SPECIAL GAS + EQUIPMENT CONSULTANTS
CRR Ltd
FR1

FR1

Precision pressure regulator

Single stage with balanced main valve for mbar applications and instrumentation.

The FR 1 is a single-stage precision pressure regulator with balanced main valve.

The FR 1 can be installed in piping systems, control panels or integrated into instrumentation.

The balanced poppet ensures that even when inlet pressure drops down, a constant operating pressure is guaranteed (dual stage effect).

An easily replaceable sintered metal filter element is integrated into the pressure regulator as standard.

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  • Technical Details
  • Application Area
  • Order Details
Body: aluminium anodised or stainless steel
Valve seat: stainless steel
Gaskets: viton / NBR
Diaphragm: viton / NBR / stainless steel
Max. inlet pressure: 12 bar
Outlet pressure ranges: 50 mbar - 7.0 bar
Operating temp.: -20°C to +70°C
Dimensions (wxhxd): 106 x 48 mm
Weight: 240 g
Threads: in- / outlet NPT 1/8“ f

The precision pressure regulator FR1 is used particularly in the following areas:

  • Gas analysis
  • Gas chromatography
  • Instrumentation
  • Process engineering
  • Metallurgy
  • Laboratory applications
  • mbar applications

To identify the correct order code for your FR1

Start with "FR1-", then add the appropriate number options from columns A, B, C, D & E in the table below followed by the gas to be used.

FR1-1-1-2-0-2-Argon specifies a FR1 model in aluminium with NBR diaphragm, viton gaskets, without guages & up to 350mbar pressure ranges, for use with Argon gas.

A B
C
D
E
Material Diaphragm Gaskets Gauges Pressure ranges
1 = aluminium 1 = NBR 1 = NBR 0 = none 1 = up to 170 mbar
2 = stainless steel (1.4404) 2 = viton 2 = viton 1 = outlet gauge 2 = up to 350 mbar
  3 = stainless steel (1.4435)     3 = up to 500 mbar
  4 = hastelloy (2.4610)     4 = up to 700 mbar
        5 = up to 2.1 bar
        6 = up to 4.2 bar
        7 = up to 7.0 bar