NR-Type Area Type Flow Meter (Rotameter)
Operation Principle
The variable area flow meter consists of a float & taper tube. The fluid flows through the taper tube and forces up to the float. The flow rate is measured as a function of the area of the opening. This area displayed on the float that is free to move to produce the varying area.
Technical Data
Measuring The Flow Rate For
Gases & Liquid
Chemical process system
Industrial flow system
Service condition
Viscosity: ≤ 3cP
Max. working temperature: Metal: 100°C; Plastic: 60°C
Max. working pressure:
(1) Body material: NRS: 15 kg/cm2,
NRI: 15 kg/cm2, NRV: 6 kg/cm2
(2) Glass tube: Borosilicate glass 6 kg/cm2
(3) P.C tube: 10 kg/cm2, Instant pressure: 15 kg/cm2
Alarm Switch Available (N.0)
Switch rating: AC 125V 0.5A / DC 100V 10W/
Max. DC 250V < 1mA
Accuracy: ±2.5% F.S
