Technical data:

Type	DN25、DN32、DN40、DN50、DN65
Measurement accuracy	±0.5% of the measured value (at 20 mm./s, (cSt) of ±0.5 %..100 % nominal working range (see also diagrams in upstream pages)
Repeatability	±0.25 %
Shaft speed	500-3600 rpm
Flows	1.4- 2500 L/min
Outlet pressure	15 bar
Inlet pressure	From -0.5 to 3bar (10bar option)
Fluids	oil or non-aggressive self-lubricating fluids
Viscosity	From 15 to 20000cst
Working temperature	-25..+80 ÅãC (150 ÅãC available on request)
Seal	NBR、FPM
Pump body	Extruded aluminum alloy
Rotors	Steel for primary screw，cast iron for secondary screw
Supply voltage	10..30 V DC at voltage output 10 V: 15..30 V DC
Output data:	4..20 mA (0..20 mA available on request)

Product Features: 

VHS series flowmeter is screw type. The fluid fills the defined space between the screws and the wall, and is transported onwards by its own energy of flow. Here, a magnetically pre-tensioned Hall sensor detects a pulse according to the intermediate screw volumes transported. The volume is proportional to the detected frequency.