• for measurement and monitoring of viscous liquids up to 600 cSt
  • horizontal or vertical mounting
  • material: brass or stainless steel
  • for pipe sizes from 1/4" to 1"
  • with switch contacts and/or analogue transmitter
  • max. pessure: 232 psi / 16 bar, max. temperature: 320 °F / 160 °C
  • ranges:
    8 - 27 GPH ... 8 - 24 GPM
    0.2 - 0.8 l/min ... 30 - 90 l/min

More informations

The flowmeter and switch model DS07 works according to a modified variable area principle.

The float is guided in a cylindrical measuring glass by means of a spring. The flowing medium moves the float in the flow direction. The upper edge of the float shows the momentary flow via a burnt-in scale on the measuring glass.

A Reed contact is mounted outside the meter in a sealed housing. When the float reaches the position of the Reed contact the switch will close. With higher flows the float moves further upward until it reaches a built-in float stop, still keeping the switch closed. This ensures a bistable switch function at any time.

The Reed contact is adjustable over the full measuring range of the meter.

The high preload of the spring in combination with a perforated orifice in the float reduces the influence of viscosity fluctuations of the medium to a minimum compared to normal variable area flow meters.

Typical applications

The variable area flowmeter and switch model DS07 is used for measuring and monitoring the flow of viscous liquids, i. e. in central lubricating systems, any other lubricating circuitry, hydraulics, transformer oils etc.

PDF Information

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Variable Area Flowmeters

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