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

559B-2MP-2.4 N/A Inline N/A Brass N/A Buna N N/A 1/4 in N/A Pipe Thread Male/Female N/A 2.4 psig N/A -65 to 275 ºF
559B-2MP-25 N/A Inline N/A Brass N/A Buna N N/A 1/4 in N/A Pipe Thread Male/Female N/A 25 psig N/A -65 to 275 ºF
559B-2MP-42 N/A Inline N/A Brass N/A Buna N N/A 1/4 in N/A Pipe Thread Male/Female N/A 42 psig N/A -65 to 275 ºF
559B-2MP-43 N/A Inline N/A Brass N/A Buna N N/A 1/4 in N/A Pipe Thread Male/Female N/A 43 psig N/A -65 to 275 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 5 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-6 N/A Inline N/A Brass N/A Buna N N/A 1/4 in N/A Pipe Thread Male/Female N/A 6 psig N/A -65 to 275 ºF
559B-2MP-60 N/A Inline N/A Brass N/A Buna N N/A 1/4 in N/A Pipe Thread Male/Female N/A 60 psig N/A -65 to 275 ºF
559B-3M-10 N/A Popoff N/A Brass N/A Buna N N/A 3/8 in N/A Pipe Thread Male N/A 10 psig N/A -65 to 275 ºF
559B-3M-4 N/A Popoff N/A Brass N/A Buna N N/A 3/8 in N/A Pipe Thread Male N/A 4 psig N/A -65 to 275 ºF
559B-3M-50 N/A Popoff N/A Brass N/A Buna N N/A 3/8 in N/A Pipe Thread Male N/A 50 psig N/A -65 to 275 ºF
559B-3MP-0.2 N/A Inline N/A Brass N/A Buna N N/A 3/8 in N/A Pipe Thread Male/Female N/A 0.2 psig N/A -65 to 275 ºF
559B-3MP-10 N/A Inline N/A Brass N/A Buna N N/A 3/8 in N/A Pipe Thread Male/Female N/A 10 psig N/A -65 to 275 ºF
559B-3MP-29 N/A Inline N/A Brass N/A Buna N N/A 3/8 in N/A Pipe Thread Male/Female N/A 29 psig N/A -65 to 275 ºF
559B-3MP-50 N/A Inline N/A Brass N/A Buna N N/A 3/8 in N/A Pipe Thread Male/Female N/A 50 psig N/A -65 to 275 ºF
559B-4M-0.5 N/A Popoff N/A Brass N/A Buna N N/A 1/2 in N/A Pipe Thread Male N/A 0.5 psig N/A -65 to 275 ºF
559B-4M-1 N/A Popoff N/A Brass N/A Buna N N/A 1/2 in N/A Pipe Thread Male N/A 1 psig N/A -65 to 275 ºF
559B-4M-10 N/A Popoff N/A Brass N/A Buna N N/A 1/2 in N/A Pipe Thread Male N/A 10 psig N/A -65 to 275 ºF
559B-4M-100 N/A Popoff N/A Brass N/A Buna N N/A 1/2 in N/A Pipe Thread Male N/A 100 psig N/A -65 to 275 ºF
559B-4M-110 N/A Popoff N/A Brass N/A Buna N N/A 1/2 in N/A Pipe Thread Male N/A 110 psig N/A -65 to 275 ºF
559B-4M-120 N/A Popoff N/A Brass N/A Buna N N/A 1/2 in N/A Pipe Thread Male N/A 120 psig N/A -65 to 275 ºF
559B-4M-125 N/A Popoff N/A Brass N/A Buna N N/A 1/2 in N/A Pipe Thread Male N/A 125 psig N/A -65 to 275 ºF
559B-4M-13 N/A Popoff N/A Brass N/A Buna N N/A 1/2 in N/A Pipe Thread Male N/A 13 psig N/A -65 to 275 ºF
559B-4M-150 N/A Popoff N/A Brass N/A Buna N N/A 1/2 in N/A Pipe Thread Male N/A 150 psig N/A -65 to 275 ºF
559B-4M-2 N/A Popoff N/A Brass N/A Buna N N/A 1/2 in N/A Pipe Thread Male N/A 2 psig N/A -65 to 275 ºF
Unit of Measure
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