Model 5 GPH - 20 GPM (LL) - 1/4" - 1" Variable Area Piston Flowmeter Brochure
These variable-area meters position an orifice over a tapered shaft to establish flow rate. Mounting is in-line and in any position. Straight pipe runs before or after this monitor are not required. The all-mechanical sensing system directly drives the pointer, switches and transmitters.