Charman Inc.
150# Galvanized Malleable Iron Pipe Cap
- Availability:
- Usually in Stock – Ships Quickly
- Weight:
- 0.00 LBS
Description
150# Galvanized Malleable Iron Pipe Cap
150# galvanized malleable iron pipe caps close and protect the end of male-threaded pipe, pipe nipples, or compatible fittings. The female NPT connection threads over the pipe end to create a durable removable closure for commercial, industrial, plumbing, maintenance, and repair applications.
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 connection
- Designed to close a male-threaded pipe end
- Galvanized finish provides added corrosion resistance
- Removable threaded closure for service and maintenance access
- Compatible with galvanized steel pipe and threaded pipe nipples
- Available in nominal pipe sizes from 1/8" through 6"
- Suitable for commercial, industrial, plumbing, maintenance, and repair applications
Technical Specifications
| Material | Galvanized Malleable Iron |
|---|---|
| Pressure Class | 150# / Class 150 |
| Connection | Female NPT |
| Configuration | Threaded End Closure |
| Thread Standard | ASME B1.20.1 |
| Dimensional Standard | ANSI/ASME B16.3 |
| Finish | Galvanized |
| Fitting Type | Threaded Pipe Cap |
| Manufacturer | Charman Manufacturing |
| Available Sizes | 1/8" through 6" |
How a Galvanized Pipe Cap Works
The female NPT threads inside the cap engage the male NPT threads on the end of a pipe, nipple, valve, or compatible fitting. When tightened with an approved thread sealant, the cap provides a removable threaded closure that helps protect the open end and contain compatible piping media within the system.
Common Applications
Plumbing and Mechanical Systems
- Closing unused threaded outlets
- Temporary or permanent pipe-end closure
- Mechanical-room piping
- Galvanized steel pipe installations
- Water and utility piping
- 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 Malleable Iron Pipe Cap?
Our industrial PVF specialists can help confirm the required pipe size, pressure class, thread type, service conditions, material compatibility, application requirements, and product availability.
Frequently Asked Questions
What is a galvanized malleable iron pipe cap used for?
A threaded pipe cap closes the end of a male-threaded pipe, pipe nipple, valve, or compatible fitting. It can be removed later when access to the piping system is required.
Does this cap have female threads?
Yes. The cap has a female NPT connection designed to thread over a compatible male NPT pipe end.
How is a cap different from a plug?
A cap has female threads and fits over a male-threaded pipe end. A plug has male threads and installs inside a female-threaded opening.
What pressure class is this fitting?
This galvanized malleable iron pipe cap 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. Select the required size from the product options above.
Can this cap be used with galvanized steel pipe nipples?
Yes. It is designed for compatible male NPT-threaded galvanized steel pipe, pipe nipples, valves, and other approved threaded components.
Does the galvanized finish improve corrosion resistance?
Yes. The zinc-based galvanized finish provides additional corrosion resistance compared with an unfinished black fitting, although suitability still depends on the environment, piping media, temperature, and application requirements.
Can it be used for water, air, oil, gas, or steam?
It may be used in compatible water, compressed-air, oil, gas, 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 on the male NPT connection, selected for the piping media, pressure, temperature, applicable codes, and manufacturer recommendations.
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 cap has one female NPT connection and is designed for a male-threaded pipe end.
- Confirm the nominal size and thread type of the mating pipe, nipple, valve, or fitting before ordering.
- Use an approved thread sealant suitable for the piping media and operating conditions.
- Do not overtighten the cap, as excessive force can damage the threads or fitting.
- Confirm pressure, temperature, media compatibility, corrosion exposure, 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.
