Rwc 105 Black Steel Pipe Nipple 3x4 Inch Sch 40

Product Description

The RWC 105 is a black steel pipe nipple sized at 3 inches by 4 inches and manufactured to Schedule 40 wall thickness. It serves as a short threaded connector used to join pipe fittings, valves, or equipment in gas, steam, and liquid piping systems. The black steel construction provides durability in high-temperature and high-pressure applications. Licensed plumbers, pipefitters, and HVAC technicians install this type of nipple during new construction and retrofit projects where a rigid, threaded steel connection is required.

This nipple is suited for use in residential and commercial piping systems where black steel is the specified material. Common applications include natural gas distribution lines, steam heating systems, and industrial fluid transfer. Its Schedule 40 wall thickness meets standard pressure ratings for most mechanical room and boiler room installations. It is typically installed between flanges, tees, elbows, or valves to bridge short gaps in a piping run.

Key Features

• Schedule 40 wall thickness rated for standard gas, steam, and liquid service pressures
• Black steel construction suitable for high-temperature applications including gas and steam lines
• Threaded ends on both sides for connection to standard NPT fittings and valves
• 3-inch nominal diameter x 4-inch length provides a compact close-nipple solution

Compatibility

Designed as an OEM-style replacement or new-installation fitting compatible with standard 3-inch NPT threaded piping systems using Schedule 40 black steel pipe and fittings.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable codes such as the International Fuel Gas Code (IFGC) or International Plumbing Code (IPC). Shut off all gas or fluid supply and depressurize the line before removing or installing any threaded fitting. Apply an appropriate pipe thread sealant or PTFE tape rated for the intended service medium to all male threads before assembly. Do not overtighten threaded connections, as this can crack fittings or damage threads.

Technical Specifications

• Nominal Pipe Size: 3 inches
• Length: 4 inches
• Schedule: Schedule 40
• Material: Black Steel
• Thread Type: NPT (National Pipe Taper)

Standard Information

• Brand: RWC
• Manufacturer Part Number: 105