P D Flowmeters

A positive displacement meter is a type of flow meter that requires fluid to mechanically displace components in the meter in order for flow measurement. Positive displacement (PD) flow meters measure the volumetric flow rate of a moving fluid or gas by dividing the media into fixed, metered volumes (finite increments or volumes of the fluid). A basic analogy would be holding a bucket below a tap, filling it to a set level, then quickly replacing it with another bucket and timing the rate at which the buckets are filled (or the total number of buckets for the “totalized” flow).

Two rotating oval gears with synchronized teeth “squeeze” a finite amount of fluid through the meter for each revolution. With oval gear flow meters, two oval gears or rotors are mounted inside a cylinder. As the fluid flows through the cylinder, the pressure of the fluid causes the rotors to rotate. As flow rate increases, so does the rotational speed of the rotors.

These flow meters are designed to handled petroleum based fluids such as Diesel, Petrol, Kerosene, light oils and solvents.
Available Sizes : ¾” to 3”
Display Options : Mechanical & Digital

1. Only two moving parts
2. No metal to metal contacts in chamber or bearings
3. Patented ‘Wave Form’ oval gear design
4. Low differential pressure for maximum flow