Circle Seal 220B-12PP Check Valve
200 Series: 0 to 3000 psig Check Valves
Features & Benefits:
- Quick opening / positive closing provides a wide range of adaptability
- Large flow capacity: the streamlined poppet and full ports offer minimum restriction to flow
- Zero leakage: the patented sealing principle effects complete leakproof closing under all pressure conditions
- Compact, easy installation
- Efficient inline piston reduces size and weight

Circle Seal 220B-12PP Check Valve Technical Data:
- Description: 1-1/2″ FNPT Check Valve, Brass/PTFE construction, rated up to 3000 psig at 300F
- Pressure Rating: 3000 psig
- Connections: 1-1/2″ FNPT
- Body Material: Brass
- Seal Material: PTFE
- Cracking Pressure: 8 psig
- Cv: 23.2
- External Leakage: Zero
- Internal Leakage: 0-50 psig = 5 cc/min max.; 50+ psig = 0.5 cc/min max.
- Temperature: -100F to +400F
- Repair Kit: K/220B-12PP
Dimensional Information:
- Dimension “A” (LENGTH): 5.35″
- Dimension “C” (HEX & ROUND): 2.75″
- Dimension “D” (DIAMETER): N/A
- Dimension “E” (WRENCH FLATS): N/A
- Weight: 5.34 lbs (approx.)

Notes:
- The poppet seal is PTFE, but the body seal in this valve is NEOPRENE, which may not be suitable for all applications. If this is a concern, we would recommend substituting a valve constructed in 303SS or 316SS instead: those valves have a PTFE poppet seal and a PTFE body seal.
- Cracking pressure is defined at which flow is 5 cc/min except for 220 series valves (with PTFE seals) for which flow is approximately 0.02 cfm.
- Standard connection type is FNPT; many alternative connection types are available upon special request (contact Sales for assistance).
- Standard cracking pressures are noted above; special cracking pressures may be available upon special request (contact Sales for assistance).
Please contact our Sales Department for assistance in selecting the right products for your application.
Product Catalog: Circle Seal Check Valves


