finish resists rust and corrosion in water, air, and steam service
• Schedule 40 ERW welded Grade A pipe construction per ASTM A53/A106/A333
• Dimensions per ASTM A733 and threads per ASME B1.20.1 NPT
• UL and FM listed for use in fire protection piping systems
• 150 PSI pressure rating suitable for standard mechanical and plumbing service

Compatibility

Designed as an OEM-style galvanized pipe nipple for use in Schedule 40 threaded piping systems rated at 150 PSI, compatible with standard female NPT fittings, couplings, valves, and tees in water, air, steam, and fire protection applications.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable IPC and IFGC code requirements. Apply pipe thread sealant or PTFE tape to the male NPT threads before assembly; do not use sealant on the first thread. De-pressurize and drain the piping system fully before removing or installing any threaded fitting. Use a properly sized pipe wrench and do not over-tighten, as excessive force can crack or distort threaded fittings.

Technical Specifications

• Nominal Pipe Size: 3/4 inch
• Overall Length: 3 inches
• Thread Type: Male NPT (ASME B1.20.1)
• Schedule: 40
• Pipe Construction: ERW Welded Grade A
• Material Standard: ASTM A53/A106/A333
• Dimensional Standard: ASTM A733
• Finish: Galvanized
• Pressure Rating: 150 psi
• Certifications: UL Listed, FM Approved

Standard Information

• Brand: BMI USA
• Manufacturer Part Number: 11530