Spring Loaded Pressure Regulators

Spring Loaded Pressure Regulators

Pressure regulators, also called Pressure reducing valves, are used to regulate high pressure supply gas down to the required working pressure for individual applications.

Spring loaded regulators are manually adjustable where a spring moves a piston or diaphragm to adjust for the required outlet pressure. They provide stable downstream pressure even with a varying inlet pressure.

Spring loaded regulators are quick and easy to adjust and Norgren’s latest generation achieve a high flow capacity with minimum drop in delivery pressure.

We offer spring loaded pressure regulators compatible with both liquids and gases in Aluminium, Stainless steel and Brass bodies.

Options include relieving and non-relieving as well as a choice of NBR, FPM and EPDM seals.

These can be mounted inline or integrated into a manifold solution for single or multi-stage regulation requirements.  

The application range of our products are versatile, and they have successfully been used in:

  • Gas mixing
  • Gas distribution
  • Chemical processing
  • Purging and charging systems
  • Air compressors
  • Saturation diving
  • Hydraulic actuator control
  • Offshore/aggressive environments
  • Pressure testing rigs
  • Fire suppression systems
  • Pilot dome loaded regulators



Spring loaded Pressure Regulators – Medium Pressure (M.W.P up to 100 bar)

J46 Spring loaded pressure regulator

Pressure regulator for high control accuracy in low to medium pressure applications, suitable for connecting to a pressure gauge and panel mounting

Port size: G3/4 female thread

Max. Inlet pressure: 80 bar

Outlet pressure: 0,1 ... 33 bar

Materials: Aluminium, Stainless steel

RS5 Spring loaded pressure reducer

Pressure regulator for high control accuracy in medium to high pressure area, suitable for connecting to a pressure gauge

Port size: G3/4, NPT 3/4”, NPT 1” female thread, DN 20 & DN 25 flanged

Max. Inlet pressure: 100 bar

Outlet pressure: 0 ... 40 bar

Materials: Stainless steel

Spring loaded Pressure Regulators – High Pressure (M.W.P over 100 bar)

J20 Spring loaded pressure regulator

Port size: G1/4, NPT 1/4”

Max. Inlet pressure: 210 bar (Brass), 450 bar (Stainless steel)

Outlet pressure: 0 … 10 bar

Materials: Brass, Stainless steel

J20 Spring loaded pressure regulator

Port size: G3/4, G1, G 1 ½, G2

Max. Inlet pressure: 10 bar

Outlet pressure: 5 … 140 mbar (G3/4 … 1)

Outlet pressure: 5 … 350 mbar (G 1 1/2 … G2)

J45 Spring loaded pressure regulator

Sturdy pressure regulator for low and medium output pressure and high flow rates

Port size: G1, NPT 1”

Max. Inlet pressure: 210 bar (Standard), 250 bar (PCTFE Valve assembly only)

Outlet pressure: 0.1 … 70 bar

Materials: Carbon steel, Stainless steel

J50 Spring loaded pressure regulator

Pressure regulator for the quick regulation of output pressure, precise and reliable, ideal for high pressure

Port size: G3/8, NPT 3/8”

Max. Inlet pressure: 550 bar (Aluminium), 750 bar (Stainless steel)

Outlet pressure: 275 bar (Aluminium), 550 bar (Stainless steel)

Materials: Aluminium, Stainless steel

D083 Spring loaded pressure regulator

Pressure regulator for high control accuracy in multi-shift operation, suitable for panel mounting

Port size: G3/8

Max. Inlet pressure: 250 bar

Outlet pressure: 1.5 … 250 bar

Materials: Brass

D973 Spring loaded pressure regulator

High pressure regulator with a sturdy construction and corrosion-resistant design for very high pressures

Port size: BSPP 3/8

Max. Inlet pressure: 700 bar

Outlet pressure: 50 … 700 bar

Materials: Stainless steel

D247 Spring loaded pressure regulator with diaphragm

Pressure regulator with control piston/membrane and rear ventilation, high control accuracy, small dimensions, low weight

Port size: G1/4

Max. Inlet pressure: 250 bar

Outlet pressure: 0 … 10 bar

Materials: Aluminium-bronze

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