Edwards E2M28 User Manual

▪ Avoid high levels of heat input to the pump from the process gases, otherwise the
pump may overheat and seize, and cause the motor thermal overload device to
open.
▪ If using the pump in a high ambient temperature with a high gas throughput, the
temperature of the pump body may exceed 70 °C. We recommend the use of
addional guarding to prevent contact with hot surfaces under these condions.
▪ Make sure that the exhaust pipeline cannot become blocked. If an outlet-isolaon
valve is ed, make sure the pump cannot be operated with the valve closed.
▪
Provide for a purge of inert gas when the pumping system is shut down, to dilute
dangerous gases to safe concentraons. A suitable gas-ballast control valve for
introducon of purge gas into the pump is available as an accessory (refer to Gas
ballast valve on page 47).
Contact our applicaon team for further advice on diluon requirements if required.
4.3 Unpack and inspect
1.
Remove all packing materials and protecve covers and check the pump. If the
pump is damaged, nofy the supplier and the carrier in wring within three days;
state the item number of the pump together with the order number and the
supplier's invoice number. Retain all packing materials for inspecon. Do not use
the pump if it is damaged.
2. Check that the package contains the items listed. If any of these items are missing,
nofy the supplier within three days.
If the pump is not to be used immediately, replace the protecve covers. Store the pump
in suitable condions, as described in Storage on page 41.
Table 8 Checklist of items
Quanty Descripon
Check (ü)
1 Rotary vacuum pump
r
(1) Fing pack containing the following:
1 NW25 centring-ring
r
1 O-ring for centring-ring
r
1 Receptacle connectors*
r
* Various sizes: supplied with single-phase motors except for pumps with item numbers
A37316903, A37317984 and A37325984.
4.4 Locate the pump
WARNING:
Aach mechanical liing equipment to the eye on the pump. Failure to do so can
result in injury to people or damage to the pump. Refer to Mechanical data on page
13 for the mass of the pump.
The pump can be either free-standing on its box secon skids, or be xed by bolts
through the four xing holes in the box secon skids, or be used with vibraon isolators.
Page 18
A37310880_V - Installaon

Edwards E2M28 Specifications

General

Type	Rotary Vane Pump
Inlet Connection	1 inch BSP
Inlet Port	1 inch BSP
Ultimate Vacuum (with gas ballast)	1 x 10-2 mbar
Motor Power	1.1 kW