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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

559T1-1M-49 N/A Popoff N/A 316 Stainless Steel N/A Buna N N/A 1/8 in N/A Pipe Thread Male N/A 49 psig N/A -65 to 275 ºF
559T1-1M-60 N/A Popoff N/A 316 Stainless Steel N/A Buna N N/A 1/8 in N/A Pipe Thread Male N/A 60 psig N/A -65 to 275 ºF
559T1-1M-91 N/A Popoff N/A 316 Stainless Steel N/A Buna N N/A 1/8 in N/A Pipe Thread Male N/A 91 psig N/A -65 to 275 ºF
559T1-2M-0.5 N/A Popoff N/A 316 Stainless Steel N/A Buna N N/A 1/4 in N/A Pipe Thread Male N/A 0.5 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-120 N/A Popoff N/A 316 Stainless Steel N/A Buna N N/A 1/4 in N/A Pipe Thread Male N/A 120 psig N/A -65 to 275 ºF
559T1-2M-125 N/A Popoff N/A 316 Stainless Steel N/A Buna N N/A 1/4 in N/A Pipe Thread Male N/A 125 psig N/A -65 to 275 ºF
559T1-2M-15 N/A Popoff N/A 316 Stainless Steel N/A Buna N N/A 1/4 in N/A Pipe Thread Male N/A 15 psig N/A -65 to 275 ºF
559T1-2M-150 N/A Popoff N/A 316 Stainless Steel N/A Buna N N/A 1/4 in N/A Pipe Thread Male N/A 150 psig N/A -65 to 275 ºF
559T1-2M-20 N/A Popoff N/A 316 Stainless Steel N/A Buna N N/A 1/4 in N/A Pipe Thread Male N/A 20 psig N/A -65 to 275 ºF
559T1-2M-40 N/A Popoff N/A 316 Stainless Steel N/A Buna N N/A 1/4 in N/A Pipe Thread Male N/A 40 psig N/A -65 to 275 ºF
559T1-2M-5 N/A Popoff N/A 316 Stainless Steel N/A Buna N N/A 1/4 in N/A Pipe Thread Male N/A 5 psig N/A -65 to 275 ºF
559T1-2MP-1 N/A Inline N/A 316 Stainless Steel N/A Buna N N/A 1/4 in N/A Pipe Thread Male/Female N/A 1 psig N/A -65 to 275 ºF
559T1-2MP-10 N/A Inline N/A 316 Stainless Steel N/A Buna N N/A 1/4 in N/A Pipe Thread Male/Female N/A 10 psig N/A -65 to 275 ºF
559T1-2MP-100 N/A Inline N/A 316 Stainless Steel 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
559T1-2MP-20 N/A Inline N/A 316 Stainless Steel 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
559T1-2MP-25 N/A Inline N/A 316 Stainless Steel 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
559T1-2MP-75 N/A Inline N/A 316 Stainless Steel N/A Buna N N/A 1/4 in N/A Pipe Thread Male/Female N/A 75 psig N/A -65 to 275 ºF
559T1-3M-20 N/A Popoff N/A 316 Stainless Steel N/A Buna N N/A 3/8 in N/A Pipe Thread Male N/A 20 psig N/A -65 to 275 ºF
559T1-4M-15 N/A Popoff N/A 316 Stainless Steel N/A Buna N N/A 1/2 in N/A Pipe Thread Male N/A 15 psig N/A -65 to 275 ºF
559T1-4M-50 N/A Popoff N/A 316 Stainless Steel N/A Buna N N/A 1/2 in N/A Pipe Thread Male N/A 50 psig N/A -65 to 275 ºF
559T1-4M-95 N/A Popoff N/A 316 Stainless Steel N/A Buna N N/A 1/2 in N/A Pipe Thread Male N/A 95 psig N/A -65 to 275 ºF
562B-1M-1 N/A Popoff N/A Brass N/A Ethylene Propylene N/A 1/8 in N/A Pipe Thread Male N/A 1 psig N/A -65 to 300 ºF
562B-1M-30 N/A Popoff N/A Brass N/A Ethylene Propylene N/A 1/8 in N/A Pipe Thread Male N/A 30 psig N/A -65 to 300 ºF
562B-1M-70 N/A Popoff N/A Brass N/A Ethylene Propylene N/A 1/8 in N/A Pipe Thread Male N/A 70 psig N/A -65 to 300 ºF
Unit of Measure
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