Charman Inc.
150# Black Malleable Iron Hex Bushing
- Availability:
- Usually in Stock – Ships Quickly
- Weight:
- 0.00 LBS
Description
150# Black Malleable Iron Hex Bushing
150# black malleable iron hex bushings reduce a female-threaded opening to a smaller female NPT connection. The larger male NPT thread installs into a compatible female fitting, valve, manifold, or equipment connection, while the smaller female NPT opening accepts a reduced-size male-threaded pipe, nipple, or fitting.
Select the required reducing size from the product options above. Sizes are listed with the larger male connection first and the smaller female connection second. The selected variation determines the Charman item number, online selling price, weight, cost, and other size-specific product information.
Product Highlights
- 150# Class black malleable iron construction
- Male NPT x reduced female NPT connection
- Hex-shaped body provides wrench flats for installation
- Reduces a larger female-threaded opening to a smaller pipe size
- Durable black finish
- Compatible with standard threaded black steel pipe and malleable iron fittings
- Available in a broad range of reducing combinations from 1/4" x 1/8" through 6" x 5"
- Suitable for commercial, industrial, maintenance, and repair applications
Technical Specifications
| Material | Black Malleable Iron |
|---|---|
| Pressure Class | 150# / Class 150 |
| Connection | Male NPT x Female NPT |
| Function | Reducing Bushing |
| Body Style | Hex |
| Thread Standard | ASME B1.20.1 |
| Finish | Black |
| Fitting Type | Threaded Hex Bushing |
| Manufacturer | Charman Manufacturing |
| Available Sizes | 1/4" x 1/8" through 6" x 5" |
How a Hex Bushing Works
The larger male NPT end threads into a matching female-threaded opening. The smaller female NPT opening then accepts a reduced-size male-threaded pipe, pipe nipple, valve, gauge, or fitting. The external hex body provides flat wrenching surfaces for controlled tightening and removal.
Common Applications
Plumbing and Mechanical Systems
- Reducing threaded fitting outlets
- Connecting smaller pipe or nipples
- Gauge and instrument connections
- Mechanical-room piping
- Black steel pipe installations
- General repair and maintenance
Industrial and Utility Service
- Industrial process piping
- Compressed-air systems
- Natural-gas piping
- Water and utility piping
- Oil and petroleum piping
- Approved low-pressure steam service
Product Resources
Review the Charman product catalog, Class 150 specifications, and manufacturer warranty information before installation.
Need Help Selecting a Black Malleable Iron Hex Bushing?
Our industrial PVF specialists can help confirm the larger male size, reduced female size, pressure class, thread type, material compatibility, application requirements, and product availability.
Frequently Asked Questions
What is a black malleable iron hex bushing used for?
A hex bushing reduces a larger female-threaded opening to a smaller female NPT connection so a reduced-size male-threaded pipe, nipple, valve, gauge, or fitting can be installed.
Which size is listed first?
The larger male NPT size is listed first, followed by the smaller female NPT size. For example, a 1" x 1/2" bushing has a 1" male thread and a 1/2" female opening.
Why does the bushing have a hex-shaped body?
The hex body provides flat wrenching surfaces for controlled installation, tightening, and removal.
What pressure class is this fitting?
This black malleable iron hex bushing is manufactured as a 150# or Class 150 threaded fitting.
Can this bushing be used with black steel pipe?
Yes. It is designed for compatible NPT-threaded black steel pipe, pipe nipples, malleable iron fittings, valves, and equipment connections.
Can it be used for gas, water, oil, air, or steam?
It may be used in compatible gas, water, oil, compressed-air, steam, and general-service systems when the application remains within applicable pressure, temperature, media, code, and manufacturer requirements.
Should thread sealant be used?
Use an approved pipe-thread sealant or thread tape selected for the piping media, pressure, temperature, applicable codes, and manufacturer recommendations.
How do I choose the correct size?
Match the larger male thread to the female opening being reduced, then select the smaller female opening needed for the downstream pipe, nipple, valve, gauge, or fitting.
Can a hex bushing be removed later?
Yes. The hex body provides a wrenching surface for later removal, provided the fitting remains accessible and has not been damaged or permanently secured.
Important Ordering Notes
- Select the required reducing combination before adding the product to your cart.
- The first size is the larger male NPT connection; the second size is the smaller female NPT connection.
- The selected variation determines the Charman item number, price, weight, and cost.
- Confirm both nominal pipe sizes and thread types before ordering.
- Use an approved thread sealant suitable for the piping media and operating conditions.
- Confirm pressure, temperature, media compatibility, and application requirements before installation.
- Do not over-tighten the bushing, as excessive torque may damage the threads or mating fitting.
- Installation should be completed by qualified personnel and comply with applicable codes and standards.
- Manufacturer warranty coverage is subject to the terms, limitations, and exclusions in the linked warranty document.
