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Help CenterJRP-2000 Roots Vacuum Pump
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JRP Parameters:
ITEMS |
Units |
JRP-150 |
JRP-250 |
JRP-500 |
JRP-1000 |
JRP-2000 |
|
Pumping rate |
m3/h |
153 |
253 |
505 |
1000 |
2050 |
|
Ultimate pressure |
Pa |
0.05 |
|||||
Extreme full pressuer |
Pa |
0.5 |
|||||
Max.Differential pressure |
Pa |
8000 |
5000 |
||||
In and out of caliber |
mm |
65 |
65 |
65 |
100 |
150 |
|
Max.of zero flow compression rate |
max |
≥35 |
≥35 |
≥40 |
≥40 |
≥50 |
|
Noise |
Db(A) |
63 |
63 |
63 |
68 |
75 |
|
Motor power |
kW |
1.1 |
1.1 |
2.2 |
4 |
7.5 |
|
Motor synchronous speed |
r/min |
3000 |
|||||
Cooling model |
natural air cooling |
||||||
Weight |
kg |
90 |
100 |
155 |
233 |
465 |
|
Recommend backing pump models |
X-63, 2X-8 |
X-100, 2X-15 |
X-160, 2X-30 |
X-302, 2X-70 |
X-630,two2X-70 |
||
Pumping Principal:
When the rotors locate at 1 and 2 in the chamber,the volume of air inlet will increase. When the rotors locate at 3 in the chamber,part of air volume will be blocked out from the air inlet. When the rotors locate at 4,this volume will open to vent.When the rotors further,air will discharge through the air outlet. Rotors will rotors more than two coures once every rotates.
The pressure difference between the inlet side and outlet side of roots pump are limited. JRP series roots pump adopts a bypass valve.When the value of pressure difference reaches to a certain figure,the bypass valve opens automatically.Some air volume from the outlet side flows to the reverse direction of inlet side through the bypass valve and reverse passage,which reduce the operational load of roots pump and front-stage pump greatly in the condition of high pressure difference.Meanwhile,due to the function of unloading when bypass valve opens,it makes sure JRP series vacuum pump and front-stage pump start at same time to aviod the overload for both of them.
The roots pump has to be worked as pump unit together with front-stage pump(such as rotating vane pump,slide valve pump and liquid ring pump).If it is required to reach to higher vacuum degree,two sets of roots pumps can be connected to work as a three stage roots pump unit.
Good Characteristic:
*There is zero friction between rotors,also between rotor and pump chamber,so there is no need of lubricating oil.Consequently,our pump can aviod the oil pollution on vcuum system.
*Compact structure,and easy to install horizontally or vertically
*Good dynamic balance,stable running,small vibration and low noise
*Can pump off the non-condensable gas
*Quick started and can achieve the utmost pressure in a short time
*Small power and low operation maintence costs
*The bypass value on roots pump can enjoy the automatic overload protection effect,so that the operation will be safe and reliable
Application Range:
*vacuum drying and impregnation
*vacuum degass
*vacuum predischarging
*gas exhausting
*for the processes in vacuum distillation, vacuum concentration and vacuum drying in chemical industry,medicine,food and beverage,light industry and textile industry
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