Description
Stainless Press Cap
Merit Stainless Press Caps are designed to close the end of compatible stainless steel piping using a press connection. The cap provides a permanent mechanical termination for the pipe end without requiring threads or welding at the fitting connection.
Merit Stainless Steel Press Fittings are designed for use with Schedule 5 or Schedule 10 Type 304/304L or 316/316L stainless steel pipe conforming to ASTM A-312. The stated working pressure range is from full vacuum to 300 PSI (20.7 bar) on Schedule 5 and Schedule 10 stainless steel pipe.
Product Highlights
- Stainless steel press cap
- Designed to close the end of compatible stainless steel pipe
- Press-connect installation
- Designed for Schedule 5 and Schedule 10 stainless steel pipe
- Compatible with Type 304/304L stainless steel pipe
- Compatible with Type 316/316L stainless steel pipe
- Designed for ASTM A-312 stainless steel pipe
- Working pressure range from full vacuum to 300 PSI
- Maximum stated working pressure: 300 PSI / 20.7 bar
- No threaded pipe joint required
- No fitting weld required
- Manufacturer approvals, dimensional information, tooling guidance, and compatibility documentation available below
Press Cap Design
A stainless press cap is used to terminate the end of a compatible stainless steel piping run. The pipe is inserted into the cap and the connection is completed using compatible press tooling.
The closed-end configuration provides a compact termination point for piping systems without the need to cut threads or weld a closure onto the pipe.
This fitting is useful for permanent pipe-end closures, future system extensions, and unused piping branches where a press-connected termination is required.
Compatible Stainless Steel Pipe
304 / 304L Stainless Steel
- Compatible pipe material identified by Merit
- Schedule 5 or Schedule 10 pipe
- Pipe must conform to ASTM A-312
- Verify pipe outside diameter and condition before installation
- Confirm chemical compatibility for the intended media
316 / 316L Stainless Steel
- Compatible pipe material identified by Merit
- Schedule 5 or Schedule 10 pipe
- Pipe must conform to ASTM A-312
- Suitable where the specified system requires 316/316L pipe
- Confirm chemical compatibility for the intended media
Technical Specifications
| Product Type | Press Cap |
|---|---|
| Material | Stainless Steel |
| Connection Type | Press |
| Configuration | Closed-End Cap |
| Compatible Pipe Material | 304/304L or 316/316L Stainless Steel |
| Compatible Pipe Schedule | Schedule 5 or Schedule 10 |
| Pipe Standard | ASTM A-312 |
| Working Pressure Range | Full Vacuum to 300 PSI |
| Maximum Working Pressure | 300 PSI / 20.7 bar |
| Primary Function | Closing the End of Compatible Stainless Steel Pipe |
Press Connection Benefits
Mechanical Press Installation
- Uses compatible press tooling
- No threaded joint required
- No fitting weld required
- Supports repeatable mechanical connections
- Suitable for compatible stainless steel piping systems
Pipe-End Termination
- Closes the end of a compatible pipe run
- Compact closed-end fitting design
- Useful for unused piping branches
- Suitable for future extension points where permitted
- Provides a press-connected alternative to threaded closures
Pressure Range
Merit states that its Stainless Steel Press Fittings have a working pressure range from full vacuum to 300 PSI (20.7 bar) when installed on compatible Schedule 5 or Schedule 10 stainless steel pipe.
System suitability should be confirmed based on fitting size, pipe material, temperature, conveyed media, seal compatibility, installation method, and the applicable Merit Stainless Press documentation.
Common Applications
Commercial & Mechanical Piping
- Stainless steel piping systems
- Unused pipe-end closures
- Branch terminations
- Equipment piping
- Mechanical system installations
Industrial & Process Service
- Process piping systems
- Compatible liquid-service applications
- Maintenance and retrofit work
- Temporary system layout provisions where permitted
- Applications requiring stainless press terminations
Installation & Selection Guidance
- Confirm the required nominal fitting size before ordering.
- Use only compatible Schedule 5 or Schedule 10 stainless steel pipe.
- Confirm pipe is Type 304/304L or 316/316L stainless steel as required.
- Verify that the pipe conforms to ASTM A-312.
- Confirm the fitting and pipe outside diameters are compatible.
- Inspect and properly prepare the pipe end before installation.
- Insert the pipe to the required depth before pressing.
- Use compatible press tooling and jaws approved for the Merit Stainless Press system.
- Follow the applicable pressing sequence and tooling instructions.
- Confirm system media compatibility using the Merit chemical compatibility chart.
- Verify that the full-vacuum-to-300-PSI working range is suitable for the intended system.
- Confirm a press cap is appropriate for the intended pipe-end termination.
- Review applicable approvals and submittal requirements before specifying the fitting.
- Installation should follow Merit instructions and applicable piping codes and project requirements.
Important Ordering Notes
- Product is a stainless steel press cap.
- Designed to close the end of compatible stainless steel pipe.
- Designed for Schedule 5 or Schedule 10 stainless steel pipe.
- Compatible pipe materials identified as 304/304L and 316/316L stainless steel.
- Compatible pipe must conform to ASTM A-312.
- Working pressure range is stated as full vacuum to 300 PSI / 20.7 bar.
- Confirm nominal fitting size before ordering.
- Verify pipe material, schedule, outside diameter, and condition before installation.
- Confirm media compatibility using the manufacturer chemical compatibility chart.
- Use compatible Merit Stainless Press tooling.
- Review approvals, dimensional information, tooling requirements, and submittals before installation.
Product Documents
Frequently Asked Questions
What is a stainless press cap used for?
It is used to close the end of a compatible stainless steel piping run using a press connection.
What pipe is this cap designed for?
Merit identifies the Stainless Press system for Schedule 5 or Schedule 10 Type 304/304L or 316/316L stainless steel pipe conforming to ASTM A-312.
What is the working pressure range?
The stated working pressure range is from full vacuum to 300 PSI (20.7 bar) on compatible Schedule 5 and Schedule 10 stainless steel pipe.
Does this fitting require welding?
No fitting weld is required for the press connection. The cap is mechanically pressed onto compatible stainless steel pipe using the appropriate tooling.
Does this cap use threads?
No. This cap uses a press connection rather than a threaded connection.
Can this fitting be used with both 304 and 316 stainless steel pipe?
The supplied Merit information identifies Type 304/304L and 316/316L stainless steel pipe as compatible when the pipe also meets the specified schedule and ASTM A-312 requirements.
What pipe schedules are compatible?
The supplied information identifies Schedule 5 and Schedule 10 stainless steel pipe.
Where can I find dimensions?
Use the Merit Stainless Press Dimensional Catalog in the Product Documents section above.
Where can I check chemical compatibility?
Use the Merit Stainless Press Chemical Compatibility Chart in the Product Documents section above.
Where can I find compatible press tooling?
Use the Merit Stainless Press Tooling document in the Product Documents section above.
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