Charman Inc.
150# Black Malleable Iron Right & Left Coupling
- Availability:
- Available to Ship Quickly
- Weight:
- 0.00 LBS
Description
150# Black Malleable Iron Right & Left Coupling
150# black malleable iron right and left couplings are designed to join two specially threaded right-and-left pipe nipples or male-threaded pipe ends without rotating the connected piping. Opposing internal threads allow the coupling to draw both threaded ends together as the fitting is turned, making it useful for repairs, replacements, and installations where the surrounding piping cannot be rotated.
Select the required nominal pipe size from the product options above. The selected variation determines the manufacturer item number, selling price, weight, and other size-specific product information.
Product Highlights
- 150# Class black malleable iron construction
- Right-hand thread on one end and left-hand thread on the opposite end
- Designed to connect compatible right-and-left threaded pipe or nipples
- Allows piping to be joined without rotating the connected pipe
- Manufactured to ANSI/ASME B16.3 dimensional standards
- Threads conform to ASME B1.20.1 requirements
- Durable black finish
- Available in nominal pipe sizes from 1/2" through 2"
- Useful for piping repairs, replacements, and confined installations
Technical Specifications
| Material | Black Malleable Iron |
|---|---|
| Pressure Class | 150# / Class 150 |
| Connection | Female Right-Hand NPT x Female Left-Hand NPT |
| Thread Configuration | Opposing Right-Hand and Left-Hand Threads |
| Thread Standard | ASME B1.20.1 |
| Dimensional Standard | ANSI/ASME B16.3 |
| Finish | Black |
| Fitting Type | Right & Left Threaded Coupling |
| Manufacturer | Charman Manufacturing |
| Available Sizes | 1/2" through 2" |
How a Right & Left Coupling Works
A right-and-left coupling has a standard right-hand female thread on one end and a left-hand female thread on the other. When used with compatible right-and-left threaded pipe nipples or pipe ends, turning the coupling draws both pieces of pipe inward at the same time. This allows the connection to be assembled or separated without rotating the surrounding piping.
Common Applications
Repair and Maintenance
- Replacing damaged piping sections
- Repairing existing threaded piping
- Connecting piping that cannot be rotated
- Equipment replacement and maintenance
- Confined mechanical-room installations
- Retrofit piping projects
Industrial and Commercial
- Industrial piping systems
- Commercial plumbing systems
- HVAC and mechanical systems
- Compressed-air piping
- Natural-gas piping
- Water, oil, and approved steam service
Product Resources
Review the Charman product catalog, Class 150 specifications, and manufacturer warranty information before installation.
Need Help Selecting a Right & Left Coupling?
Our industrial PVF specialists can help confirm the required size, thread direction, compatible right-and-left nipple, pressure class, material compatibility, and product availability.
Frequently Asked Questions
What is a right-and-left coupling used for?
A right-and-left coupling is used to join compatible threaded pipe ends without rotating the connected piping. It is commonly used for repairs, replacements, and installations where the surrounding pipe cannot be turned.
How is a right-and-left coupling different from a standard coupling?
A standard coupling typically has right-hand female threads on both ends. A right-and-left coupling has a right-hand thread on one end and a left-hand thread on the other, allowing both connected pipe ends to be drawn together as the coupling is rotated.
Does this coupling require a special pipe nipple?
Yes. It must be used with compatible right-and-left threaded pipe nipples or pipe ends. One connection uses a standard right-hand thread and the opposite connection uses a left-hand thread.
Can a standard threaded pipe nipple be used on both ends?
No. A standard nipple has conventional right-hand threads. A proper right-and-left connection requires a compatible left-hand thread on one side of the assembly.
What pressure class is this fitting?
This black malleable iron right-and-left coupling is manufactured as a 150# or Class 150 threaded fitting.
What sizes are available?
Available product variations range from 1/2" through 2" nominal pipe size. Select the required size from the product options above.
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.
Important Ordering Notes
- Select the required nominal pipe size before adding the product to your cart.
- Right-and-left couplings require compatible right-hand and left-hand threaded pipe ends or nipples.
- Confirm the thread direction of both mating components before ordering.
- The selected variation determines the Charman item number, price, weight, and carton quantity.
- Confirm pressure, temperature, media compatibility, and application requirements before installation.
- 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.
