© Edwards Limited 2012. All rights reserved.
Page 37
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Service, spares and accessories
A373-10-880 Issue R
7.5.7
Solenoid operated pipeline valve
Fit the Pipeline Valve between your vacuum system and the pump inlet to provide additional system protection when
the pump is switched off.
7.5.8
Foreline trap
Use a Foreline Trap on a clean pumping system to prevent back-migration of rotary pump oil vapour into your vacuum
system.
7.5.9
Vibration isolators
The Vibration Isolators reduce transmission vibration and noise when the pump is floor or frame mounted and help
to reduce strain when the mounting area is uneven.
7.5.10
Oil drain extension
Fit the Oil Drain Extension between the oil drain port on the pump and the oil drain-plug to make the drainage of oil
from the pump easier.
7.5.11
Pump inlet adaptor
This is an NW25 to 28 mm bore tube adaptor, supplied with connection hardware. Attach this adaptor to the NW25
pump-inlet to connect 28 mm bore plastic or rubber tube.
7.5.12
Flexible bellows
Use Flexible Bellows to connect the pump-inlet to your vacuum system. We recommend that you use bellows when
you use Vibration Isolators.
7.5.13
Pump outlet adaptor
This is a 3/4 inch BSP to NW25 adaptor. Use this adaptor when you remove the hose adaptor supplied fitted to the
pump outlet to adapt the 3/4 inch BSP thread to NW25 pump inlet.
7.5.14
Gas ballast banjo/elbow assembly
Use this 3/4 inch BSP assembly when a remote ballast supply, or gas ballast valve, is fitted.
7.5.15
Gas ballast valve
Use this to control the gas-ballast remotely. You will also need the Gas Ballast Banjo/Elbow Assembly
(refer to
) when you fit this accessory.
