A705-61-880 Issue M
Page 6 © Edwards Limited 2012. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
Technical data
2.3 Mechanical data
Table 3 - Materials of Construction
Pump casing SG Cast iron
Rotors SG Cast iron
Motor mounting flange SG Cast iron
Pressure Relief Valve (P.R.V) PFA Coated cast iron
Shafts Heat treated carbon steel
Piston rings Heat treated carbon steel
Drive gears Heat treated carbon steel
Bearing housing Stainless steel
Shaft sleeves Stainless steel
Throwers Stainless steel
Valve body Stainless steel
Valve seat Stainless steel
Valve pad Stainless steel
Ancillary brackets Stainless steel
Coolant pipes and fittings Stainless steel
Shaft seals Stainless steel / PTFE
Skids Mild steel
Motor fan cowl Mild steel
Pump casing blanking plates Mild steel
Motor casing Aluminium alloy
Coolant inlet strainer Brass
’O’ rings Viton
Labels Lexan polycarbonate film
Interstage pressure relief valve bushes PEEK
Table 4 - Mechanical data
GV250 GV400
Dimensions See Figure 2 See Figure 2
Mass (without oil)
BOCE 50 Hz motor fitted 612 kg 701 kg
BOCE 60 Hz motor fitted 1417 lbs 1704 lbs
Flange compatibility
Motor flange PCD (50 Hz) 300 mm 300 mm
Motor flange PCD (60 Hz) 12.5 inch 12.5 inch
Motor spigot (50 Hz) 250 mm 250 mm
Motor spigot (60 Hz) 11 inch 11 inch
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