Midland Metal 28221L Reducing Hex Nipple 3/8x1/8 Mnpt Brass

Product Description

The MIDLAND METAL 28221L is a brass reducing hex nipple designed to connect two different pipe sizes within a threaded piping system. It transitions from a 3/8-inch male NPT connection to a 1/8-inch male NPT connection, allowing technicians to reduce line size without additional adapters. Rated to 125 psi and suitable for temperatures from -65 degrees F to 250 degrees F, this fitting handles a broad range of service conditions. Machined from solid brass, it delivers reliable thread engagement and corrosion resistance across compatible pipe materials. Licensed plumbers and HVAC technicians are the primary installers for this type of fitting.

This reducing hex nipple is suited for residential and light commercial plumbing, HVAC, and gas distribution applications where a threaded size reduction is required in a compact, inline form. The hex body allows standard wrench engagement for easy installation and removal. It is compatible for use with brass, bronze, copper, steel, aluminum, and iron pipe as stated by the manufacturer.

Key Features

• Reduces from 3/8-inch MNPT to 1/8-inch MNPT in a single inline fitting
• Hex body profile accepts standard open-end or adjustable wrench for secure makeup
• Rated to 125 psi working pressure
• Temperature range of -65 degrees F to 250 degrees F
• Solid brass construction resists corrosion in wet and gas service environments
• Compact length of 1.11 inches minimizes space requirements in tight installations

Compatibility

Designed for use with brass, bronze, copper, steel, aluminum, and iron pipe. Suitable as a standard reducing hex nipple in threaded piping systems requiring a 3/8-inch to 1/8-inch MNPT transition.

Installation Notes

Installation is typically performed by a licensed plumber or HVAC technician. Always depressurize and isolate the line before disassembling or installing any threaded fitting. Apply an approved thread sealant or PTFE tape to male threads per local code requirements before makeup. Tighten using a wrench on the hex body only — do not use pipe wrenches on finished brass surfaces where avoidable.

Technical Specifications

• Material: Brass
• Connection Size 1: 3/8 inches
• Connection Size 2: 1/8 inches
• Connection Type: MNPT x MNPT
• Thread Size: 3/8-18 x 1/8-27
• Pressure Rating: 125 psi
• Temperature Rating: -65 to 250 degrees F
• Hex Size: 0.68 inches
• Length: 1.11 inches
• Weight: 0.060 pounds
• Fitting Type: Reducing Hex Nipple

Standard Information

• Brand: MIDLAND METAL
• Manufacturer Part Number: 28221L