Circle Seal Valves
When closed, the resilient seal design of these adjustable pop-off and in-line relief valves prevent leakage. Sealing efficiency increases with increased pressure (up to cracking pressure). A metal-to-metal poppet stop supports spring load to prevent sticking. When system pressure overcomes spring force, the poppet opens. As pressure continues to rise, the variable orifice between the poppet and body increases, thereby allowing greater flow. When reseating, the resilient seal automatically establishes line of contact with spherical seat. The seal provides zero leakage at reseat.
For more information about this product, please contact us.
 |
Features
- Zero leakage
- Optional factory preset
- Accurate set pressure
- Wide range of cracking pressures
- Tamper-proof adjustment
- Maintenance-free service
- 100% seat leakage tested
Applications
- System over-pressure protection
- Storage tanks
- Freon recovery systems
- Medical equipment
- Refrigeration and heating equipment
- Measuring and dispensing pumps
- Communications equipment
- Process control instruments
- R&D pilot plants
- Vacuum pump safety
Additional information
The Circle Seal Valve Data Sheet is available
to download in Adobe Acrobat PDF format.
 Circle Seal Valve Data Sheet
Product Purchase
Contact our sales office to get a quote for the purchase of this product. When requesting a quote, please specify:
- Type of connections
- Seat material
- Operational specifications
To request more product information, contact us.
|
 |
- Port Sizes
- 1/8″ to 1-1/4″
-
- Operating Ranges
- Vacuum to 200 psig
-
-
- Cracking Pressure
- 0.5 to 150 psi
-
- Configuration
- Pop-off & In-line
-
- Connections
- Male Pipe
- Female Pipe
- U.S. & British Male Tube
- Female Tube
- Male Tube
- AN & MS
-
- Body Materials
- Aluminum
- Brass
- 316 Stainless Steel
-
- Seat Materials
- Buna N
- Ethylene Propylene
- Neoprene
- Teflon®
- Viton®
|
