5100 series Circle Seal relief valve – 0.7 to 165 bar

Product description

This relief valve is zero leakage up to 95% of cracking pressure and  is available in discharge to atmosphere or in-line versions. The cracking pressure is accurate to +/- 5%. The relief valve is adjustable, but tamper proof when installed. A wide range of cracking pressures are available.

Cracking Pressure Range:

  • 10 to 2240 psig (0.7 to 165 bar) – PED approved version available

Body Materials:

  • Brass – 1/8” and 1” NPT
  • 303 St St – 1/8” and 1” NPT – not PED approved
  • 316 St St – 1/8” and 1” NPT

O-ring Materials:

  • Viton, Buna-n, Ethylene propylene and Neoprene standard

Call us on 01895 200015 for price & delivery or to discuss special sizes, materials and threads.

(PDF) Download datasheet

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