BOC E2M28, Instruction Manual

Page: 48 / 52

E2M28 and E2M30 Rotary Vacuum Pumps
SERVI
C
E, SPARES AND
ACCESSORIES
PAGE
42
Issue K 42 Jul 05
7.4.7 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.
7.4.8 Foreline Trap
Use a Foreline Trap on a clean pumping system to prevent back-migration of rotary pump oil vapour into
your vacuum system.
7.4.9 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.
7.4.10 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.
7.4.11 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.
7.4.12 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.
7.4.13 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.
7.4.14 Gas Ballast Banjo/Elbow Assembly
Use this
3
/
4
inch BSP assembly when a remote ballast supply, or gas ballast valve, is fitted.
7.4.15 Gas Ballast Valve
Use this to control the gas-ballast remotely. You will also need the Gas Ballast Banjo/Elbow Assembly
(see Section 7.4.14) when you fit this accessory.