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
  • Zero leakage up to 95% of cracking pressure
  • Positive reseat at high percentage of cracking pressure
  • Accurate set pressure
  • Wide range of cracking pressure
  • Tamper-proof adjustment
  • PED certifications and CE marking available for most models
5100 Series Relief Valve
Unit of Measure
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Item #

Body Material

O-Ring Material

Valve Size

End Connections (Inlet/Outlet)

Cracking Pressure

Operating Temperature

Cracking Pressure Setting

M5132B-4M N/A Brass N/A Viton® N/A 1/2 in N/A Male pipe N/A 10 to 2400 psig N/A -20 to 400 ºF
M5132B-6M N/A Brass N/A Viton® N/A 3/4 in N/A Male pipe N/A 10 to 2400 psig N/A -20 to 400 ºF
M5132B-8M N/A Brass N/A Viton® N/A 1 in N/A Male pipe N/A 10 to 2400 psig N/A -20 to 400 ºF
M5159B-1M N/A Brass N/A Buna N N/A 1/8 in N/A Male pipe N/A 10 to 2400 psig N/A -65 to 275 ºF
M5159B-2M N/A Brass N/A Buna N N/A 1/4 in N/A Male pipe N/A 10 to 2400 psig N/A -65 to 275 ºF
M5159B-3M N/A Brass N/A Buna N N/A 3/8 in N/A Male pipe N/A 10 to 2400 psig N/A -65 to 275 ºF
M5159B-4M N/A Brass N/A Buna N N/A 1/2 in N/A Male pipe N/A 10 to 2400 psig N/A -65 to 275 ºF
M5159B-6M N/A Brass N/A Buna N N/A 3/4 in N/A Male pipe N/A 10 to 2400 psig N/A -65 to 275 ºF
M5159B-8M N/A Brass N/A Buna N N/A 1 in N/A Male pipe N/A 10 to 2400 psig N/A -65 to 275 ºF
M5120B-1M N/A Brass N/A Teflon® N/A 1/8 in N/A Male pipe N/A 20 to 2400 psig N/A -100 to 400 ºF
M5120B-2M N/A Brass N/A Teflon® N/A 1/4 in N/A Male pipe N/A 20 to 2400 psig N/A -100 to 400 ºF
M5120B-3M N/A Brass N/A Teflon® N/A 3/8 in N/A Male pipe N/A 20 to 2400 psig N/A -100 to 400 ºF
M5120B-4M N/A Brass N/A Teflon® N/A 1/2 in N/A Male pipe N/A 20 to 2400 psig N/A -100 to 400 ºF
M5120B-6M N/A Brass N/A Teflon® N/A 3/4 in N/A Male pipe N/A 20 to 1200 psig N/A -100 to 400 ºF
M5120B-8M N/A Brass N/A Teflon® N/A 1 in N/A Male pipe N/A 20 to 1200 psig N/A -100 to 400 ºF
M5133B-1M N/A Brass N/A Neoprene N/A 1/8 in N/A Male pipe N/A 10 to 2400 psig N/A -40 to 300 ºF
M5133B-2M N/A Brass N/A Neoprene N/A 1/4 in N/A Male pipe N/A 10 to 2400 psig N/A -40 to 300 ºF
M5133B-3M N/A Brass N/A Neoprene N/A 3/8 in N/A Male pipe N/A 10 to 2400 psig N/A -40 to 300 ºF
M5133B-4M N/A Brass N/A Neoprene N/A 1/2 in N/A Male pipe N/A 10 to 2400 psig N/A -40 to 300 ºF
M5133B-6M N/A Brass N/A Neoprene N/A 3/4 in N/A Male pipe N/A 10 to 2400 psig N/A -40 to 300 ºF
M5133B-8M N/A Brass N/A Neoprene N/A 1 in N/A Male pipe N/A 10 to 2400 psig N/A -40 to 300 ºF
M5162B-1M N/A Brass N/A Ethylene Propylene N/A 1/8 in N/A Male pipe N/A 10 to 2400 psig N/A -65 to 300 ºF
M5162B-2M N/A Brass N/A Ethylene Propylene N/A 1/4 in N/A Male pipe N/A 10 to 2400 psig N/A -65 to 300 ºF
M5162B-3M N/A Brass N/A Ethylene Propylene N/A 3/8 in N/A Male pipe N/A 10 to 2400 psig N/A -65 to 300 ºF
M5162B-4M N/A Brass N/A Ethylene Propylene N/A 1/2 in N/A Male pipe N/A 10 to 2400 psig N/A -65 to 300 ºF
Unit of Measure
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