Merit Brass
Stainless Press Flange Adapter Van Stone
- SKU:
- P6EVSF
- Availability:
- Usually Ships Same Day
- Weight:
- 0.00 LBS
Description
Stainless Press Flange Adapter - Van Stone
Merit Stainless Press Van Stone Flange Adapters are designed to transition compatible stainless steel press piping to a flanged connection. The Van Stone-style configuration provides a press connection on the pipe side with a rotating flange arrangement that helps simplify bolt-hole alignment during installation.
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 Van Stone flange adapter
- Press x flanged connection configuration
- Transitions stainless press piping to a bolted flange connection
- Van Stone-style flange arrangement
- Rotating flange helps simplify bolt-hole alignment
- 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
- Manufacturer approvals, dimensional information, tooling guidance, and compatibility documentation available below
Technical Specifications
| Product Type | Press Flange Adapter |
|---|---|
| Style | Van Stone |
| Material | Stainless Steel |
| Connection Configuration | Press x Flange |
| Press Connection | Stainless Press |
| Flange Connection | Bolted Flange |
| 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 | Transitioning Stainless Press Piping to a Flanged Connection |
Van Stone Flange Adapter Design
A Van Stone flange adapter provides a press connection on the piping side and a flanged connection for joining valves, equipment, pumps, vessels, or other flanged components.
The Van Stone-style arrangement allows the flange to rotate independently for bolt-hole alignment before the connection is tightened. This can simplify installation, particularly where mating flange orientation is fixed.
The press side connects to compatible stainless steel pipe using approved Merit Stainless Press tooling, while the flange side uses a gasket and bolted connection appropriate for the mating flange and system requirements.
Why Choose a Van Stone Flange Adapter?
Press-to-Flange Transition
- Connects stainless press piping to flanged equipment
- Provides a bolted mechanical connection
- Useful for valves, pumps, and equipment connections
- Combines press and flange connection methods
- Can eliminate additional threaded or welded transition fittings
Van Stone Alignment
- Rotating flange supports bolt-hole alignment
- Useful when mating flange orientation is fixed
- Simplifies final positioning before bolting
- Supports serviceable flange connections
- Suitable for compatible mechanical piping systems
Van Stone vs. Fixed Flange Adapter
Van Stone Flange Adapter
- Rotating flange arrangement
- Allows bolt-hole alignment after pipe positioning
- Useful where installation flexibility is important
- Press connection on the pipe side
- This product configuration
Fixed Flange Adapter
- Flange orientation is fixed to the fitting body
- Bolt-hole position must be aligned during installation
- Provides the same general press-to-flange transition
- May require more precise rotational positioning
- Different flange arrangement from a Van Stone adapter
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 dimensions 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
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 used on compatible Schedule 5 or Schedule 10 stainless steel pipe.
Final system suitability also depends on the selected flange class, gasket, bolting, mating flange, operating temperature, media, and other system requirements.
Common Applications
Commercial & Mechanical Piping
- Valve connections
- Pump connections
- Mechanical equipment
- Flanged piping transitions
- Serviceable piping connections
Industrial & Process Service
- Process piping systems
- Equipment nozzles
- Flanged instrumentation assemblies
- Compatible utility piping
- Applications requiring press-to-flange transitions
Installation & Selection Guidance
- Confirm the required nominal press and flange size before ordering.
- Verify the required flange class and dimensional pattern.
- Use only compatible Schedule 5 or Schedule 10 stainless steel pipe on the press connection.
- Confirm pipe is Type 304/304L or 316/316L stainless steel as required.
- Verify that the stainless steel pipe conforms to ASTM A-312.
- Inspect and properly prepare the pipe end before installation.
- Insert the pipe to the required depth before pressing.
- Use compatible press tooling approved for the Merit Stainless Press system.
- Rotate the Van Stone flange as needed to align bolt holes with the mating flange.
- Use the correct gasket for the mating flange, media, pressure, and temperature.
- Use appropriate flange bolting and tighten according to applicable installation requirements.
- Avoid using flange bolts to pull misaligned piping into position.
- Support connected piping and equipment to prevent excessive load on the adapter.
- Confirm system media compatibility using the Merit chemical compatibility chart.
- Verify that the fitting, flange, gasket, and bolting are suitable for the intended service.
Product Documents
Merit Stainless Press Approvals
Review applicable approvals and certifications for the Merit Stainless Press fitting system.
Merit Stainless Press Benefits & Features
Review manufacturer information covering key benefits and features of the Stainless Press system.
Merit Stainless Press Dimensional Catalog
Review fitting dimensions, available sizes, and product-specific dimensional information.
Merit Stainless Press Chemical Compatibility Chart
Review chemical compatibility information before selecting fittings for the intended system media.
Merit Stainless Press FAQs
Review manufacturer answers to frequently asked questions about the Merit Stainless Press system.
Merit Stainless Press Handout
Review the manufacturer overview of the Stainless Press product line and system features.
Merit Stainless Press Linecard
Review the available Merit Stainless Press product offering.
Merit Stainless Press Submittals
Review technical submittal information for the Merit Stainless Press fitting system.
Merit Stainless Press Tooling
Review compatible tooling information and pressing requirements before installation.
150# & 300# Flange Dimensional Specifications
Review dimensional information for applicable 150# and 300# flange patterns.
Pipe Chart: Common Diameters & Wall Thicknesses
Reference common pipe diameters and wall thicknesses when reviewing Schedule 5 and Schedule 10 stainless steel pipe.
Need Help Selecting a Stainless Press Van Stone Flange Adapter?
Our industrial PVF specialists can help review your press size, flange size and class, stainless steel grade, pipe schedule, gasket requirements, working pressure, media compatibility, and tooling requirements before you order.
Frequently Asked Questions
What is a stainless press Van Stone flange adapter used for?
It is used to transition compatible stainless steel press piping to a bolted flange connection for valves, pumps, equipment, and other flanged components.
What does Van Stone mean?
A Van Stone-style flange arrangement allows the flange to rotate for bolt-hole alignment rather than being permanently fixed in one rotational position.
Why is a rotating flange useful?
It allows the bolt holes to be aligned with the mating flange after the pipe and adapter have been positioned, which can simplify installation.
What pipe is this adapter 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 stated working pressure range?
The supplied Merit information states a working pressure range from full vacuum to 300 PSI (20.7 bar) on compatible Schedule 5 and Schedule 10 stainless steel pipe.
Does the press side require welding?
No. The press side is mechanically connected to compatible stainless steel pipe using appropriate Merit Stainless Press tooling.
Does the flange connection require a gasket?
A compatible flange gasket is generally required between mating flange faces. The gasket must be selected for the flange type, media, pressure, and temperature of the system.
Where can I verify the available adapter sizes?
Use the Merit Stainless Press Dimensional Catalog in the Product Documents section above.
Where can I verify flange dimensions?
Use the 150# & 300# Flange Dimensional Specifications document 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.
Important Ordering Notes
- Product is a stainless steel press Van Stone flange adapter.
- Provides a press-to-flange transition.
- Van Stone-style rotating flange assists with bolt-hole alignment.
- 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 press size, flange size, and flange class before ordering.
- Verify mating flange dimensions and bolt pattern.
- Select the proper gasket and bolting for the intended application.
- Confirm media compatibility using the manufacturer chemical compatibility chart.
- Use compatible Merit Stainless Press tooling.
- Review approvals, dimensional information, flange specifications, tooling requirements, and submittals before installation.
