Kytölä SR1 Oval Gear Flow Meter

SR1 is based on the fluid rotating two oval gears; the number of rotations is proportional to volumetric flow. The manufacturer states that the flow reading stays accurate even when temperature and viscosity change. It is therefore chosen for viscous fluid applications such as lubrication circuits and hydraulic and process oil lines.

Models in the family

• SR1: range options from a lowest 0.1-1.5 L/min to a highest 10-120 L/min in oil.
• 2950: 0.1-1.5 to 5-70 L/min for oil.
• SRx block: combines up to eight measurement points in one block; highest 0.5-6 L/min.
• SRO: wide flows from 10-120 L/min to 20-200 L/min.
• 6210P: for corrosive and viscous liquids.

The oval gear design suits applications requiring low pressure loss and high chemical resistance.

Choosing SR1

Because measurement is directly volumetric, leakage falls and accuracy is maintained even as fluid viscosity increases. As well as single use, block designs support monitoring of up to eight points, with alarm and pulse sensors.

Tetra helps with model selection according to oil viscosity and flow. It provides field support for connecting the pulse or alarm sensor to the monitoring system, line mounting and periodic cleaning of the gear area.