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Premier Control Technologies Flow, pressure, level and temperature solutions

Drastar DR90 Series

  • Single stage high flow pressure reducing regulator
  • Designed for use with deionised water
  • Cv = 4.0

Single-stage High Flow Pressure Reducing Regulator

Drastar’s DR90 series is a single stage high flow pressure reducing regulator available with either 3/8”, ½”. ¾” or 1” line sizes and a Cv value of 4.0.

DR90 is designed for deionised water and industrial gas.

Inlet and Outlet pressures

DR90 series can be used with inlet pressures of up to 42 bar (600psi) with full scale outlet pressures either being 5 bar (72psi), 10 bar (145psi) or 15 bar (217psi).

DR90 set point control can either be with the control knob or a bolt.

Body materials

Body materials are 316L stainless steel.

Key specifications

TypeDI Water and Gas High Flow, Low Pressure - Pressure Reducing Regulator
Maximum Inlet Pressure600 psi (42 Bar)
Maximum Outlet Pressure217 psi (15 Bar)
Cv Options4
Sensing TypeDiaphragm
Port Sizes3/8", 1/2", 3/3", 1"
Port TypeNPT
ApplicationGas and Liquid


Common process applications and industrial uses include:

  • Deionised water
  • General industrial gases

Other features

  • Cv = 4.0
  • Temperature rating to 70C
  • Panel mounting with a bracket available as option
  • Design proof pressure to 150% of pressure range

Model numbers

  • DR901-S005-NP8
  • DR905-S015-NP2


The Drastar DR90 Series is widely used in the following industries:

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