1) Construction
The flow meter converts the flow of petrol sent from the pump to the rotating movement with a crankshaft by means of piston's reciprocating movement for display on the counter. The flow meter can measure the flow of petrol very accuracely.

2) Operation
(1) Petrol sent from the pump enters the cylinder through the slide valve,pressing the piston at A side inward.
(2) Then the B side piston is pushed outward and petrol in the cylindar B is sent to C through the slide valve opening and discharged from the nozzle. The pipe and hose are fitted to the discharge port of the flow meter and connected with the nozzle.

(3) When the four pistons reciprocate alternately, the connecting rods drive the crankshaft, the movement of which is transmitted to the counter.

3) Adjustment of Measuring Error
The measuring error can be adjusted by varying the stroke of piston. When to turn the measure adjustable handle clockwise, the delivered volume will decrease, and when to turn it counterclockwise, the delivered volume will increase.
4)Specifications:
Discharge rate per revolution: 0.5L
Minimum adjusting: :0.25%

Accuracy:±0.2%
Repeat variation: ±0.1%

Max Flow rate: Max Flow rate:90L
Min Flow rate: Min Flow rate:5L
Dimension: 260Wx232.5Hx320d
Weight: 13.8kgs
Pump inner volume: Liquid:3.7e
Floating room inner volume:1.6e
Pump: Internal inlet gear pump
Inlet check valve: Vertical type, with stopper
Strainer: Inlet:150meach 21.5cm Outlet:200mesh 68cm (OP)
Air separater: Centrifugal separation method
Upper float: Made from plastics
Outlet control valve: With stopper
By-pass valve: With stopper
Float valve: Phenol NBR
Overflaw prevention valve: Diaphragm method(With lip seal)
Oil seal: Oil resistant NBR, pressure type (3kgs/ cm2)