1
00:01:30,200 --> 00:01:36,500
Dosing pump uses a piston or plunger to force 
liquid from the inlet side to the outside 
side of the pump body.

2
00:01:47,700 --> 00:01:58,500
As piston moves upwards,it will reduce the 
pressure in the pump body.

3
00:02:06,100 --> 00:02:25,100
Cause the pressure in the suction line to 
open the suction valve and permit the liquid 
to flow into the pump.

4
00:02:42,200 --> 00:02:48,600
Once a dosing pump is primed, this means 
all the air is pushed out of the lines right 
up to the injector, it is then set for its 
required dose rate or set to work from its 
input signal.

5
00:02:58,000 --> 00:02:59,300
The higher pressure in the discharge line 
keeps the discharge valve closed.

6
00:02:59,400 --> 00:03:01,600
Once operating, then the pump works at its 
required flow rate until a stop signal pauses 
the action or similar.