Edwards EXT70H Series User Manual

B722-20-880 Issue D
Page ii © Edwards Limited 2008. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
Contents
6 Storage and disposal ........................................................................... 31
6.1 Storage ...................................................................................................................31
6.2 Disposal ...................................................................................................................31
7 Service, spares and accessories .............................................................. 33
7.1 Introduction .............................................................................................................33
7.2 Service ....................................................................................................................33
7.3 Spares .....................................................................................................................33
7.3.1 ISX inlet-screen .........................................................................................................33
7.3.2 Inlet-strainer (EXT255Hi 24V pump only) ...........................................................................33
7.3.3 WCX water-cooler ......................................................................................................34
7.3.4 Inlet-flange seals ........................................................................................................34
7.4 Accessories ...............................................................................................................34
7.4.1 Installation ...............................................................................................................34
7.4.2 EXDC drive modules ....................................................................................................34
7.4.3 BX bakeout band ........................................................................................................34
7.4.4 FL20K foreline trap .....................................................................................................35
7.4.5 TAV vent-valve and vent-port adaptor ..............................................................................35
7.4.6 ACX air-cooler ...........................................................................................................35
7.4.7 Vibration isolators ......................................................................................................35
7.4.8 PRX purge-restrictor ....................................................................................................35
7.4.9 VRX vent-restrictor .....................................................................................................36
7.4.10 EXT70H/ISO63 interstage-port accessory kit .......................................................................36
For return of equipment, complete the HS Forms at the end of this manual.
Illustrations
Figure Page
1 Maximum allowed rate of pressure rise during venting: pressure against time
(with the pump initially at full rotational speed) ................................................................... 3
2 EXT70H 24 V dimensions (mm) ......................................................................................... 7
3 EXT255H/Hi 24 V dimensions (mm) ................................................................................... 8
4 Typical pumping system with an EXT70H or EXT255H pump .....................................................16
5 Typical pumping system with an EXT70Hi or EXT255Hi pump ...................................................17
6 Correct installation of the inlet-screen .............................................................................18
7 Installation of optional accessories (and spares): EXT255Hi shown .............................................37
Tables
Table Page
1 EXT 70H 24 V / EXT 70Hi 24 V technical data ....................................................................... 9
2 EXT255H 24 V / EXT255Hi 24 V technical data .....................................................................11
3 Checklist of items .......................................................................................................15
4 Vent-restrictor orifice diameter (with atmospheric pressure at the inlet of the vent-valve) ..............21
5 Fault finding .............................................................................................................28

Edwards EXT70H Series Specifications

General

Brand	Edwards
Model	EXT70H Series
Category	Water Pump
Language	English