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DZ/EA-F Pressure or Vacuum Relief Valve, In-Line

Brand: PROTEGO
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The lined Protego in-line valve DZ/EA-F is a state-of-the-art pressure or vacuum relief valve in right angle design for higher set pressures. 

The lining makes this model a perfect solution for corrosive, polymerizing or sticky media. 

All internal parts are manufactured from PTFE or other highly corrosion resistant materials. 

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

The valve prevents emission losses almost up to the set pressure or provides protection from product entry into the system. 

This spring loaded model allows higher set pressures than the DZ/EA.
Features
  • "Full lift type" technology valve utilizes only 10% overpressure to reach full lift
  • High performance seal reducing product loss below EPA’s 500 ppm rule preventing environmental pollution
  • Based on 10% technology the set pressure is close to the opening pressure which results in best possible pressure management of the system compared to conventional 40% or 100% technology valves
  • Internal lining and correct material selection makes this type the perfect solution for corrosive, polymerizing and sticky media
  • Optimized flow performance, which reduces capital cost to a minimum as smaller sized valves may be used
  • Can be used as pressure or vacuum relief valve
  • Compact right angle design saves space
  • Housing designed to psi: 150 (kpa: 1,034, bar: 10.34) (PN 10)
  • Spring loaded design for higher set pressures
  • Maintenance friendly design
The lined Protego in-line valve DZ/EA-F is a state-of-the-art pressure or vacuum relief valve in right angle design for higher set pressures. 

The lining makes this model a perfect solution for corrosive, polymerizing or sticky media. 

All internal parts are manufactured from PTFE or other highly corrosion resistant materials. 

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

The valve prevents emission losses almost up to the set pressure or provides protection from product entry into the system. 

This spring loaded model allows higher set pressures than the DZ/EA.
Features
  • "Full lift type" technology valve utilizes only 10% overpressure to reach full lift
  • High performance seal reducing product loss below EPA’s 500 ppm rule preventing environmental pollution
  • Based on 10% technology the set pressure is close to the opening pressure which results in best possible pressure management of the system compared to conventional 40% or 100% technology valves
  • Internal lining and correct material selection makes this type the perfect solution for corrosive, polymerizing and sticky media
  • Optimized flow performance, which reduces capital cost to a minimum as smaller sized valves may be used
  • Can be used as pressure or vacuum relief valve
  • Compact right angle design saves space
  • Housing designed to psi: 150 (kpa: 1,034, bar: 10.34) (PN 10)
  • Spring loaded design for higher set pressures
  • Maintenance friendly design
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Specifications

Brand

Approvals & Certifications

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

Cover Material

  • Steel

Disc Material

  • Guiding Disc: PTFE

Enclosure, Body Material

  • 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 Size - 4” (DN 100)

  • 4” (DN 100) - 150# ASME B16.5

Flange Size - 6” (DN 150)

  • 6” (DN 150) - 150# ASME B16.5

Flange Type

  • Raised Face (RF)
  • Smooth Finish

Materials of Construction

  • Lining: ETFE
  • Valve Pallet, Guiding: Hastelloy

Pressure Range

  • psi: -7.252 to 7.252 (kPa: -50 to 50, Mbar: -500 to 500)

Seat / Seal Material

  • Seal: Metal
  • Valve Seat: Hastelloy

Spindle Material

  • Hastelloy
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