Edwards E2M30 User Manual

4.8 Connect the pump inlet
Take note of the following informaon when connecng the pump to the vacuum
system. Refer to Accessories on page 44 for details of the accessories menoned below.
▪ For opmum pumping speeds, ensure that the pipeline connected to the inlet-port
is as short as possible and has an internal diameter not less than the inlet-port
diameter.
▪ Support the vacuum pipelines to prevent loading of the coupling-joints.
▪
If necessary, incorporate exible bellows in the system pipelines to reduce the
transmission of vibraon and to prevent loading of coupling-joints. If you are using
exible bellows, ensure that bellows are used which have a maximum pressure
rang which is greater than the highest pressure that can be generated in the
system. It is recommended that manufacturers exible bellows are used.
▪
Use a suitable inlet catchpot if pumping condensible vapours or if using the pump
for very dusty applicaons.
▪
Ensure that sealing surfaces are clean and scratch-free.
Connect the vacuum system to the inlet-port (Figure: General view of the pump on page
11). To make this connecon:
▪ Connect to the NW25 ange supplied: use the NW25 centring-ring and O-ring
supplied.
▪ Remove the NW25 ange and connect to the 1 inch BSP threaded hole.
▪
Use an NW25 to 28 mm bore tube adaptor available as an oponal accessory, refer
to Pump inlet adaptor on page 47.
4.9 Connect the pump outlet
WARNING:
Connect the pump outlet to a suitable treatment plant to prevent the discharge of
dangerous gases and vapours to the surrounding atmosphere. Use a catchpot to
prevent the drainage of contaminated condensate back into the pump.
The exhaust system must be congured so that the maximum pressure at the pump
outlet does not exceed 0.5 bar gauge (1.5 bar absolute, 1.5 x 10
5
Pa) at full pump
throughput.
We recommend ng an oil mist lter to the pump outlet in the following
circumstances:
▪
When using the pump with the gas-ballast control open.
▪
When operang the pump with an inlet pressure greater than 10 mbar for
extended periods.
▪
When frequently pumping down from atmospheric pressure.
The mist lter will trap the oil exhausted from the pump: the oil can be reused if it is not
contaminated.
To connect the pump to the outlet accessories or to the exhaust treatment plant:
▪
Connect 15 mm internal diameter vacuum or plasc hose to the outlet nozzle
(Figure: General view of the pump on page 11).
Page 26
A37310880_V - Installaon

Edwards E2M30 Specifications

General

Brand	Edwards
Model	E2M30
Category	Water Pump
Language	English