Merit Brass
Stainless Steel Weld Cap
- SKU:
- SWSC
- Availability:
- Usually Ships Same Day
- Weight:
- 0.00 LBS
Description
Stainless Steel Weld Cap
Stainless Steel Weld Caps are designed to permanently close the end of stainless steel piping systems using a butt weld connection. Compatible with Schedule 10 and Schedule 40 pipe, these fittings provide corrosion resistance, dimensional consistency, and dependable long-term performance in commercial, industrial, and process piping applications.
Manufactured from premium stainless steel raw material and produced to recognized ASTM, ASME, ANSI, and MSS standards, these weld caps are well suited for food and beverage, chemical processing, water treatment, general process piping, and other demanding service environments.
Product Highlights
- Stainless steel butt weld end cap
- Designed to permanently close the end of a piping system
- Compatible with Schedule 10 and Schedule 40 piping
- Manufactured and tested to ASTM A403 and ASME SA403/SA403M
- Raw material conforms to ASTM A312
- Wall thicknesses conform to ANSI B16.9, ANSI B16.28, and MSS SP-43
- Precision-formed butt weld end for accurate fit-up
- Corrosion-resistant stainless steel construction
- Suitable for permanent welded piping systems
- Designed for commercial, industrial, and process applications
Technical Specifications
| Product Type | Butt Weld Cap |
|---|---|
| Material | Stainless Steel |
| Available Schedules | Schedule 10 & Schedule 40 |
| Connection Type | Butt Weld |
| Function | Permanent End-of-Line Closure |
| Raw Material Standard | ASTM A312 |
| Manufacturing / Testing Standard | ASTM A403 & ASME SA403/SA403M |
| Dimensional / Wall Thickness Standards | ANSI B16.9, ANSI B16.28 & MSS SP-43 |
| Primary Applications | Process Piping, Food & Beverage, Chemical Processing, Water Treatment & Industrial Piping |
Permanent End-of-Line Closure
A butt weld cap is used to permanently close the end of a compatible piping system. Once welded into place, the cap forms a secure end closure without the use of threaded or bolted components.
This configuration is commonly used where the piping termination is intended to remain closed and future disassembly is not required.
Butt Weld Connection
The cap features a precision-formed butt weld end designed for accurate fit-up with compatible stainless steel pipe before welding.
Proper welding creates a continuous connection between the cap and adjoining pipe while maintaining the integrity of the piping system.
Schedule 10 vs. Schedule 40
Schedule 10
- Lighter wall option for compatible piping systems
- Useful where lower wall thickness is appropriate
- Manufactured and tested to applicable ASTM and ASME requirements
- Confirm mating pipe schedule before ordering
Schedule 40
- Heavier wall than Schedule 10
- Suitable where greater wall thickness is required
- Manufactured and tested to applicable ASTM and ASME requirements
- Confirm mating pipe schedule before welding
Standards & Construction
These stainless steel weld caps are produced from raw material conforming to ASTM A312. Manufacturing and testing are performed in accordance with ASTM A403 and ASME SA403/SA403M.
Applicable wall thicknesses and dimensions conform to ANSI B16.9, ANSI B16.28, and MSS SP-43 for compatibility with standard stainless steel piping systems.
Common Applications
Process & Sanitary Systems
- Food and beverage processing
- Water treatment systems
- General process piping
- Commercial stainless steel piping
- Sanitary piping applications
Industrial & Chemical Service
- Chemical processing
- Industrial piping systems
- Mechanical equipment piping
- Corrosion-resistant piping assemblies
- Permanent end-of-line closures
Need Help With Butt Weld Fitting Selection?
Confirm the nominal pipe size, Schedule 10 or Schedule 40 wall thickness, stainless steel material requirements, and welding procedure before ordering.
Use the product documents below to review butt weld fitting dimensions and certification information.
Product Documents
Stainless Steel Butt Weld Dimensions
Use this dimensional reference to verify stainless steel butt weld fitting dimensions before ordering, fabrication, or installation.
- Reference dimensions for stainless steel butt weld fittings
- Useful for confirming nominal pipe size and cap dimensions
- Supports Schedule 10 and Schedule 40 fitting selection
- Recommended for checking dimensional compatibility before welding
Stainless Steel Certification Letter
Use this certification document for supporting information regarding the stainless steel butt weld fitting product line and applicable manufacturing requirements.
- Certification reference for stainless steel butt weld fittings
- Useful for project documentation and submittal review
- Supports verification of applicable product standards
- Recommended where certification documentation is required
Frequently Asked Questions
What is a butt weld cap?
A butt weld cap is a fitting designed to permanently close the end of a compatible piping system by welding directly to the pipe.
What schedules are available?
The supplied product information lists Schedule 10 and Schedule 40 compatibility.
What connection type is used?
These caps use a butt weld connection for permanent installation in compatible stainless steel piping systems.
What material standard applies to the raw material?
The raw stainless steel material conforms to ASTM A312.
What manufacturing and testing standards apply?
The caps are manufactured and tested in accordance with ASTM A403 and ASME SA403/SA403M.
What dimensional standards apply?
Applicable wall thicknesses and dimensions conform to ANSI B16.9, ANSI B16.28, and MSS SP-43.
Is a weld cap removable?
No. A butt weld cap creates a permanent welded closure. Removal would generally require cutting or otherwise modifying the piping system.
Can Schedule 10 and Schedule 40 caps be interchanged?
Do not assume interchangeability. Confirm actual wall thickness, mating pipe schedule, fitting dimensions, and welding requirements before installation.
Where can I find fitting dimensions?
Use the Stainless Steel Butt Weld Dimensions PDF in the Product Documents section above.
Is certification documentation available?
Yes. The Stainless Steel Certification Letter PDF is available in the Product Documents section above.
Important Ordering Notes
- Product type: Stainless Steel Butt Weld Cap.
- Designed for permanent end-of-line closure.
- Compatible with Schedule 10 and Schedule 40 piping.
- Raw material conforms to ASTM A312.
- Manufactured and tested to ASTM A403 and ASME SA403/SA403M.
- Applicable wall thicknesses and dimensions conform to ANSI B16.9, ANSI B16.28, and MSS SP-43.
- Confirm nominal pipe size and schedule before ordering.
- Verify mating pipe dimensions and welding compatibility before installation.
- Use welding procedures appropriate for the stainless steel material and piping system.
- Confirm pressure, temperature, media, and corrosion-resistance requirements before installation.
- Refer to both Product Documents for dimensional and certification information.
