Images are representations only.

ZM-R Blanketing Valve

Brand: PROTEGO
The blanketing valve type ZM-R is a highly developed low pressure reducing valve.

This valve is typically used to inert or blanket tanks, vessels or other process systems with nitrogen or other blanketing gases by controlling the tank pressure to its desired value.

High nitrogen or blanketing gas supply pressures up psi: 232 (kPa: 1,600, bar: 16) are safely reduced down to only a few mbar / Inches WC.
Features
  • One stage pressure reduction within a relatively high pressure range
  • Large membrane surface to increase the closing force
  • All functional and wetted parts are made of stainless steel (or Hastelloy® if required)
  • Easy adjustment of set pressure (Within the pressure range of the specific spring)
  • Vertical or horizontal installation (Set pressure has to be adjusted for horizontal installation)
  • No external energy supply required
  • Optimized flow performance, which reduces capital cost to a minimum as smaller sized vents are needed
  • The valve pallet is guided within the housing to protect against harsh weather conditions, e.g. preventing freezing of pallet in cold weather conditions
  • Reducing within the vacuum range is possible
  • High accuracy
  • Can be installed in explosion hazardous areas
  • Housing designed to psi: 150 (kpa: 1,034, bar: 10.34)
  • Maintenance friendly design
show more
The blanketing valve type ZM-R is a highly developed low pressure reducing valve.

This valve is typically used to inert or blanket tanks, vessels or other process systems with nitrogen or other blanketing gases by controlling the tank pressure to its desired value.

High nitrogen or blanketing gas supply pressures up psi: 232 (kPa: 1,600, bar: 16) are safely reduced down to only a few mbar / Inches WC.
Features
  • One stage pressure reduction within a relatively high pressure range
  • Large membrane surface to increase the closing force
  • All functional and wetted parts are made of stainless steel (or Hastelloy® if required)
  • Easy adjustment of set pressure (Within the pressure range of the specific spring)
  • Vertical or horizontal installation (Set pressure has to be adjusted for horizontal installation)
  • No external energy supply required
  • Optimized flow performance, which reduces capital cost to a minimum as smaller sized vents are needed
  • The valve pallet is guided within the housing to protect against harsh weather conditions, e.g. preventing freezing of pallet in cold weather conditions
  • Reducing within the vacuum range is possible
  • High accuracy
  • Can be installed in explosion hazardous areas
  • Housing designed to psi: 150 (kpa: 1,034, bar: 10.34)
  • Maintenance friendly design
  • Model - Blanketing Valve for Overpressure, Standard Design
Out of Stock
  • Model - Blanketing Valve for Vacuum, Standard Design
Out of Stock

Specifications

Brand

Approvals & Certifications

  • ISO 16016

BSP Connection

  • G 1”
  • G 1/2”
  • G 2”
  • G 4”

Diaphragm Material

  • PTFE
  • Viton

Enclosure, Body Material

  • Hastelloy
  • Stainless Steel

Flange Size - 1” (DN 25)

  • 1” (DN 25) - 150# ASME B16.5

Flange Size - 1/2” (DN 15)

  • 1/2” (DN 15) - 150# ASME B16.5

Flange Size - 2” (DN 50)

  • 2” (DN 50) - 150# ASME B16.5

Flange Size - 4” (DN 100)

  • 4” (DN 100) - 150# ASME B16.5

Flange Type

  • Raised Face (RF)
  • Smooth Finish

Flow Rate

  • 0.15 to 70 Kvs

Gasket Material

  • PTFE

Materials of Construction

  • Valve Pallet: Hastelloy
  • Valve Pallet: Stainless Steel

NPT Connection

  • 1” NPT
  • 1/2” NPT
  • 2” NPT
  • 4” NPT

Pressure Range

  • psi: 0 to 7.252 (kPa: 0 to 50, Mbar: 0 to 500) - Set Pressure for Overpressure Function
  • psi: -2.9 to 0 (kPa: -20 to 0, Mbar: -200 to 0) - Set Pressure for Vacuum Function

Seat / Seal Material

  • Valve Seat Sealing: FFKM
  • Valve Seat: Hastelloy
  • Valve Seat: Stainless Steel

Supply Pressure

  • psi: 0 to 232 (kPa: 0 to 1,600, bar: 0 to 16)