Merit Brass 6506-550 Pipe Nipple 3/8 in Sch 80 316 316L Ss

Product Description

The MERIT BRASS 6506-550 is a seamless stainless steel pipe nipple designed for demanding fluid and gas piping applications. Manufactured from Grade 316/316L stainless steel, it delivers strong corrosion resistance in wet, chemical-exposed, and marine environments. The 3/8 inch pipe size and Schedule 80 wall thickness make it suitable for higher-pressure service compared to standard Schedule 40 fittings. This nipple is threaded on both ends and is typically installed by licensed plumbers, pipefitters, or industrial maintenance technicians working on process, mechanical, or utility piping systems.

This pipe nipple fits standard 3/8 inch NPT threaded piping systems. It is used in residential, commercial, and industrial installations where corrosion resistance is a priority, including chemical processing lines, marine plumbing, food-service equipment, and corrosive fluid transfer systems. The Schedule 80 wall rating makes it a reliable choice where system pressure or mechanical strength requirements exceed what lighter-wall nipples can handle.

Key Features

• Seamless construction eliminates weld seams for uniform wall strength throughout
• Grade 316/316L stainless steel provides superior resistance to chloride and chemical corrosion
• Schedule 80 wall thickness rated for higher-pressure service than Schedule 40
• 3/8 inch NPT threaded ends for standard pipe system integration
• Dual-grade 316/316L designation allows use in both standard and low-carbon weld-sensitive applications

Compatibility

Designed as an OEM-style replacement or new-installation component for 3/8 inch NPT threaded Schedule 80 stainless steel piping systems in plumbing, process, and mechanical applications.

Installation Notes

Installation is performed by a licensed plumber or pipefitter. Shut off system pressure and drain the line before removing or installing any threaded nipple. Apply an appropriate thread sealant or PTFE tape rated for stainless steel and the specific media being conveyed. Do not over-tighten threaded connections, as stainless steel threads can gall under excessive torque.