Engineering Technologies Anderson Greenwood Crosby Sanmar POPRV – Series 800

Anderson Greenwood Crosby Sanmar Limited

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POPRV – Series 800

SERIES 800 MODULATING SAFETY RELIEF VALVES

The Series 800 modulating valve utilizes the most advanced design in pilot operated valves. The non-flowing, modulating pilot can be set at pressures up to 6170 psig [425.52 barg]. Under these process conditions, the pilot and main valve can be tight up to 98 percent of set pressure. As the pilot is modulating, the main valve lifts proportionally according to required flow (relief demand), restricting product loss to the mass required to prevent the process pressure from exceeding the code allowance. The pilot provides stable lift even on hard, liquid systems due to its unique trim.

GENERAL APPLICATION

The Series 800 can be used in liquids, gases or mixed phase lading fluids, including dirty and/or wet services.

FEATURES

  • Increased system output with total valve tightness to 98% of set pressure without leakage.
  • Balanced design ensures proper valve operation and lift unaffected by back pressure, eliminating the need for costly and fragile metal bellows.
  • Unique field test capability allows accurate set pressure verification with valve in service. No system isolation block valve required.
  • Soft seats greatly extend service life and reduce maintenance cost, eliminating expensive metal seat lapping.
  • Reduced product loss and pollution through soft seats for premium tightness before and after relief cycles. Modulating action relieves minimum product to prevent overpressure.
  • Suitable for dirty or wet service with non-flowing pilot minimizing entrance of dirt and formation of hydrates. Low velocities ensure most particles drop out upstream of pilot inlet screen.
  • Modulating action minimizes flow and resultant noise during normal system upset, reducing noise abatement costs.
  • Rugged bracket pilot mounting protects against vibration and careless handling.
  • Easy, single set pressure adjustment is accurate and dependable.
  • ASME Section VIII and Section XIII (UV Designator) Code Stamp for gas and liquid service and CE mark to European PED 2014/68/EU.

TECHNICAL DATA

  • Sizes: 1″ x 2″ to 4″ x 6″ (DN 25 to 100)
  • Orifices: 0.110 to 9.489 in2 (0.710 to 61.21 cm2)
  • Inlet ratings: ANSI Class 900 to 2500
  • Temperature range: -65°F to + 600°F (-54°C to + 315°C)
  • Set pressures: 1,481 to 6,170 psig (102.13 to 425.52 barg)
  • Code: ASME VIII and XIII (UV Designator)

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