Charman Inc.
150# Galvanized Malleable Iron Union
- Availability:
- Usually in Stock – Ships Quickly
- Weight:
- 0.00 LBS
Description
150# Galvanized Malleable Iron Union
150# galvanized malleable iron unions provide a removable threaded connection between two sections of pipe, pipe nipples, valves, or compatible fittings. The three-piece design allows the piping connection to be separated for maintenance, replacement, inspection, or equipment service without rotating the connected piping.
Select the required nominal pipe size from the product options above. 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 threaded connections on both ends
- Three-piece union design for removable piping connections
- Allows disassembly without rotating connected pipe
- Galvanized finish provides added corrosion resistance
- Suitable for equipment, valve, and maintenance connections
- Available in nominal pipe sizes from 1/8" through 6"
- Designed for commercial, industrial, plumbing, and repair applications
Technical Specifications
| Material | Galvanized Malleable Iron |
|---|---|
| Pressure Class | 150# / Class 150 |
| Connection | Female NPT x Female NPT |
| Configuration | Three-Piece Threaded Union |
| Thread Standard | ASME B1.20.1 |
| Dimensional Standard | ANSI/ASME B16.3 |
| Finish | Galvanized |
| Fitting Type | Threaded Pipe Union |
| Manufacturer | Charman Manufacturing |
| Available Sizes | 1/8" through 6" |
How a Threaded Union Works
Each female NPT end connects to a compatible male-threaded pipe, nipple, valve, or fitting. The center union nut draws the two union halves together to create a removable joint. Loosening the union nut allows the connection to be separated without turning the connected piping.
Common Applications
Plumbing and Mechanical Systems
- Removable valve connections
- Pump and equipment connections
- Mechanical-room piping
- Galvanized steel pipe installations
- Water and utility piping
- Maintenance and repair access
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 Union?
Our industrial PVF specialists can help confirm the required pipe size, pressure class, thread type, service conditions, material compatibility, installation requirements, and product availability.
Frequently Asked Questions
What is a galvanized union used for?
A threaded union creates a removable connection between two male-threaded piping components, allowing the joint to be separated for maintenance or replacement.
Does this union have female threads on both ends?
Yes. Both ends have female NPT threads and connect to compatible male-threaded pipe, nipples, valves, or fittings.
How is a union different from a coupling?
A coupling joins two male-threaded components but normally requires piping to be rotated for removal. A union can be separated by loosening the center nut without rotating the connected piping.
What pressure class is this fitting?
This galvanized malleable iron union is manufactured as a 150# or Class 150 threaded fitting.
What sizes are available?
Available product variations range from 1/8" through 6" nominal pipe size.
Can it be used with galvanized steel pipe and fittings?
Yes. It is designed for compatible NPT-threaded galvanized pipe, nipples, valves, fittings, and approved equipment connections.
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, piping media, temperature, and application.
Should thread sealant be used?
Use an approved pipe-thread sealant or thread tape on the male NPT connections entering each end of the union. Do not apply sealant to the union seat unless directed by the manufacturer.
Important Ordering Notes
- Select the required nominal pipe size before adding the product to your cart.
- The selected variation determines the Charman item number, price, weight, and cost.
- This union has female NPT connections on both ends.
- Confirm the nominal size and thread type of both mating components before ordering.
- Use an approved thread sealant suitable for the piping media and operating conditions.
- Do not overtighten the union nut or threaded ends, as excessive force can damage the union.
- Confirm pressure, temperature, media compatibility, corrosion exposure, and application requirements before installation.
- Support connected piping properly to avoid excessive mechanical stress on the union.
- 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.
