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PV/EL Pressure & Vacuum Relief Valve

Brand: PROTEGO
The PV/EL type Protego valve is a highly developed combined pressure and vacuum relief valve. 

It is primarily used as a safety device for relieving pressure and vacuum in tanks, containers and process engineering equipment. 

The valve offers reliable protection against overpressure and excessive vacuum. 

It prevents also the impermissible loss of product vapors close to the set pressure as well as the intake of air on the vacuum side close to set vacuum. 

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
  • The set pressure is close to the opening pressure which results in best possible pressure management of the system
  • High flow capacity
  • The valve pallet is guided within the housing to protect against freezing in cold weather
  • Can be used in areas subject to an explosion hazard
  • Self-actuated condensate drain
  • Special design with lifting gear can be purchased
The PV/EL type Protego valve is a highly developed combined pressure and vacuum relief valve. 

It is primarily used as a safety device for relieving pressure and vacuum in tanks, containers and process engineering equipment. 

The valve offers reliable protection against overpressure and excessive vacuum. 

It prevents also the impermissible loss of product vapors close to the set pressure as well as the intake of air on the vacuum side close to set vacuum. 

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
  • The set pressure is close to the opening pressure which results in best possible pressure management of the system
  • High flow capacity
  • The valve pallet is guided within the housing to protect against freezing in cold weather
  • Can be used in areas subject to an explosion hazard
  • Self-actuated condensate drain
  • Special design with lifting gear can be purchased
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Models matching criteria: 2
PV/EL
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  • Model - Pressure/Vacuum Relief Valve
Out of Stock
PV/EL-H
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  • Model - Pressure/Vacuum Relief Valve with Heating Jacket
Out of Stock
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Specifications

Brand

Approvals & Certifications

  • ISO 6358 & 16016
  • TÜV (Technischer Uberwachungsverein)

Diaphragm Material

  • FEP

Enclosure, Body Material

  • Stainless Steel
  • Steel

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 Type

  • Raised Face (RF)
  • Smooth Finish

Materials of Construction

  • Heating Jacket, Weather Hood, Valve Pallet, Protective Mesh Screen: Stainless Steel
  • Heating Jacket, Weather Hood: Steel
  • Valve Pallet: Aluminum

Pressure Range

  • psi: 0.029 to 3.046 (kPa: 0.2 to 21, Mbar: 2 to 210)
  • psi: -0.507 to -0.050 (kPa: -3.5 to -0.35, Mbar: -35 to -3.5) - Vaccum

Seat / Seal Material

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