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Edwards E2M40 vacuum roughing pump with 2HP motor


Edwards E2M40 Vacuum Roughing Pump with 2HP Motor
The following information was obtained from the manufacturer's website...
Edwards E2M40 series two stage oil sealed rotary vane vacuum pumps are renowned for their high ultimate vacuum, rapid pumping speeds, quiet operation and ability to handle water vapour. These direct drive rotary vane pumps are inherently compact and vibration free, and with their finger-proof fan and coupling housings they offer excellent operator protection.
A comprehensive range of accessories is available to allow use on the widest variety of vacuum applications.
This pump is suitable for most duties and is safe to handle non-flammable gases and vapours within the normal operating parameters of the pump.
* Vacuum metallurgy processes
* Thin film coating technologies
* Pharmaceutical freeze drying
* Refrigeration and air conditioning system evacuation, drying, and backfilling
* Transformer and cable drying and impregnation, insulating oil treatment plant
* Cryogenic vessel evacuation
* Vacuum drying and distillation in chemical industries
* Semiconductor device manufacture
* Backing pump for high vacuum applications
* Advanced pressurised oil circuit to give effective lubrication even under high gas loads
* When the pump is switched off, the spring loaded distributor valve provides oil and air suck-back protection
* Industrial roller bearings on drive shaft for ultimate reliability and long, trouble free life
* Full height oil sight glass for easy checking of oil level and condition
* Easy change oil filter, with oil filter condition gauge on larger models
* Central inlet port to allow easy mounting of mechanical booster pump if required
* A wide range of accessories to match your application needs
* The pumps and accessories can be supplied either as individual components or as fully systemised, factory-tested combinations
Ultimate vacuum (total pressure)
1.0 x 10-3 mbar / 7.7 x 10-4 Torr
7.0 x 10-3 mbar / 5.4 x 10-3 Torr
25 mm flange suitable for NW25
Maximum inlet pressure for water vapor
Reliable system protection devices
Every pump has protection devices to prevent oil and air suck-back into the vacuum system if the pump stops while under vacuum. A variety of protection devices are used, depending on the pump size and cost, but emphasis is always placed on reliability and simplicity. When you use gas ballast on some of the pumps, you must use a solenoid operated gas ballast control valve to prevent air suck-back.
Positive Pressure Oil Lubrication
The EM pumps incorporate a well proven positive pressure oil lubrication system which as been developed by Edwards to ensure correct lubrication in all duty modes and particularly to prevent oil starvation with high gas loads.
An integral oil pump ensures that a more than adequate oil flow is pumped throughout the stator/rotor assembly at all times.
This oil lubrication system means that the level of oil in the reservoir is less critical than with other pump designs. All pumps can operate with oil levels as low as 50-70 of the maximum. A full length, easily visible oil level sight glass allows you to conveniently monitor the oil level.
The EM pumps have a gas ballast valve. The valve is used to introduce a suitable gas into the stator during the compression stage: this prevents condensation of vapors inside the pump, dilutes and ejects corrosive gases and purges the oil of gases and vapors. Therefore, the use of gas ballast reduces oil degradation and pump corrosion.
The EM pumps maintain Edwards' reputation for quiet operation pumps with a typical noise level of 65dB(A).
The EM pumps, with suitable accessories, can partner a variety of other types of pump in vacuum systems for industry and for research. A special feature of the E2M40 is the central vacuum inlet which enables you to fit a mechanical booster pump with a minimum overhang, to create compact combination pumping systems.
The advanced lubrication system allows the EM pumps to work with wide oil level tolerances, which reduce the need to top-up the oil.
All EM pumps are constructed with internal dowels, which reduce the need for skilled setting of tolerances, when the pump is dismantled. The pumps are designed so that all key components are easily accessible. The exhaust valve seals and oil distributor seals are exposed after the top cover is removed. The shaft seal can be replaced quickly without stripping down the pump.
* Delivery to Alaska or Hawaii will require additional postage
* NO RETURNS are accepted for software items, books, CDs, DVDs, Blue Ray disks, or Webkinz items
* NO RETURNS are accepted for lasers, optical components, or parts susceptable to damage by electrostatic discharge (ESD), UNLESS item is returned unopened (ESD or inner package seals unbroken). In case of brand new items in sealed retail packaging, all seals must be unbroken
* RETURNS are accepted "no questions asked" for all other items provided:
* Item is returned in same condition as it was received, including packaging material. Please use caution when opening item to preserve return privilege
* Item is returned to seller by carrier and method providing proof of delivery to seller



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