Charman Inc.
150# Black Malleable Iron Coupling – Female NPT
- Availability:
- Available to Ship Quickly
- Weight:
- 0.00 LBS
Description
150# Black Malleable Iron Pipe Coupling
150# black malleable iron pipe couplings are designed to join two male-threaded pipe ends of the same nominal size. Female NPT threads on both ends create a secure inline connection for black steel pipe used in commercial plumbing, industrial piping, compressed-air, natural-gas, water, oil, and approved steam applications.
Select the required nominal pipe size from the product options above. The selected variation determines the manufacturer item number, selling price, weight, carton quantity, and other size-specific product information.
Product Highlights
- 150# Class black malleable iron construction
- Female NPT connection on both ends
- Designed to connect two male-threaded pipe ends of the same size
- Provides a straight inline threaded pipe connection
- Manufactured to ANSI/ASME B16.3 dimensional standards
- Threads conform to ASME B1.20.1 requirements
- Durable black finish
- Compatible with standard threaded black steel pipe and nipples
- Available in nominal pipe sizes from 1/8" through 2-1/2"
- Suitable for commercial, industrial, repair, and maintenance applications
Technical Specifications
| Material | Black Malleable Iron |
|---|---|
| Pressure Class | 150# / Class 150 |
| Connection | Female NPT x Female NPT |
| Connection Sizes | Equal Size x Equal Size |
| Thread Standard | ASME B1.20.1 |
| Dimensional Standard | ANSI/ASME B16.3 |
| Finish | Black |
| Fitting Type | Standard Threaded Pipe Coupling |
| Manufacturer | Charman Manufacturing |
| Available Sizes | 1/8" through 2-1/2" |
How a Standard Pipe Coupling Works
A standard threaded pipe coupling has female NPT threads on both ends. Each male-threaded pipe end or pipe nipple is threaded into one side of the coupling, creating a straight connection between two pieces of pipe of the same nominal size. Proper thread engagement and an approved thread sealant help create a secure, leak-resistant connection.
Common Applications
Plumbing and Mechanical Systems
- Commercial plumbing systems
- Mechanical-room piping
- Black steel pipe installations
- Water distribution piping
- HVAC and equipment connections
- General repair and maintenance
Industrial and Utility Service
- Industrial process piping
- Compressed-air systems
- Natural-gas piping
- Oil and petroleum piping
- Fire-protection 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 Coupling?
Our industrial PVF specialists can help confirm the required pipe size, pressure class, thread type, material compatibility, application requirements, and product availability.
Frequently Asked Questions
What is a black malleable iron pipe coupling used for?
A black malleable iron pipe coupling is used to connect two male-threaded pipe ends of the same nominal size in a straight line.
Does this coupling have female threads on both ends?
Yes. This standard coupling has female NPT threads on both ends for connecting compatible male-threaded pipe, pipe nipples, or fittings.
Can this coupling connect two different pipe sizes?
No. This is a standard equal-size coupling. Both threaded connections are the same nominal pipe size. A reducing coupling is required when connecting two different pipe sizes.
What is the difference between a coupling and a reducing coupling?
A standard coupling connects two pipe ends of the same nominal size. A reducing coupling has different connection sizes and is used to transition from a larger pipe size to a smaller pipe size.
What pressure class is this fitting?
This black malleable iron coupling is manufactured as a 150# or Class 150 threaded fitting.
What sizes are available?
Available product variations range from 1/8" through 2-1/2" nominal pipe size. Select the required size from the product options above.
Can this coupling be used with black steel pipe nipples?
Yes. It is designed to connect compatible male NPT-threaded black steel pipe, pipe nipples, and other approved threaded components of the same nominal size.
Can this coupling 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 the pressure, temperature, media, code, and manufacturer specification requirements.
Should thread sealant be used during installation?
An approved pipe-thread sealant or thread tape should be selected based on the piping media, temperature, pressure, applicable codes, and manufacturer recommendations.
Is this coupling the same as a right-and-left coupling?
No. A standard coupling has conventional female NPT threads on both ends. A right-and-left coupling has opposing thread directions and requires compatible right-and-left threaded pipe ends or nipples.
Important Ordering Notes
- Select the required nominal pipe size before adding the product to your cart.
- This is an equal-size coupling with the same female NPT connection size on both ends.
- Use a reducing coupling when connecting two different nominal pipe sizes.
- The selected variation determines the Charman item number, price, weight, and carton quantity.
- Confirm the thread type and nominal size of both mating components before ordering.
- Confirm pressure, temperature, media compatibility, and application requirements before installation.
- Use an approved thread sealant suitable for the piping media and operating conditions.
- 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.
