Midland Industries 48234 Pipe Nipple 4in Mpt Sch 40 Ss

Product Description

The MIDLAND INDUSTRIES 48234 is a welded pipe nipple designed for threaded pipe assemblies in demanding fluid and gas distribution systems. Constructed from 304 stainless steel with a Schedule 40 wall thickness, it delivers a pressure rating of 150 psi and conforms to ANSI B1.20.1 dimensional standards. The nipple measures 10 inches in length and 4 inches in diameter with 4-8 NPT male threads on both ends. Its welded construction and stainless steel material make it suitable for corrosive environments, high-moisture conditions, and applications where carbon steel would degrade. Licensed plumbers and pipefitters are the primary installers of this fitting in commercial and industrial piping systems.

This nipple is used in Schedule 40 threaded piping systems where a 4-inch male-to-male close extension is required. Typical applications include water treatment facilities, chemical processing lines, HVAC hydronic systems, and industrial plumbing installations. The 304 stainless steel alloy resists rust and mild chemical exposure, making it a common choice for food-grade, marine, and wet utility environments. At 7.55 pounds, the fitting is sized for full-port 4-inch line installations requiring a 10-inch run extension between two female-threaded components.

Key Features

• 304 stainless steel construction resists corrosion in wet and chemically active environments
• Schedule 40 wall thickness rated to 150 psi working pressure
• 4-8 thread form on both ends conforms to ANSI B1.20.1
• 10-inch length provides a fixed extension between two female-threaded fittings
• Welded construction for consistent wall integrity throughout the nipple body
• Suitable for Schedule 40 nipple assemblies in 4-inch diameter piping systems

Compatibility

Designed as an OEM-style replacement or new-installation component for Schedule 40 threaded 4-inch pipe systems using standard NPT female connections per ANSI B1.20.1.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable IPC and local plumbing codes. Shut off and depressurize the system completely before removing or installing any threaded pipe fitting. Apply an appropriate thread sealant or PTFE tape to the male threads before assembly and tighten to the fitting manufacturer's specification using a pipe wrench sized for 4-inch pipe. Do not over-torque stainless steel threads, as galling can occur and damage both the nipple and the mating fitting.