Flow rate and pressure are linked by Bernoulli’s equation, by friction losses, and by the geometry of whatever the fluid passes through. A pump that delivers 200 kPa across a 50 mm pipe will not push the same volume per minute Read More
Updated Apr 25, 2026 — Reviewed by Sino-Inst Engineering Team A BTU meter for chilled water quantifies cooling energy by combining a flow meter with a matched pair of RTDs on the supply and return. On a typical HVAC loop Read More
Most flow meter accuracy problems trace back to one root cause: not enough straight pipe before and after the meter. Get the upstream and downstream lengths right and a $3,000 magmeter holds its ±0.5% spec. Get them wrong and even Read More
A magnetic flow meter (magmeter) measures conductive liquid by Faraday’s law: when fluid moves through a magnetic field generated by the meter’s coils, electrodes pick up a voltage proportional to velocity. The physics is unforgiving — an air bubble at Read More
Updated 2026-05-09 by the Sino-Inst engineering team. A flow transmitter is the field instrument that turns a flow measurement into a 4-20 mA, HART, Modbus, or pulse signal that a PLC or DCS can read — and that a SCADA Read More
A refrigerant flow meter must do something a water flow meter does not: handle a fluid whose density swings from 30 kg/m³ in the suction line to over 1300 kg/m³ in the liquid line of the same chiller. That density Read More
A piston flow meter measures liquid by counting how many fixed-volume slugs pass through the meter body. Each rotation of the piston pushes one chamber of liquid past a sealed reference, and a magnet on the piston shaft drives a Read More
A solid flow meter measures the mass flow of dry bulk material — cement, soybean meal, fly ash, plastic pellets, sugar, mined coal — moving through a pipe, chute, or on a belt. Unlike liquid flow, there is no single Read More
Updated: April 24, 2026 — by Sino-Inst Engineering Team Molasses, honey, syrup, resin, and asphalt all share the same headache: they stop common flow meters from working. Orifice plates clog. Electromagnetic meters read zero when the fluid is non-conductive. Turbine Read More
Updated: April 23, 2026 Every differential pressure flow meter — orifice plate, venturi, flow nozzle, V-cone, averaging pitot — runs the same equation. Bernoulli says the velocity through a restriction goes as the square root of the pressure drop. Multiply Read More
