Applications

  • Natural gas distribution systems
  • Gas supply to industrial boilers, furnaces, ovens and mixers
  • Plant air service
  • Oxygen and ammonia service
  • Large commercial establishments such as shopping centers and schools

Features

  • Minimizes sudden downstream load changes
  • Wide pressure range
  • No atmospheric bleed
  • High accuracy
  • Tight shutoff
  • Easy to maintain

Specifications

Max allowable
inlet pressure / drop PSIG / BAR
Min differential for full stroke PSIG / BAR Recommended disk material Max Orifice Size Notes
25 / 1.7 0.75 / 0.05 Nitrile or Fluorocarbon Disk 1-1/8" Can use 1/2" through
  1-1/8"
50 / 3.4 1.5 / 0.10 Neoprene or Fluorocarbon Disc 1-1/8" Can use 1/2" through 1-1/8"
150 / 10.3 3 / 0.21 Nitrile, Neoprene or Fluorocarbon 1-1/8" Can use 1/2" through
  1-1/8"
250 / 17.2 3 / 0.21 Neoprene or Fluorocarbon O-ring 7/8" 7/8" and 1 1/8" only
  sizes for O-ring seat
300 / 20.7 10 / 0.69 Nylon Disk, Nitrile O-ring 1-1/8" 1-1/8" only available size
  for 300 inlet pressure
400 / 27.6 10 / 0.69 Nylon Disk 7/8" 7/8" and 1-1/8" only
  sizes for O-ring seat
1000 / 69.0 10 / 0.69 Nylon Disk 1/2" 1/2" only available orifice
  for 1000 inlet