Solenoid Operated Pipeline Valve; Foreline Trap - Edwards E1M18 Instruction Manual

10.2.6 Solenoid operated pipeline valve

Fit the pipeline valve between the vacuum system and the pump inlet to provide
additional system protection when the pump is switched off.

10.2.7 Foreline trap

Use a foreline trap on a clean pumping system to prevent back-migration of rotary pump
oil vapour into the vacuum system.
10.2.8 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.
10.2.9 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.
10.2.10 Pump inlet adaptor
This is a 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.
10.2.11 Flexible bellows
Use flexible bellows to connect the pump-inlet to the vacuum system. We recommend
the use of bellows when using vibration isolators.
10.2.12 Pump outlet adaptor
This is a 3/4 inch BSP to NW25 adaptor. Use this adaptor when removing the hose
adaptor supplied fitted to the pump outlet to adapt the 3/4 inch BSP thread to NW25
pump inlet.
10.2.13 Gas ballast banjo/elbow assembly
Use this 3/4 inch BSP assembly when a remote ballast supply or gas ballast valve is
fitted.
10.2.14 Gas ballast valve
Use this to control the gas-ballast remotely. The gas ballast banjo/elbow assembly will
also be required (refer to
this accessory.
A34310880_T - Spares and accessories
Gas ballast banjo/elbow assembly on page
Page 48
48) when fitting