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
  • Popoff or inline valves
  • Adjustable crack pressure
  • Zero leakage
  • Accurate set pressure
  • Tamper-proof adjustment
  • 100% seat leakage tested
  • PED certifications and CE marking available for most models
Circle Seal Relief Valve 500 Series Popoff
Unit of Measure
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Item #

Variation

Body Material

Seal Material

Valve Size

End Connection

Cracking Pressure

Operating Temperature

D532T1-4M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Viton®
N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
D532T1-6M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Viton®
N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
D532T1-8M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Viton®
N/A 1 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
D533A-1M N/A Popoff with deflector cap N/A Aluminum N/A Neoprene N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533A-2M N/A Popoff with deflector cap N/A Aluminum N/A Neoprene N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533A-3M N/A Popoff with deflector cap N/A Aluminum N/A Neoprene N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533A-4M N/A Popoff with deflector cap N/A Aluminum N/A Neoprene N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533A-6M N/A Popoff with deflector cap N/A Aluminum N/A Neoprene N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533A-8M N/A Popoff with deflector cap N/A Aluminum N/A Neoprene N/A 1 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533B-1M N/A Popoff with deflector cap N/A Brass N/A Neoprene N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533B-2M N/A Popoff with deflector cap N/A Brass N/A Neoprene N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533B-3M N/A Popoff with deflector cap N/A Brass N/A Neoprene N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533B-4M N/A Popoff with deflector cap N/A Brass N/A Neoprene N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533B-6M N/A Popoff with deflector cap N/A Brass N/A Neoprene N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533B-8M N/A Popoff with deflector cap N/A Brass N/A Neoprene N/A 1 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533T1-1M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Neoprene N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533T1-2M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Neoprene N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533T1-3M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Neoprene N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533T1-4M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Neoprene N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533T1-6M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Neoprene N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D533T1-8M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Neoprene N/A 1 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -40 to 300 ºF
D559A-1M N/A Popoff with deflector cap N/A Aluminum N/A Buna N N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 275 ºF
D559A-2M N/A Popoff with deflector cap N/A Aluminum N/A Buna N N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 275 ºF
D559A-3M N/A Popoff with deflector cap N/A Aluminum N/A Buna N N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 275 ºF
D559A-4M N/A Popoff with deflector cap N/A Aluminum N/A Buna N N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 275 ºF
Unit of Measure
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