2200 Series0 pages
2200 Series
0 to 800 psig Check Valves
Features
Technical Data
• Medium flow
• Single piece design
• Resilient o-ring
Body Construction Materials
O-ring Materials
Benefits
• Maintenance free
• Dependable
• Economical
Connection Sizes
Note: Proper filtration is recommended to prevent damage to sealing surfaces.
How it Works
Open
Flow passes smoothly over poppet head
with minimum turbulence and through the
fluted guide without restriction.
Closing
O-ring automatically establishes line of
contact with spherical seat to cushion
closing and insure perfect sealing.
Circle Seal Controls
2301 Wardlow Circle • Corona, CA 92880
Phone (951) 270-6200 • Fax (951) 270-6201
www.circlesealcontrols.com
Closed
O-ring only seals. Full pressure is carried by
metal-to-metal seat.
check valves
Operating Pressure
Proof Pressure
Cracking Pressure
Temperature Range
Brass, 316 stainless steel
Buna N, ethylene propylene, neoprene, silicone,
or Viton®
0 to 800 psig (55 bar)
1,200 psig (83 bar)
1 to 3 psig (0.07 to 0.21 bar)
−70° F to +450° F (−57° C to +232° C)
Based on o-ring & body material, see “How to Order”
1⁄8˝ to 1˝