E2M series vacuum pumps

  • Description
  • Specification
  • Technical specifications
  • Application

Description

Edwards’ E2M series two-stage oil vane rotary pumps are known for their high ultimate vacuum, high pumping speeds, quiet operation and steam capability.
They are inherently compact and vibration-free, and with the added protection of a fan and clutch housing, they are safe for the operator.
The wide range of accessories available allows the E2M pumps to be used in a wide variety of vacuum applications.

Specification

Process reliability and stability – effective lubrication even under high gas loadings
Robust design and process cleanliness – protection against back suction of air and oil
Performance and service life – drive shaft equipped with industrial roller bearings
Guaranteed peace of mind – tried and tested industry standard for years
Stability – high vacuum performance

Technical specifications

Units of measurementE2M40E2M80E2M175E2M275
Efficiency
50 Hzm3h-142,580178292
60 Hzm3h-150,596214350
Pumping speed
50 Hzm3h-13774160255
60 Hzm3h-14490196306
Number of stages2222
The ultimate vacuum
Equalization valve closedmbar1 x 10-3 1 x 10-3 1 x 10-3 1 x 10-3
Equalization valve openmbar5 x 10-3 5 x 10-3 5 x 10-3 5 x 10-3 
Final vacuum with Fomblin oil
Without equalization valvembar1 x 10-2 1 x 10-2 1 x 10-2 1 x 10-2 / 7,7 x 10-3
Inlet valveISO40ISO40ISO63 blind spigot with sealISO63 blind spigot with seal
Outlet valveNW25NW25ISO40ISO40
Maximum outlet pressurebar (abs)0,50,50,50,5
Maximum inlet steam pressurembar752012
Maksymalna szybkość pompowania pary wodnejkg h-10,20,32,42,5
Weightkg75102204222
Motor safety classIP55IP55IP55IP55
Engine power
50 HzkW / KM1,1 / 1,52,2 / 35,5 / 7,57,5 / 10
60 HzkW / KM1,5 / 23 / 46,5 / 8,58,5 / 11
Standard oil capacity
Maximuml46,32528
Minimuml2,241618
PFPE oil capacity
Maximuml441818
Minimuml2,22,26,57
Recommended oilUltragrade 70Ultragrade 70Ultragrade 70Ultragrade 70
PFPE versionFomblin ® Y06/6Fomblin ® Y06/6Fomblin ® Y06/6
Noise level generateddB (A)65657575
Water cooling requiredlmin-11,32

Application

• Metallurgy – vacuum processes
• Thin film techniques
• Pharmaceutical lyophilization
• Refrigeration and drying systems, air conditioners