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UB/DF Pressure Diaphragm Valve

Brand: PROTEGO
The deflagration-and endurance burning-proof UB/DF type Protego diaphragm valve is a state-of-the-art pressure relief valve combining the function of a dynamic and static flame arrester. 

It is primarily used as a safety device for flame transmission proof out breathing on tanks, containers and process engineering apparatus. 

The valve offers reliable protection against excess pressure prevents the inbreathing of air and product losses almost up to the set pressure and protects against atmospheric deflagration and endurance burning if stabilized burning occurs. 

The Protego UB/DF diaphragm valve has proven its performance over many years in a great variety of severe applications in the petrochemical and chemical industry. 

The set pressure is adjusted with a freeze resistant water-glycol mixture, which assures safe operation under extreme cold weather conditions. 

The Protego UB/DF valve is available for substances of explosion group IIB3 (NEC group C MESG ≥0.65 mm).
Features
  • High performance seal reducing product loss below EPA's 500 ppm rule preventing environmental pollution
  • Set pressure close to opening pressure enables optimum pressure maintenance in the system
  • High flow capacity
  • Can be used as a protective system according to ATEX in areas subject to an explosion hazard
  • Protection against atmospheric deflagrations and endurance burning for products up to explosion group IIB3 (NEC group C ≥0.65 mm MESG)
  • Minimum pressure drop of the FLAMEFILTER
  • Flame-transmission-proof pressure and vacuum chambers
  • Freeze protection at sub-zero conditions
  • Self draining function for condensate
  • Liquid column height is monitored by level indicators
  • Easy maintenance through hinged vent cap
  • Modular design enables individual FLAMEFILTER discs and valve diaphragm to be replaced
  • Particularly suitable for problematic products such as styrene, acrylics, etc
The deflagration-and endurance burning-proof UB/DF type Protego diaphragm valve is a state-of-the-art pressure relief valve combining the function of a dynamic and static flame arrester. 

It is primarily used as a safety device for flame transmission proof out breathing on tanks, containers and process engineering apparatus. 

The valve offers reliable protection against excess pressure prevents the inbreathing of air and product losses almost up to the set pressure and protects against atmospheric deflagration and endurance burning if stabilized burning occurs. 

The Protego UB/DF diaphragm valve has proven its performance over many years in a great variety of severe applications in the petrochemical and chemical industry. 

The set pressure is adjusted with a freeze resistant water-glycol mixture, which assures safe operation under extreme cold weather conditions. 

The Protego UB/DF valve is available for substances of explosion group IIB3 (NEC group C MESG ≥0.65 mm).
Features
  • High performance seal reducing product loss below EPA's 500 ppm rule preventing environmental pollution
  • Set pressure close to opening pressure enables optimum pressure maintenance in the system
  • High flow capacity
  • Can be used as a protective system according to ATEX in areas subject to an explosion hazard
  • Protection against atmospheric deflagrations and endurance burning for products up to explosion group IIB3 (NEC group C ≥0.65 mm MESG)
  • Minimum pressure drop of the FLAMEFILTER
  • Flame-transmission-proof pressure and vacuum chambers
  • Freeze protection at sub-zero conditions
  • Self draining function for condensate
  • Liquid column height is monitored by level indicators
  • Easy maintenance through hinged vent cap
  • Modular design enables individual FLAMEFILTER discs and valve diaphragm to be replaced
  • Particularly suitable for problematic products such as styrene, acrylics, etc
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Displaying prices & availability for Ohio, United States in USD. Change location.

Models matching criteria: 2
UB/DF-H
  • Model - Pressure Diaphragm Valve with Heating Coil
Out of Stock
UB/DF
  • Model - Pressure Diaphragm Valve, Basic Design
Out of Stock
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Specifications

Brand

Approvals & Certifications

  • ATEX
  • CEN
  • IEC
  • NEC Group C MESG ≥ 0.65 mm

Approvals & Certifications

  • EN 14015, EN 16852
  • ISO 28300 (API 2000), ISO 6358, ISO 16016
  • TÜV (Technischer Uberwachungsverein)

Diaphragm Material

  • FEP
  • FPM

Enclosure Finish

  • ECTFE

Enclosure, Body Material

  • Stainless Steel
  • Steel

Environmental Protection

  • Explosion-proof Group IIB3

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

Gasket Material

  • FPM
  • PTFE

Materials of Construction

  • Valve Top, Heating Coil, Flamefilter Cage, Spacer: Stainless Steel

Operating Temperature

  • 0° to 60° C (32° to 140° F)

Pressure Range

  • psi: 0.050 to 2.031 (kPa: 0.35 to 14, Mbar: 3.5 to 140)

Process Temperature

  • Maximum

Seat / Seal Material

  • Valve Seat: Stainless Steel
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