Noise And Vibration Data; Connections; Materials Of Construction Of Components Exposed To Pumped Gases; Item Numbers - Edwards EH500 Instruction Manual

A301-51-880 Issue T
Table 14 - Cooling-water supply data: EH pumps in ATEX systems
Minimum cooling-water flow
(with inlet temperature of 20 ºC)
-1
EH1200 T3/T160/T4X 2 l min
-1
EH2600 T3/EH2600 T160/T4X 4 l min
-1
EH4200 T3/EH4200 T160/T4X 4 l min
Recommended cooling-water supply pressure 2 to 6 bar gauge, 3 to 7 bar absolute,
5 5
3 x 10 to 7 x 10 Pa
Permissible temperature range 5 to 35 ºC
2.9

Noise and vibration data

Table 15 - Noise and vibration data
-1
Vibration level < 1.8 mm s r.m.s. in the range 10 to 1000 Hz
Continuous A-weighted sound pressure level
measured at 1 metre from the EH pump:
EH250 EH500 EH1200 EH2600 EH4200
72 dB(A) 72 dB(A) 77 dB(A) 83 dB(A) 83 dB(A)
2.10

Connections

Table 16 - Connections
Cooling-water connections:
3
Inlet / inch BSP male
8
3
Outlet / inch BSP male
8
* 1
Hydrokinetic drive/gearbox purge connection / inch compression fitting
4
Vacuum connections:
EH250 EH500 EH1200 EH2600 EH4200
Inlet ISO63 ISO100 ISO160 ISO160 ISO250
Outlet ISO40 ISO63 ISO100 ISO100 ISO100
*
Chemical and ATEX compliant pumps only.
© Edwards Limited 2007. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
A301-51-880 Issue T
Figure 3 - EH250/EH250IND dimensions (mm)*
EH250 EH250IND
1. Lifting-bolt
A 682 709
2. External evacuation port
B 270 270
C 183 190
* The dimensions given in Figure 3 assume that Leroy is used for both the 1.5 and 2.2 KW motors.
© Edwards Limited 2007. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
Page 15
Page 17
A301-51-880 Issue T
2.11 Materials of construction of components exposed to pumped
gases
Table 17 - Materials of construction
Stator and headplates Grey cast iron, grade 250 (BS1452)
Rotors SG iron, grade 420/12 (BS2789)
Hydrokinetic drive/gearbox cover Aluminium LM25TF (BS1490)
Housing 'O' rings Viton
Hydrokinetic drive/gearbox shaft-seals Viton
Internal pump shaft-seals PTFE (polytetrafluoroethylene)
*
Hydrokinetic drive/gears cooling coils Copper/brass
†
After-cooler and swept volume Nickel plated copper/brass
Headplate jointing compound Loctite 518
*
All EH1200, EH2600 and EH4200 models.
†
All EH2600 and EH4200 models.
2.12

Item Numbers

Table 18 - Item numbers
220-240 V/380-415 V 208-230 V/460 V
* 3-phase, 50 Hz 3-phase, 60 Hz
Pump(s) Type
Hydrocarbon PFPE Hydrocarbon PFPE
EH250 SA - A301-53-935 - A301-54-936
EH250IND SA A301-51-945 - A301-52-946
EH500 SA - A302-73-935 - A302-74-936
EH500IND SA A302-71-945 - A302-72-946
EH1200 SA - A305-92-935 - A305-93-936
EH1200IND SA A305-90-935 - A305-91-936
†
EH1200C FP - - A305-56-982
EH1200 T3/T160/T4X FP A305-57-900 - -
EH2600 SA - A307-53-935 - A307-54-936
‡ **
EH2600IND SA A307-75-946 - A307-76-982
**
EH2600C FP - - A307-56-982
‡
EH2600 T3X FP A307-41-935 - -
‡
EH2600 T160/T4X FP A307-79-900 - -
EH4200 SA - - -
‡ **
EH4200IND SA A309-75-946 - A309-76-982
**
EH4200C FP - - A309-56-982
‡
EH4200 T3X FP A309-41-935 - -
‡
EH4200 T160/T4X FP A309-79-900 - -
*
SA = Safe area, FP = Flameproof
†
460 V only
‡
380-415 V only
**
230/460 V only
Page 16 © Edwards Limited 2007. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
A301-51-880 Issue T
Figure 4 - EH500/EH500IND dimensions (mm)*
EH500 EH500IND
A 770 797
1. Lifting-bolts B 234 252
2. External evacuation port C 183 190
* The dimensions given in Figure 4 assume that Leroy is used for both the 1.5 and 2.2 KW motors.
Page 18 © Edwards Limited 2007. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
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