Hydraulic Flow Meters

As hydraulic oil heats up, its viscosity drops, increasing "internal leakage" (slippage) past the meter's internal gears or turbine. Calibration maps this leakage across different temperature gradients, ensuring your readings remain accurate as your machinery reaches peak operating heat.

Yes. If internal seals or gear teeth are worn, fluid will bypass the measuring element entirely. We perform a low-flow "starting point" test; if the meter fails to register at low pressure, it indicates mechanical bypass, signaling it’s time for a rebuild rather than just a recalibration.

High back-pressure can compress entrained air bubbles in the oil, artificially changing the volume being measured. Our calibration verifies the meter’s housing integrity and sensor response under loaded conditions, ensuring the "back-pressure effect" doesn't skew your system's efficiency metrics.

Cavitation creates microscopic pitting on turbine blades, changing their mass and aerodynamic "drag." This causes the meter to lag behind the actual flow. We inspect and certify the blade response to ensure these invisible physical changes aren't compromising your pump-test results.

Absolutely. For "all-in-one" testers, we certify both the flow turbine and the internal pressure loading valve. This ensures that when you simulate a "full load" on a pump, the relationship between the pressure gauge and flow meter is synchronized and traceable.

If the K-factor (pulses per litre) in your PLC doesn't match the worn state of a physical meter, your automation system will receive "ghost" data. We provide a certified K-factor update based on the meter’s current mechanical condition, ensuring your digital controls reflect real-world hydraulic movement.