Inlet Chemical Trap; Foreline Trap; Outlet Mist Filter; Gas-Ballast Adaptor - Edwards RV3 Instruction Manual

A652–01–880 Issue Y
7.4.5

Inlet chemical trap

The inlet chemical trap protects the pump against chemically active gases.
7.4.6

Foreline trap

Use a foreline trap on a clean pumping system to prevent back-migration of pump-oil vapour into the vacuum system.
7.4.7

Outlet mist filter

The outlet mist filter separates and traps oil droplets in the pump outlet to prevent oil mist discharge.
7.4.8

Gas-ballast adaptor

Fit the gas-ballast adaptor in place of the gas-ballast control on the pump. The adaptor allows fitting of a solenoid
operated gas-ballast valve or a controlled supply of inert gas to the pump.
7.4.9

Gravity oil drain kit

Fit the oil drain kit between the drain port of the outlet mist filter and the oil filler-plug on the pump. When the kit
is fitted, oil will be returned from the mist filter to the pump when the pump is switched off or when the gas-ballast
control is closed (in the '0' position) and there is no process gas being pumped.
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

Exhaust nozzle kit

The exhaust nozzle replaces the outlet flange. Use the exhaust nozzle to connect the pump outlet to 12 mm internal
diameter plastic hose.
7.4.12

Vibration isolators

Vibration isolators reduce vibration and noise when the pump is floor or frame mounted and help to reduce strain
when the mounting area is uneven.
7.4.13

Solenoid operated gas-ballast valve

Fit the gas-ballast valve in place of the built-in gas-ballast control on the pump; the gas-ballast adaptor (see
Section 7.4.8) must be fitted with the solenoid operated gas-ballast valve. The valve provides automatic on/off
control of the gas-ballast and isolates the gas-ballast inlet when the pump is switched off.
7.4.14

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.
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