Merit Brass
150# Stainless Steel Cap MSS SP114
- SKU:
- M416-M616
- Availability:
- Usually Ships Same Day
- Weight:
- 0.00 LBS
Description
150# Stainless Steel Cap MSS SP114
150# Stainless Steel Caps MSS SP114 are threaded fittings designed to close the end of a compatible male-threaded pipe or fitting. The cap configuration provides a compact removable end closure while maintaining the corrosion resistance, durability, and long service life associated with stainless steel piping components.
Available in 304 and 316 stainless steel, these fittings are manufactured as MSS SP-114 pattern fittings and are listed as low lead certified to NSF 61. Stainless steel construction helps resist corrosion, rust, scale, and contamination while providing dependable performance in commercial, industrial, water, and process piping systems.
Product Highlights
- 150# stainless steel threaded cap
- Designed to close the end of compatible male-threaded piping
- Available in 304 and 316 stainless steel grades
- MSS SP-114 pattern fitting
- Low lead certified to NSF 61
- Removable threaded end closure
- Corrosion-resistant stainless steel construction
- Helps prevent contamination from rust, scale, and small particles
- Resists corrosive attack from a wide range of industrial and chemical solutions and mixtures
- Maintains strength at elevated temperatures
- Designed for straightforward installation and removal
- Long service-life potential in compatible applications
Technical Specifications
| Product Type | Threaded Cap |
|---|---|
| Pressure Class | 150# |
| Material | Stainless Steel |
| Available Grades | 304 & 316 Stainless Steel |
| Pattern | MSS SP-114 |
| Connection Type | Female Threaded |
| Configuration | End Closure |
| Certification | Low Lead Certified NSF 61 |
| Primary Function | Closing the End of Male-Threaded Pipe or Fittings |
| Primary Applications | Commercial, Industrial, Water and Process Piping Systems |
Threaded Cap Construction
A threaded cap is designed to close the end of a compatible male-threaded pipe or fitting. The internal female thread allows the cap to be installed directly over the threaded end of the piping component.
Unlike a permanent welded closure, a threaded cap can be removed later when access to the piping system is required for maintenance, inspection, modification, or expansion.
Manufactured from 304 or 316 stainless steel, these caps provide corrosion resistance and dependable performance in compatible commercial, industrial, water, and process piping applications.
Why Choose a Stainless Steel Cap?
Removable End Closure
- Closes the end of male-threaded pipe
- Provides a removable threaded closure
- Useful for temporary or permanent line termination
- Allows future access to the piping system
- Suitable for unused or reserved piping connections
Corrosion Resistance
- Resists rust and scale formation
- Suitable for demanding piping environments
- Resists attack from many industrial and chemical solutions and mixtures
- Helps maintain cleaner process media
- Provides long service life compared with many alternative metals
Cap vs. Plug
Threaded Cap
- Female threaded connection
- Fits over a male-threaded pipe or fitting
- Typically closes the end of a piping run
- Provides a removable external closure
- Selected based on the male thread size being capped
Threaded Plug
- Male threaded connection
- Threads into a female-threaded opening
- Commonly closes ports, fittings, or equipment openings
- Provides an internal threaded closure
- Different connection configuration from a cap
304 vs. 316 Stainless Steel
304 Stainless Steel
304 stainless steel provides corrosion resistance for a wide range of general-purpose water, commercial, and industrial piping applications. It is commonly selected where dependable stainless steel performance is required without the additional corrosion resistance provided by 316 stainless steel.
316 Stainless Steel
316 stainless steel provides enhanced corrosion resistance for more aggressive environments and is commonly selected for applications involving chemicals, chlorides, process fluids, marine exposure, and other demanding service conditions.
Common Applications
Commercial & General Piping
- Water piping systems
- Commercial plumbing systems
- Mechanical piping installations
- End-of-line pipe closures
- Unused threaded pipe connections
Industrial & Process Applications
- Industrial process piping
- Chemical processing systems
- Water treatment applications
- Process fluid piping
- Corrosion-resistant threaded assemblies
Installation & Selection Guidance
- Confirm the nominal male thread size before ordering.
- Select 304 or 316 stainless steel based on the operating environment and required corrosion resistance.
- Verify that the mating male-threaded pipe or fitting is compatible with the cap.
- Confirm system pressure and temperature requirements before installation.
- Verify compatibility between the stainless steel fitting and the system media.
- Use appropriate thread sealant suitable for the piping material, media, pressure, and temperature.
- Avoid over-tightening threaded stainless steel connections.
- Confirm that the cap is suitable for the intended temporary or permanent closure application.
- Inspect the completed connection for leaks before placing the system into service.
- Installation should be completed in accordance with applicable piping codes and project specifications.
Product Documents
Merit Brass Heavy Pattern 150# Dimensions
Review dimensional information for Merit Brass stainless steel MSS pattern fittings, including applicable cap dimensions.
Common Pipe Diameters & Wall Thicknesses
Reference common pipe outside diameters and wall thicknesses when selecting compatible piping and threaded connection components.
Need Help Selecting a Stainless Steel Cap?
Our industrial PVF specialists can help review your pipe size, stainless steel grade, pressure requirements, application, and thread requirements before you order.
Frequently Asked Questions
What is a stainless steel threaded cap used for?
A threaded cap is used to close the end of a compatible male-threaded pipe or fitting.
What pressure class is this fitting?
This fitting is listed as a 150# stainless steel cap.
What stainless steel grades are available?
These caps are available in 304 and 316 stainless steel.
What pattern does this fitting conform to?
The fitting is identified as an MSS SP-114 pattern stainless steel fitting.
Is this stainless steel cap low lead certified?
Yes. The supplied product information identifies these fittings as low lead certified to NSF 61.
What connection does this cap use?
The cap uses an internal female threaded connection that installs over a compatible male-threaded pipe or fitting.
How is a cap different from a plug?
A cap has a female threaded connection and fits over a male-threaded component. A plug has a male threaded connection and installs into a female-threaded opening.
Can the cap be removed later?
Yes. The threaded design allows the cap to be removed later for inspection, maintenance, system modification, or access to the piping run.
What is the difference between 304 and 316 stainless steel?
Both grades provide strong corrosion resistance. 316 stainless steel generally provides additional resistance in more aggressive chemical, chloride, marine, and corrosive environments.
Where can I find fitting dimensions?
Use the Merit Brass Heavy Pattern 150# Dimensions document in the Product Documents section above.
Important Ordering Notes
- Product is a 150# stainless steel threaded cap.
- Available in 304 and 316 stainless steel grades.
- Manufactured as an MSS SP-114 pattern fitting.
- Low lead certified to NSF 61.
- Female threaded end-closure configuration.
- Confirm the nominal male thread size before ordering.
- Select the appropriate 304 or 316 stainless steel grade for the application.
- Verify thread compatibility with the mating pipe or fitting before installation.
- Confirm system pressure, temperature, and media compatibility before use.
- Refer to the Merit Brass dimensional documentation for applicable fitting dimensions.
