Circle Valve Technologies Inc.
1533 Gehman Road
Harleysville, PA 19438

Toll Free:800-645-6733
Phone: 267-933-6300
Fax: 267-933-6305
Email: [email protected]
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Features & Benefits
  • Quick opening/positive closing
    Provides a wide range of adaptability
  • Large flow capacity
    The patented sealing principle effects complete leakproof closing under all pressure conditions
  • Zero leakage
    Compact, easy installation. Efficient inline piston reduces size and weight
  • Floating o-ring
    The streamlined poppet and full ports offer minimum restrictions.
Circle Seal Check Valve 200 Series
Unit of Measure
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Item #

Body Material

O-Ring Material

Connection Size

End Connections (Inlet/Outlet)

Cracking Pressure

Operating Temperature

Cv

220S-12PP N/A Carbon Steel N/A Teflon® N/A 1 1/2 in N/A Female NPT N/A up to 8 psig N/A -100 to 400 ºF N/A 23.2
220S-16PP N/A Carbon Steel N/A Teflon® N/A 2 in N/A Female NPT N/A up to 8 psig N/A -100 to 400 ºF N/A 51.0
220S-4PP-0.5 N/A Carbon Steel N/A Teflon® N/A 1/2 in N/A Female NPT N/A 0.5 psig N/A -100 to 400 ºF N/A 6.6
220S-4PP-1 N/A Carbon Steel N/A Teflon® N/A 1/2 in N/A Female NPT N/A 1 psig N/A -100 to 400 ºF N/A 6.6
233S-1PP N/A Carbon Steel N/A Neoprene N/A 1/8 in N/A Female NPT N/A 2 to 4 psig N/A -40 to 300 ºF N/A 1.60
253S-1PP N/A Carbon Steel N/A Neoprene N/A 1/8 in N/A Female NPT N/A 0.5 to 1 psig N/A -40 to 250 ºF N/A 1.60
233S-2PP N/A Carbon Steel N/A Neoprene N/A 1/4 in N/A Female NPT N/A 2 to 4 psig N/A -40 to 300 ºF N/A 2.70
253S-2PP N/A Carbon Steel N/A Neoprene N/A 1/4 in N/A Female NPT N/A 0.5 to 1 psig N/A -40 to 250 ºF N/A 2.70
233S-3PP N/A Carbon Steel N/A Neoprene N/A 3/8 in N/A Female NPT N/A 2 to 4 psig N/A -40 to 300 ºF N/A 3.50
253S-3PP N/A Carbon Steel N/A Neoprene N/A 3/8 in N/A Female NPT N/A 0.5 to 1 psig N/A -40 to 250 ºF N/A 3.50
233S-4PP N/A Carbon Steel N/A Neoprene N/A 1/2 in N/A Female NPT N/A 2 to 4 psig N/A -40 to 300 ºF N/A 6.6
253S-4PP N/A Carbon Steel N/A Neoprene N/A 1/2 in N/A Female NPT N/A 0.5 to 1 psig N/A -40 to 250 ºF N/A 6.6
233S-6PP N/A Carbon Steel N/A Neoprene N/A 3/4 in N/A Female NPT N/A 2 to 4 psig N/A -40 to 300 ºF N/A 10.3
253S-6PP N/A Carbon Steel N/A Neoprene N/A 3/4 in N/A Female NPT N/A 0.5 to 1 psig N/A -40 to 250 ºF N/A 10.3
233S-8PP N/A Carbon Steel N/A Neoprene N/A 1 in N/A Female NPT N/A 2 to 4 psig N/A -40 to 300 ºF N/A 12.5
253S-8PP N/A Carbon Steel N/A Neoprene N/A 1 in N/A Female NPT N/A 0.5 to 1 psig N/A -40 to 250 ºF N/A 12.5
233S-10PP N/A Carbon Steel N/A Neoprene N/A 1 1/4 in N/A Female NPT N/A 2 to 4 psig N/A -40 to 300 ºF N/A 23.2
253S-10PP N/A Carbon Steel N/A Neoprene N/A 1 1/4 in N/A Female NPT N/A 0.5 to 1 psig N/A -40 to 250 ºF N/A 23.2
233S-12PP N/A Carbon Steel N/A Neoprene N/A 1 1/2 in N/A Female NPT N/A 2 to 4 psig N/A -40 to 300 ºF N/A 23.2
253S-12PP N/A Carbon Steel N/A Neoprene N/A 1 1/2 in N/A Female NPT N/A 0.5 to 1 psig N/A -40 to 250 ºF N/A 23.2
233S-16PP N/A Carbon Steel N/A Neoprene N/A 2 in N/A Female NPT N/A 2 to 4 psig N/A -40 to 300 ºF N/A 51.0
253S-16PP N/A Carbon Steel N/A Neoprene N/A 2 in N/A Female NPT N/A 0.5 to 1 psig N/A -40 to 250 ºF N/A 51.0
253S-8PP-0.25 N/A Carbon Steel N/A Neoprene N/A 1 in N/A Female NPT N/A 0.25 psig N/A -40 to 250 ºF N/A 12.5
262S-1PP N/A Carbon Steel N/A Ethylene Propylene N/A 1/8 in N/A Female NPT N/A 2 to 4 psig N/A -65 to 300 ºF N/A 1.60
262S-2PP N/A Carbon Steel N/A Ethylene Propylene N/A 1/4 in N/A Female NPT N/A 2 to 4 psig N/A -65 to 300 ºF N/A 2.70
Unit of Measure
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