Line Pressure Regulator

The line pressure regulator L1 is characterised by an accurate regulation and a large throughput.

The spring-loaded pressure regulator works according to the principle of the force equilibrium between the adjusted spring force and the outlet pressure.

It can be equipped optionally with an inlet and an outlet gauge.


A large independence from fluctuation of the inlet pressure is reached with a balanced poppet. The use of high-grade steel in connection with elastomer made of viton permits the application of this pressure regulator with aggressive media. 

Make an Enquiry

  • Technical Details
  • Application Area
  • Order Details
Body: brass or stainless steel
Seat: Ø 12,7 (balanced)
Diaphragm: EPDM or viton
Max. inlet pressure: 100 bar
Outlet pressure ranges: 0.5-10, 1-20, 5-70 bar
Operating temp.: -20°C to +60°C
Gas: in-/outlet G 1". gauges G 1/4"

Depending on applied materials, this pressure regulator is applicable for different gases and liquids.

Urgently recommend the connection of a fine filter with max. 40 μ at the inlet of the pressure regulator, as well as to protect following components with suitable relief valves against inadmissibly high pressures.

To identify the correct order code for your L1

Start with the model number, then add the appropriate number options from columns A, B, C, D, E & F in the table below followed by the gas to be used.

L1-1-2-1-0-0-0-Argon specifies a L1 model in brass with Ø 12,7 (balanced) seat, EPDM diaphragm, 10 bar outlet pressure, no gauge & G1" female part inlet/outlet, for use with Argon gas.

Material Seat Diaphragm Outlet Pressure Gauges Inlet/Outlet Option
1 = brass 2 = Ø 12,7 (balanced) = EPDM 0 = 10 bar 0 = none 0 = G1" f
2 = stainless steel   2 = viton 1 = 20 bar 1 = inlet and outlet gauges 1 = flange DN25-PN40-Form C
      2 = 70 bar