All Geordi Pressure Relief Valves (PRVs) come with the option of being set or not set to crack/relieve at a nominated pressure. All prices quoted in the price list are valid for PRVs utilizing a standard spring. Standard springs and pressure ranges include:

• Light spring, which will work effectively from a range of 25-50Psi / 172-345Kpa / 1.7 – 3.4Bar.
• Medium spring, which will work effectively from a range of 50-100Psi / 345-690Kpa / 3.4 – 6.9Bar.
• Heavy spring, which will work effectively from a range of 100-150Psi / 690-1035Kpa / 6.9-10.3Bar.

    Geordi also has the capability to adapt our range of pressure relief valves to relieve at pressures outside the standard ranges listed above including the capability to relieve a nominated flow rate at a given pressure ie. Very positive relief or small “cracking -> full opening” pressure differential.

    Note: all pressure relief valves required to operate outside the standard ranges and conditions may incur an additional cost and delivery time due to the requirement of specialized parts.

Contact us to receive an obligation free quotation for specialized PRV requirements.

    We prefer not to get involved with small PRVs that need to relieve at very low pressures (due to the potential for plunger sticking) or large PRVs that need to relieve at very high pressures (due to structural constraints). Again, contact sales to check what's achievable.

   Also, there is an upper limit to the amount of pressure relief available to the Geordi CIP style valve due to the actuation requirements and general limit to the compressed air pressure available in most facilities which is often 6-8 bar max. A 10 bar relief setting is generally ok, but higher pressure need checking 1st to ensure there's enough force on the actuating piston to lift the seat.

    Seat Materials: The standard seating materials vary for each type of Pressure Relief Valve. Different seating materials are available eg. Teflon, Viton, EPDM, Nitrile, Silicone etc but may require some additional cost from the standard configuration.

Standard 100mm body comes with B/W ends as standard.

Standard Seat: EPDM

Size

38mm

50mm

63mm

76mm

100mm

75

92

95

105

42

52

54

65

78

355

330

332

403

416

An adaptation of the Geordi Standard Pressure Relief Valve. This Clean In Place (CIP) version allows the valve to be pneumatically opened via compressed air inlet for cleaning.