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

580T1-3MP N/A Inline N/A 316 Stainless Steel N/A Teflon®
N/A 3/8 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -320 to 165 ºF
580T1-4M N/A Popoff N/A 316 Stainless Steel N/A Teflon®
N/A 1/2 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -320 to 165 ºF
580T1-4MP N/A Inline N/A 316 Stainless Steel N/A Teflon®
N/A 1/2 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -320 to 165 ºF
580T1-6M N/A Popoff N/A 316 Stainless Steel N/A Teflon®
N/A 3/4 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -320 to 165 ºF
580T1-6MP N/A Inline N/A 316 Stainless Steel N/A Teflon®
N/A 3/4 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -320 to 165 ºF
580T1-8M N/A Popoff N/A 316 Stainless Steel N/A Teflon®
N/A 1 in N/A Pipe Thread Male N/A 0.5 to 150 psig N/A -320 to 165 ºF
580T1-8MP N/A Inline N/A 316 Stainless Steel N/A Teflon®
N/A 1 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -320 to 165 ºF
580T1-10MP N/A Inline N/A 316 Stainless Steel N/A Teflon®
N/A 1 1/4 in N/A Pipe Thread Male/Female N/A 0.5 to 150 psig N/A -320 to 165 ºF
532B-2M-.5 N/A Popoff N/A Brass N/A Viton®
N/A 1/4 in N/A Pipe Thread Male N/A 0.5 psig N/A -20 to 400 ºF
532B-2M-5 N/A Popoff N/A Brass N/A Viton®
N/A 1/4 in N/A Pipe Thread Male N/A 5 psig N/A -20 to 400 ºF
532B-2M-10 N/A Popoff N/A Brass N/A Viton®
N/A 1/4 in N/A Pipe Thread Male N/A 10 psig N/A -20 to 400 ºF
532B-2M-100 N/A Popoff N/A Brass N/A Viton®
N/A 1/4 in N/A Pipe Thread Male N/A 100 psig N/A -20 to 400 ºF
559B-2MP-.5 N/A Inline N/A Brass N/A Buna N N/A 1/4 in N/A Pipe Thread Male/Female N/A 0.5 psig N/A -65 to 275 ºF
559B-2MP-20 N/A Inline N/A Brass N/A Buna N N/A 1/4 in N/A Pipe Thread Male/Female N/A 20 psig N/A -65 to 275 ºF
559B-2MP-50 N/A Inline N/A Brass N/A Buna N N/A 1/4 in N/A Pipe Thread Male/Female N/A 50 psig N/A -65 to 275 ºF
559B-2MP-100 N/A Inline N/A Brass N/A Buna N N/A 1/4 in N/A Pipe Thread Male/Female N/A 100 psig N/A -65 to 275 ºF
559T1-2M-10 N/A Popoff N/A 316 Stainless Steel N/A Buna N N/A 1/4 in N/A Pipe Thread Male N/A 10 psig N/A -65 to 275 ºF
559T1-2M-100 N/A Popoff N/A 316 Stainless Steel N/A Buna N N/A 1/4 in N/A Pipe Thread Male N/A 100 psig N/A -65 to 275 ºF
520B-3MP-100 N/A Inline N/A Brass N/A Teflon®
N/A 3/8 in N/A Pipe Thread Male/Female N/A 100 psig N/A -100 to 400 ºF
520B-4MP-100 N/A Inline N/A Brass N/A Teflon®
N/A 1/2 in N/A Pipe Thread Male/Female N/A 100 psig N/A -100 to 400 ºF
520B-4MP-80 N/A Inline N/A Brass N/A Teflon®
N/A 1/2 in N/A Pipe Thread Male/Female N/A 80 psig N/A -100 to 400 ºF
520B-6MP-45 N/A Inline N/A Brass N/A Teflon®
N/A 3/4 in N/A Pipe Thread Male/Female N/A 45 psig N/A -100 to 400 ºF
520B-8MP-0.5 N/A Inline N/A Brass N/A Teflon®
N/A 1 in N/A Pipe Thread Male/Female N/A 0.5 psig N/A -100 to 400 ºF
520T1-1M-10 N/A Popoff N/A 316 Stainless Steel N/A Teflon®
N/A 1/8 in N/A Pipe Thread Male N/A 10 psig N/A -100 to 400 ºF
520T1-2M-30 N/A Popoff N/A 316 Stainless Steel N/A Teflon®
N/A 1/4 in N/A Pipe Thread Male N/A 30 psig N/A -100 to 400 ºF
Unit of Measure
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