Model :4DY400/6.3A-20/130A Series
1. Summary
Modle 4DY-400/6.3A~20/130A  Series  electric pressure testing pump (hereafter called pump for short) is and equipment provided specially for testing water pressure of various pressure vesselspipes, 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.
 2. Parameters
  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-400/6.3A  6.3 400 1200  32  
Y100L2-4
 
 		  
3		 865×480×1105  
215
 
 
4DY-235/10A  10 235 1050  25
4DY-150/16A  16  150 950  20
4DY-98/25A  25  98 900  16
4DY-70/40A  40  70 850  14
4DY-50/63A  63  50 830  12
4DY-33/80A  80  32 810  10
4DY-20/130A  130  20 800  8
 Working pressure of the low pressure water cylinders：≦1.6MPA
Number of cylinders：4
Plunger stroke：40mm
Pump speed：126  /min