Charman Inc.
150# Galvanized Malleable Iron Reducing Coupling
- Availability:
- Usually in Stock – Ships Quickly
- Weight:
- 0.00 LBS
Description
150# Galvanized Malleable Iron Reducing Coupling
150# galvanized malleable iron reducing couplings connect two male-threaded pipes, pipe nipples, valves, or compatible fittings of different nominal sizes in a straight line. The two female NPT openings provide a compact threaded transition between a larger connection and a smaller connection.
Select the required size combination from the product options above. Variations are listed as large connection × reduced connection. The selected variation determines the Charman item number, online selling price, weight, cost, and other size-specific product information.
Product Highlights
- 150# Class galvanized malleable iron construction
- Female NPT x reduced female NPT threaded connections
- Straight-through reducing coupling configuration
- Connects two different nominal pipe sizes
- Galvanized finish provides added corrosion resistance
- Compatible with galvanized steel pipe and threaded pipe nipples
- Wide range of reducing combinations from 1/4" x 1/8" through 6" x 5"
- Suitable for commercial, industrial, plumbing, maintenance, and repair applications
Technical Specifications
| Material | Galvanized Malleable Iron |
|---|---|
| Pressure Class | 150# / Class 150 |
| Connection | Female NPT x Reduced Female NPT |
| Configuration | Straight Reducing Coupling |
| Thread Standard | ASME B1.20.1 |
| Dimensional Standard | ANSI/ASME B16.3 |
| Finish | Galvanized |
| Fitting Type | Threaded Reducing Pipe Coupling |
| Manufacturer | Charman Manufacturing |
| Available Combinations | 1/4" x 1/8" through 6" x 5" |
How a Reducing Coupling Works
The larger female NPT opening connects to the larger male-threaded component, while the smaller female NPT opening connects to the reduced-size component. The fitting creates a straight threaded size transition without requiring a separate bushing or reducer.
Common Applications
Plumbing and Mechanical Systems
- Reducing threaded pipe runs
- Mechanical-room piping
- Galvanized steel pipe installations
- Water and utility piping
- Equipment connections
- General repair and maintenance
Industrial and Utility Service
- Industrial process piping
- Compressed-air systems
- Outdoor and damp-location piping
- Oil and petroleum piping
- Equipment and skid piping
- Approved low-pressure steam service
Product Resources
Review the Charman product catalog, galvanized malleable iron specifications, and manufacturer warranty information before installation.
Need Help Selecting a Galvanized Reducing Coupling?
Our industrial PVF specialists can help confirm both connection sizes, pressure class, thread type, service conditions, material compatibility, and product availability.
Frequently Asked Questions
What is a galvanized reducing coupling used for?
It joins two male-threaded components of different nominal pipe sizes in a straight line.
Does it have female threads on both ends?
Yes. Both openings have female NPT threads, with one opening larger than the other.
How are the sizes listed?
Variations are listed as the larger connection size followed by the reduced connection size.
What pressure class is this fitting?
This galvanized malleable iron reducing coupling is manufactured as a 150# or Class 150 threaded fitting.
Can it be used with galvanized steel pipe nipples?
Yes. It is designed for compatible male NPT-threaded galvanized steel pipe, pipe nipples, valves, and approved threaded components.
Does the galvanized finish improve corrosion resistance?
Yes. The galvanized finish provides added corrosion resistance compared with an unfinished black fitting, although suitability still depends on the environment and application.
Can it be used for water, air, oil, gas, or steam?
It may be used in compatible 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 on both male NPT connections, selected for the piping media and service conditions.
Important Ordering Notes
- Select the exact size combination before adding the product to your cart.
- The selected variation determines the Charman item number, price, weight, and cost.
- Variations are listed as large connection x reduced connection.
- Confirm both nominal sizes and thread types before ordering.
- Use an approved thread sealant suitable for the piping media and operating conditions.
- Do not overtighten the fitting, as excessive force can damage the threads or fitting body.
- Confirm pressure, temperature, media compatibility, corrosion exposure, and application requirements before installation.
- Support connected piping properly to avoid excessive mechanical stress on the coupling.
- 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.
