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
1 2 3 4 

Item Number

Body Material

O-Ring Material

Connection Size

End Connections (Inlet/Outlet)

Cracking Pressure

Operating Temperature

Cv

H232B-2PP N/A Brass N/A Viton® N/A 1/4 in N/A Female NPT N/A 0.5 to 1 psig N/A -20 to 400 ºF N/A 2.70
H232B-4PP N/A Brass N/A Viton® N/A 1/2 in N/A Female NPT N/A 0.5 to 1 psig N/A -20 to 400 ºF N/A 6.6
H232B-6PP N/A Brass N/A Viton® N/A 3/4 in N/A Female NPT N/A 0.5 to 1 psig N/A -20 to 400 ºF N/A 10.3
H249B-2PP N/A Brass N/A Buna N N/A 1/4 in N/A Female NPT N/A 2 to 4 psig N/A -65 to 250 ºF N/A 2.70
H259B-2PP N/A Brass N/A Buna N N/A 1/4 in N/A Female NPT N/A 0.5 to 1 psig N/A -65 to 275 ºF N/A 2.70
H249B-4PP N/A Brass N/A Buna N N/A 1/2 in N/A Female NPT N/A 2 to 4 psig N/A -65 to 250 ºF N/A 6.6
H259B-4PP N/A Brass N/A Buna N N/A 1/2 in N/A Female NPT N/A 0.5 to 1 psig N/A -65 to 275 ºF N/A 6.6
H249B-6PP N/A Brass N/A Buna N N/A 3/4 in N/A Female NPT N/A 2 to 4 psig N/A -65 to 250 ºF N/A 10.3
H259B-6PP N/A Brass N/A Buna N N/A 3/4 in N/A Female NPT N/A 0.5 to 1 psig N/A -65 to 275 ºF N/A 10.3
H220B-2PP N/A Brass N/A Teflon® N/A 1/4 in N/A Female NPT N/A 8 psig N/A -100 to 400 ºF N/A 2.70
H220B-4PP N/A Brass N/A Teflon® N/A 1/2 in N/A Female NPT N/A 8 psig N/A -100 to 400 ºF N/A 6.6
H280B-6PP N/A Brass N/A Teflon® N/A 3/4 in N/A Female NPT N/A 8 psig N/A -320 to 165 ºF N/A 10.3
H233B-2PP N/A Brass 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
H253B-2PP N/A Brass 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
H233B-4PP N/A Brass 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
H253B-4PP N/A Brass 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
H233B-6PP N/A Brass 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
H253B-6PP N/A Brass 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
H224B-2PP N/A Brass N/A Silicone N/A 1/4 in N/A Female NPT N/A 0.5 to 1 psig N/A -70 to 450 ºF N/A 2.70
H224B-4PP N/A Brass N/A Silicone N/A 1/2 in N/A Female NPT N/A 0.5 to 1 psig N/A -70 to 450 ºF N/A 6.6
H224B-6PP N/A Brass N/A Silicone N/A 3/4 in N/A Female NPT N/A 0.5 to 1 psig N/A -70 to 450 ºF N/A 10.3
H262B-2PP N/A Brass 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
H262B-4PP N/A Brass 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
H262B-6PP N/A Brass 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
H264B-2PP N/A Brass N/A Fluorosilicone N/A 1/4 in N/A Female NPT N/A 0.5 to 1 psig N/A -80 to 350 ºF N/A 2.70
Unit of Measure
1 2 3 4