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

D559A-6M N/A Popoff with deflector cap N/A Aluminum N/A Buna N N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 275 ºF
D559A-8M N/A Popoff with deflector cap N/A Aluminum N/A Buna N N/A 1 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 275 ºF
D559B-1M N/A Popoff with deflector cap N/A Brass 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
D559B-2M N/A Popoff with deflector cap N/A Brass 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
D559B-3M N/A Popoff with deflector cap N/A Brass 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
D559B-4M N/A Popoff with deflector cap N/A Brass 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
D559B-6M N/A Popoff with deflector cap N/A Brass N/A Buna N N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 275 ºF
D559B-8M N/A Popoff with deflector cap N/A Brass N/A Buna N N/A 1 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 275 ºF
D559T1-1M N/A Popoff with deflector cap N/A 316 Stainless Steel 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
D559T1-2M N/A Popoff with deflector cap N/A 316 Stainless Steel 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
D559T1-3M N/A Popoff with deflector cap N/A 316 Stainless Steel 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
D559T1-4M N/A Popoff with deflector cap N/A 316 Stainless Steel 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
D559T1-6M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Buna N N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 275 ºF
D559T1-8M N/A Popoff with deflector cap N/A 316 Stainless Steel N/A Buna N N/A 1 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 275 ºF
D562A-1M N/A Popoff with deflector cap N/A Aluminum N/A Ethylene Propylene N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 300 ºF
D562A-2M N/A Popoff with deflector cap N/A Aluminum N/A Ethylene Propylene N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 300 ºF
D562A-3M N/A Popoff with deflector cap N/A Aluminum N/A Ethylene Propylene N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 300 ºF
D562A-4M N/A Popoff with deflector cap N/A Aluminum N/A Ethylene Propylene N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 300 ºF
D562A-6M N/A Popoff with deflector cap N/A Aluminum N/A Ethylene Propylene N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 300 ºF
D562A-8M N/A Popoff with deflector cap N/A Aluminum N/A Ethylene Propylene N/A 1 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 300 ºF
D562B-1M N/A Popoff with deflector cap N/A Brass N/A Ethylene Propylene N/A 1/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 300 ºF
D562B-2M N/A Popoff with deflector cap N/A Brass N/A Ethylene Propylene N/A 1/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 300 ºF
D562B-3M N/A Popoff with deflector cap N/A Brass N/A Ethylene Propylene N/A 3/8 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 300 ºF
D562B-4M N/A Popoff with deflector cap N/A Brass N/A Ethylene Propylene N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 300 ºF
D562B-6M N/A Popoff with deflector cap N/A Brass N/A Ethylene Propylene N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -65 to 300 ºF
Unit of Measure
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