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VD/SV-PA (L) Pressure Vacuum Relief Valve

Brand: PROTEGO
The VD/SV-PA(L) type Protego valve is a highly developed pressure and vacuum relief valve with excellent flow performance.

Typically the valve is installed in the in-and outbreathing lines of tanks, vessels and process apparatus to protect against unallowable high and low pressure.

The valve prevents emission losses almost up to the set pressure and prevents air intake almost up to set vacuum.

The product vapors can be discharged through a collective line connected to the line flange on the pressure side.

The device will start to open as soon as the set pressure is reached and only requires 10% overpressure to full lift.

Continuous investments into research and development have allowed Protego to develop a low pressure valve which has the same opening characteristic as a high pressure safety relief valve.

This "full lift type" technology allows the valve to be set just 10% below the maximum allowable working pressure or vacuum (MAWP or MAWV) of the tank and still safely vent the required mass flow.

The opening characteristic is the same for pressure and vacuum relief.
Features
  • "Full lift type" technology valve utilizes only 10% overpressure to reach full lift
  • Extreme tightness and hence least possible product losses and reduced environmental pollution
  • Set pressure is close to the opening pressure which results in best possible pressure management of the system
  • Very high flow capacity
  • Can be used in areas subject to explosion hazards
  • Self draining
  • Maintenance friendly design
  • Best technology for API-tanks
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The VD/SV-PA(L) type Protego valve is a highly developed pressure and vacuum relief valve with excellent flow performance.

Typically the valve is installed in the in-and outbreathing lines of tanks, vessels and process apparatus to protect against unallowable high and low pressure.

The valve prevents emission losses almost up to the set pressure and prevents air intake almost up to set vacuum.

The product vapors can be discharged through a collective line connected to the line flange on the pressure side.

The device will start to open as soon as the set pressure is reached and only requires 10% overpressure to full lift.

Continuous investments into research and development have allowed Protego to develop a low pressure valve which has the same opening characteristic as a high pressure safety relief valve.

This "full lift type" technology allows the valve to be set just 10% below the maximum allowable working pressure or vacuum (MAWP or MAWV) of the tank and still safely vent the required mass flow.

The opening characteristic is the same for pressure and vacuum relief.
Features
  • "Full lift type" technology valve utilizes only 10% overpressure to reach full lift
  • Extreme tightness and hence least possible product losses and reduced environmental pollution
  • Set pressure is close to the opening pressure which results in best possible pressure management of the system
  • Very high flow capacity
  • Can be used in areas subject to explosion hazards
  • Self draining
  • Maintenance friendly design
  • Best technology for API-tanks
4 models matching criteria
  • Model - Pressure/Vacuum Valve in Basic Design
Out of Stock
  • Model - Pressure/Vacuum Relief Valve with DN 2 > DN 1 with Heating Jacket
Out of Stock
  • Model - Pressure/Vacuum Relief Valve with Heating Jacket
Out of Stock
  • Model - Pressure/Vacuum Relief Valve with DN 2 > DN 1
Out of Stock

Specifications

Brand

Approvals & Certifications

  • ISO 6358, ISO 16016
  • TÜV (Technischer Uberwachungsverein)

Diaphragm Material

  • FEP

Enclosure Finish

  • ECTFE

Enclosure, Body Material

  • Aluminum
  • Stainless Steel
  • Steel

Flange Size - 10” (DN 250)

  • 10” (DN 250) - 150# ASME B16.5

Flange Size - 12” (DN 300)

  • 12” (DN 300) - 150# ASME B16.5

Flange Size - 2” (DN 50)

  • 2” (DN 50) - 150# ASME B16.5

Flange Size - 3” (DN 80)

  • 3” (DN 80) - 150# ASME B16.5

Flange Size - 4” (DN 100)

  • 4” (DN 100) - 150# ASME B16.5

Flange Size - 6” (DN 150)

  • 6” (DN 150) - 150# ASME B16.5

Flange Size - 8” (DN 200)

  • 8” (DN 200) - 150# ASME B16.5

Flange Type

  • Raised Face (RF)
  • Smooth Finish

Materials of Construction

  • Heating Jacket, Valve Pallet: Stainless Steel
  • Heating Jacket: Steel
  • Valve Pallet: Aluminum

Pressure Range

  • psi: 0.029 to 0.87 (kPa: 0.2 to 6, Mbar: 2 to 60)
  • psi: -0.870 to -0.029 (kPa: -6 to -0.2, Mbar: -60 to -2) - Vaccum

Seat / Seal Material

  • Seal: FEP
  • Seal: Metal
  • Seal: PTFE
  • Valve Seat: Stainless Steel