Circle Valve Technologies Inc.
307 Derstine Ave, Suite 204
Lansdale, PA 19446

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

233A-2PP N/A Aluminum 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
253A-2PP N/A Aluminum 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
233A-4PP N/A Aluminum 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
253A-4PP N/A Aluminum 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
233A-6PP N/A Aluminum 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
253A-6PP N/A Aluminum 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
262A-1PP N/A Aluminum 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
262A-2PP N/A Aluminum 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
262A-4PP N/A Aluminum N/A Ethylene Propylene N/A 1/2 in N/A Female NPT N/A 2 to 4 psig N/A -65 to 300 ºF N/A 6.6
262A-6PP N/A Aluminum N/A Ethylene Propylene N/A 3/4 in N/A Female NPT N/A 2 to 4 psig N/A -65 to 300 ºF N/A 10.3
K220T-1PP N/A 303 Stainless Steel N/A Teflon® N/A 1/8 in N/A Female NPT N/A up to 8 psig N/A -320 to 165 ºF N/A 1.60
K220T-2PP N/A 303 Stainless Steel N/A Teflon® N/A 1/4 in N/A Female NPT N/A up to 8 psig N/A -320 to 165 ºF N/A 2.70
K220T-3PP N/A 303 Stainless Steel N/A Teflon® N/A 3/8 in N/A Female NPT N/A up to 8 psig N/A -320 to 165 ºF N/A 3.50
K220T-4PP N/A 303 Stainless Steel N/A Teflon® N/A 1/2 in N/A Female NPT N/A up to 8 psig N/A -320 to 165 ºF N/A 6.6
K220T-6PP N/A 303 Stainless Steel N/A Teflon® N/A 3/4 in N/A Female NPT N/A up to 8 psig N/A -320 to 165 ºF N/A 10.3
K220T-8PP N/A 303 Stainless Steel N/A Teflon® N/A 1 in N/A Female NPT N/A up to 8 psig N/A -320 to 165 ºF N/A 12.5
K220T1-1PP N/A 316 Stainless Steel N/A Teflon® N/A 1/8 in N/A Female NPT N/A up to 8 psig N/A -320 to 165 ºF N/A 1.60
K220T1-2PP N/A 316 Stainless Steel N/A Teflon® N/A 1/4 in N/A Female NPT N/A up to 8 psig N/A -320 to 165 ºF N/A 2.70
K220T1-3PP N/A 316 Stainless Steel N/A Teflon® N/A 3/8 in N/A Female NPT N/A up to 8 psig N/A -320 to 165 ºF N/A 3.50
K220T1-4PP N/A 316 Stainless Steel N/A Teflon® N/A 1/2 in N/A Female NPT N/A up to 8 psig N/A -320 to 165 ºF N/A 6.6
K220T1-6PP N/A 316 Stainless Steel N/A Teflon® N/A 3/4 in N/A Female NPT N/A up to 8 psig N/A -320 to 165 ºF N/A 10.3
K220T1-8PP N/A 316 Stainless Steel N/A Teflon® N/A 1 in N/A Female NPT N/A up to 8 psig N/A -320 to 165 ºF N/A 12.5
265B-1PP N/A Brass N/A Kalrez® N/A 1/8 in N/A Female NPT N/A 0.5 to 1 psig N/A -40 to 550 ºF N/A 1.60
265B-2PP N/A Brass N/A Kalrez® N/A 1/4 in N/A Female NPT N/A 0.5 to 1 psig N/A -40 to 550 ºF N/A 2.70
265B-3PP N/A Brass N/A Kalrez® N/A 3/8 in N/A Female NPT N/A 0.5 to 1 psig N/A -40 to 550 ºF N/A 3.50
Unit of Measure
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