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

259B-12PP N/A Brass N/A Buna N N/A 1 1/2 in N/A Female NPT N/A 0.5 to 1 psig N/A -65 to 275 ºF N/A 23.2
249B-16PP N/A Brass N/A Buna N N/A 2 in N/A Female NPT N/A 2 to 4 psig N/A -65 to 250 ºF N/A 51.0
249B-16PP-3 N/A Brass N/A Buna N N/A 2 in N/A Female NPT N/A 3 psig N/A -65 to 250 ºF N/A 51.0
259B-16PP N/A Brass N/A Buna N N/A 2 in N/A Female NPT N/A 0.5 to 1 psig N/A -65 to 275 ºF N/A 51.0
220B-1PP N/A Brass N/A Teflon® N/A 1/8 in N/A Female NPT N/A up to 8 psig N/A -100 to 400 ºF N/A 1.60
220B-2PP N/A Brass N/A Teflon® N/A 1/4 in N/A Female NPT N/A up to 8 psig N/A -100 to 400 ºF N/A 2.70
220B-3PP N/A Brass N/A Teflon® N/A 3/8 in N/A Female NPT N/A up to 8 psig N/A -100 to 400 ºF N/A 3.50
220B-3PP-15 N/A Brass N/A Teflon® N/A 3/8 in N/A Female NPT N/A 15 psig N/A -100 to 400 ºF N/A 3.50
220B-4PP N/A Brass N/A Teflon® N/A 1/2 in N/A Female NPT N/A up to 8 psig N/A -100 to 400 ºF N/A 6.6
220B-4PP-1 N/A Brass 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
220B-6PP N/A Brass N/A Teflon® N/A 3/4 in N/A Female NPT N/A up to 8 psig N/A -100 to 400 ºF N/A 10.3
220B-6PP-0.15 N/A Brass N/A Teflon® N/A 3/4 in N/A Female NPT N/A 0.15 psig N/A -100 to 400 ºF N/A 10.3
220B-8PP N/A Brass N/A Teflon® N/A 1 in N/A Female NPT N/A up to 8 psig N/A -100 to 400 ºF N/A 12.5
220B-10PP N/A Brass N/A Teflon® N/A 1 1/4 in N/A Female NPT N/A up to 8 psig N/A -100 to 400 ºF N/A 23.2
220B-12PP N/A Brass 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
220B-16PP N/A Brass 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
233B-1PP N/A Brass 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
253B-1PP N/A Brass 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
233B-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
253B-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
233B-3PP N/A Brass 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
253B-3PP N/A Brass 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
233B-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
253B-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
233B-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
Unit of Measure
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