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

D524B-3M N/A Popoff with deflector cap N/A Brass N/A Silicone N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
D524B-4M N/A Popoff with deflector cap N/A Brass N/A Silicone N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
D524B-6M N/A Popoff with deflector cap N/A Brass N/A Silicone N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
D524B-8M N/A Popoff with deflector cap N/A Brass N/A Silicone N/A 1 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
D524T1-1M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Silicone N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
D524T1-2M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Silicone N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
D524T1-3M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Silicone N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
D524T1-4M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Silicone N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
D524T1-6M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Silicone N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
D524T1-8M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Silicone N/A 1 in N/A Pipe Thread Male N/A 0.5 to 74.9 psig N/A -70 to 450 ºF
D532A-1M N/A Popoff with deflector cap N/A Aluminum N/A Viton®
N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
D532A-2M N/A Popoff with deflector cap N/A Aluminum N/A Viton®
N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
D532A-3M N/A Popoff with deflector cap N/A Aluminum N/A Viton®
N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
D532A-4M N/A Popoff with deflector cap N/A Aluminum 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
D532A-6M N/A Popoff with deflector cap N/A Aluminum 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
D532A-8M N/A Popoff with deflector cap N/A Aluminum 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
D532B-1M N/A Popoff with deflector cap N/A Brass N/A Viton®
N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
D532B-2M N/A Popoff with deflector cap N/A Brass N/A Viton®
N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
D532B-3M N/A Popoff with deflector cap N/A Brass N/A Viton®
N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
D532B-4M N/A Popoff with deflector cap N/A Brass 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
D532B-6M N/A Popoff with deflector cap N/A Brass 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
D532B-8M N/A Popoff with deflector cap N/A Brass 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
D532T1-1M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Viton®
N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
D532T1-2M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Viton®
N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
D532T1-3M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Viton®
N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -20 to 400 ºF
Unit of Measure
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