Dry Scroll Pump

Operating principle

Based on two spiral cylinders, first one fixed and the second offset and orbiting against the first with an offset of 180°. Thus several crescent-shaped pockets of differing sizes are created. By means of an eccentric drive, the orbiting scroll is made to orbit about the fixed scroll, reducing the volume of the pockets and compressing gases from the outside towards the inside thereby pumping the gases from vacuum chamber.

agilent-technologies.png            scroll-dry-sp.png

SP series of Scroll pumps are available in sizes from 2.5 cfm to 43 cfm. This series offers the lowest initial investment. 10,000 hour life warranty. This series pump has same performance of TriScroll but at a lower cost. This is a generic pump, designed for customers who does not require the image of a known brand.

Technical Specification

ModelunitSP75SP150SP300SP600SP1000
Pumping Speed 60 Hz cfm 2.5 5.1 10.9 22.3 42.8
Ultimate pressure   Torr ≤7.5×10-2 ≤6.0×10-2 ≤1.9×10-2 ≤7.5×10-3 ≤7.5×10-3
Noise Level   dB(A) ≤52 ≤57 ≤61 ≤63 ≤67
Leakage     0.75x10-3 std cc/ sec        
Max. Inlet/Exhaust Pressure   Atm 1.0 / 1.2        
Ambient Operation Temp.   5 C - 40 C        
Max. Water Treatment   G/h 50   60    
Motor Output kW 0.15 0.25 0.55 0.75 ---
1 phase Voltage V 110 110 110 110 ---
  Frequency Hz 60 60 60 60 ---
  Speed rpm 1710 1710 1730 1750 ---
Motor Output kW 0.15 0.25 0.55 0.75 ---
1 phase Voltage V 220 220 220 220 ---
  Frequency Hz 50 50 50 50 ---
  Speed rpm 1425 1425 1440 1440 ---
Motor Output kW 0.15 0.25 0.55 0.75 ---
1 phase Voltage V 230 230 230 230 ---
  Frequency Hz 50/60 50/60 50/60 50/60 ---
  Speed rpm 1710 1710 1710 1740 ---
Motor Output kW --- 0.37 0.55 0.75 1.5
3 phase Voltage V --- 380 380 380 380
  Frequency Hz --- 50 50 50 50
  Speed rpm --- 1400 1440 1440 1440
Inlet/Exhaust Flange     KF25/16 KF25/16 KF25/16 KF40/16 KF40/16×2
Dimensions   mm 350x210x245 430x250x280 492x268x324 530x312x343 580x360x400
Packing Dimension   mm 400x300x340 550x400x420 650x450x480 650x450x480 750x500x520
Net Weight   kg 13 18 32 38 52
Gross Weight   kg 21 27 42 50 65
Cooling Type   Air cooled          

 

Performance curve

dry-scroll-performance-curve.png

Inlet pressure (Pa) Pressure- pumping speed relation curve 

Connection

dry-scroll-connection-1.png   dry-scroll-connection-2.png

ModelABCDEFGHM
GWSP150 430 250 280 220 214 109 86 130 155
GWSP300 490 290 340 267 252 145 101 201 192
GWSP600 520 316 360 291 252 160 93 175 206
GWSP1000 580 360 400 336 267 184 121 195 224

 

Advantage

1. Provide clean vacuum environment. Provide oil free clean vacuum and discharge; guarantees clean vacuum environment.

2. Wider vacuum range, higher ultimate vacuum level, and higher pumping speed Pumping from atmosphere to ultimate vacuum level in seconds. Suitable for repeated switch on/off operation.

3. Low noise; less vibration; higher efficiency, less power consumption Continuous motion results in minimum pressure pulsation, less vibration and low noise. Inlet and exhaust are separated, gas pockets are efficiently sealed, ensures minimum gas leak or back migration.