FluidReg Regulator for Water and Other Fluids

FluidReg Regulator for Water and Other Fluids


The FluidReg is an independent membrane regulator that can be installed in every fluid or compressed air pneumatic system. It supplies a constant, exact outlet pressure regardless of the input pressure. The pressure is factory-set and cannot be changed. This ensures that nobody can alter the specified pressure. It is well known that the pressure of a water or fluid line normally is too high, fluctuates, and varies according to the height of the building. In that case, the in-line FluidReg protects all equipment and components placed after it, so that they will only receive the correct pressure. This is particularly important for all machinery/plants for/or with dosing of liquids, as this will prevent stops in production. Furthermore, if the FluidReg is combined with a sprinkler nozzle, the best basis for cooling/cleaning by means of water, spray or fog is created.


  • Reduces energy consumption
  • Highly reliable
  • Easy to mount in any water supply system
  • Lightweight, compact construction
  • Service free: no adjustment ever needed
  • Locked to prevent pressure change (tamper proof)
  • Increases device service life


  • Filling machines
  • Plumbing
  • Irrigation systems
  • Misting
  • Cooking Ovens

Quantity & Stock
Please contact info@proportionair.com or call 877-406-3215 for lead time information on quantities that exceed current stock levels.

Customers Outside USA
If you are outside the United States, please contact us via email to determine shipping availability.

  • Technical Specs
  • Downloads & Links
  • SKUs

Technical Specs

Max Inlet PressureWater: 145 psig (10 bar)
Other Gases: 260 psig (18 bar)
Weight4.4 oz. (125 g)
Dimensions2.05" x 1.34" x 1.34"
Temperature RangeWater: 39-140°F (4-60°C)
Other Gases: 32-140°F (0-60°C)
P1 Inlet ThreadFemale/Female
MaterialsHousing: Nickel-Plated Brass
Spring: Stainless Steel
O-Ring: Nitrile Rubber
Valve Seat: PPH
Spindle: Nickel-Plated Brass


FluidReg Part Numbers
PWR239: FluidReg
AS12: NPT connection
Last 2-3 numbers: Pressure rating
PWR239AS12100, PWR239AS12120, PWR239AS1215, PWR239AS1223, PWR239AS1230, PWR239AS1245, PWR239AS1260, PWR239AS1275, PWR239AS1290

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Provide the correct pressure, all the time

It is well known that the pressure of most water or fluid lines is normally set too high, can fluctuate and has a tendency to vary according to the height of the building it is installed in. The FluidReg will protect all equipment and components downstream by providing the correct pressure and nothing more.


Part Numbers & Technical Information
Thread ConnectionMax Inlet PressureMax Regulated Output PressureMax FlowTolerancesFluidReg Part Number
1/4" NPT145 psig15 psig3000 ml/min± 2 psigPWR239AS1215
1/4" NPT145 psig30 psig4000 ml/min± 4 psigPWR239AS1230
1/4" NPT145 psig45 psig4000 ml/min± 4.5 psigPWR239AS1245
1/4" NPT145 psig60 psig4000 ml/min± 6 psigPWR239AS1260
1/4" NPT145 psig75 psig4000 ml/min± 7.5 psigPWR239AS1275
1/4" NPT145 psig90 psig4000 ml/min± 9 psigPWR239AS1290
1/4" NPT145 psig100 psig4000 ml/min± 10 psigPWR239AS12100
1/4" NPT145 psig120 psig4000 ml/min± 12 psigPWR239AS12120