Pressure regulator with flow control

Pressure regulator with flow control
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SWISS optio varius

The varius at a glance:

  • Compact, robust construction
  • Ratchet disc for simple and user-friendly setting of the extraction flow-rate
  • Readability of the set flow-rate from both the front and the side
  • Accurate withdrawal, regardless of the position of the cylinder
  • Integrated pressure relief valve
  • Intended for use in clinics, emergency medicine and home care
  • The pressure reducing valve can be supplied with vertical or horizontal gauge

The varius pressure-reducing valve with flow control for medical use is used for the precise dosage of medical gases from a high-pressure gas cylinder by means of an integrated, precise flow controller.

Depending on the model, the pressure reducing valve can also be fitted with up to three outlets (4.5 bar not flow controlled) that can be used for the operation of respirator units and additional instruments in clinics. It must be observed that the cylinder has sufficient residual pressure depending on the required flow rate (s.technical data).

The varius is certified in accordance with EN ISO 10524-1 (incl. ignition test for oxygen); CE marking according to the Guideline for Medical Products 93/42/EEC.

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Technical Data:

  • Construction

    Single-stage piston pressure reducing valve

  • Inlet pressure

    200 bar

  • Outlet pressure

    4.5 bar (fixed)

  • Inlet

    Cylinder connection DIN, NF, AGA, BS, PIN-Index, UNI (others on request)

  • Flow rate ranges

    1 - 15 l/min, 0.5 - 5 l/min, 0.1 - 1 l/min (other ranges on request)

  • Flow rate (Air)

    with residual pressure in cylinder of 10 bar : 55 l/min, 20 bar : 100 l/min,

    30 bar : 150 l/min

  • Measurement accuracy

    ± 20%

  • Gas

    Air, O2, CO2, N2O, test gas mixtures (other gases on request)

  • Outlet (flow controlled)

    Hose connector 5 or 6 mm, threaded nipple G1/4“, G3/8“, G1/2“, 9/16“ UNF

  • Outlet (not flow controlled)

    G1/4“ inner thread, as option with self-closing outlets M12x1, NIST-housings or quick connectors (country-specific)

  • Material

    Brass body, external parts nickel-plated

  • Sealing material

    CU, EPDM, SI und PEEK

  • Operating temperature

    -20° to +60°

  • Dimensions

    W x H x D : 40 x 105 x 97 mm (standard version)

  • Weight

    720 g screw connection

    850 g PIN Index connection

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Configuration chosen might not be available for all gases.

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