Modle 4DY-520/8A-20/200A  Series

Modle 4DY-520/8A-20/200A electric pressure testing pump (hereafter called pump for short) is and equipment provided specially for testing water pressure of various pressure vessels,pipes, valves, and etc., and for getting high pressure liquid in labs. This pump is specially designed in the light of the requirements of mater pressure test . During the initial stage of pressure testing, the pump can be quickly filled with liquid and its pressure booms thus shortening the testing time. The pump has a greater flow, when the pressure is over 1.6Mpa（this pressure can be lowered）,  the flow is automatically reduced in order that pressure testing can be carried out smoothly and slowly .Therefore at high pressure and low pressure the pump has two different flows, which can be automatically shifted .If  the outlet pressure of the pump is less than the rated one, the test of any water pressure can be carried out.
The basic parameters are indicated as Table

 
Model

Rated outlet pressure
Mpa

 Flow  L/h

Dia Of hp piunger
 mm

  Motor to be served

Overall dimensions
Lxhxw mm

Weight
 Kg

At high pressure

At low pressure

model

Kw

4DY-520/8

 8

520

1350

 36

 
Y112M-4
 
 

 
4

880×480×1105

 
230
 
 

4DY-420/12

 12

420

1250

 32

4DY-250/20

 20

 250

1080

 25

4DY-160/30

 30

 160

960

 20

4DY-100/48

 48

 100

920

 16

4DY-55/100

 100

 55

830

 12

4DY-35/130

 130

 35

820

 10

4DY-20/200

 200

 20

 810

 8

 
Working pressure of the low pressure water cylinders：≦1.6MPA
Number of cylinders：4
Plunger stroke：40mm
Pump speed：126  /min