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.

    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.

Additional Info inc. Setting/Assembly/Disassembly/Materials/Parts/etc

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

Standard Seat: EPDM 

Size

38mm

63mm

101mm

75

92

95

105

42

52

54

65

78

340

316

318

385

398

Geordi Standard Pressure Relief Valve for 25mm to 100mm line sizes. Ends are standard Flat Faced male/male or Butt Weld. Other ends available on request with a possible small price increase and delivery time extension.