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The EVC-1005 Dry Running Claw pump

The EVC-Series pumps are dry contact-less vacuum pumps with modular constructions consisting of compartments: pumping and gear chambers are separated by using labyrinth seals. As two claws rotate in opposite direction, the air will be sucked in the pumping chamber, compressed and discharged under pressure. Two gears for synchronizing of claws rotation are placed inside the gear chamber and lubricated with appropriate gear oil. A built in anti-suck back valve installed in inlet flange will prevent the air from flowing back into the vacuum chamber when the pump is shutdown. The pumps are directly driven by a flanged motor via a coupling. The claws and compression chamber have a TFE (Teflon) coating to protect the pump against corrosion from water in the pumped gasses.

Advantages to the user:

  • High pumping speed
  • Oil free pumping chamber
  • Corrosion protection by teflon coating
  • Air cooling, no cooling water needed
  • Very little maintenancen needed
  • Non contact claw rotation
  • Direct drive
  • Anti-suck back valve to secure vacuum (optional)

Part Number

Ordering information Art.No.
EVC-1005; 3 phase; 400V; 50Hz; 18,5 kW motor 608051
EVC-1005; 3 phase; 400-460V; 50/60Hz; 22 kW motor 608053
EVC-1005; No motor 608055


Specification Unit EVC-1005
50 Hz 60 Hz
Nominal displacement m3/h 950 1140
Ultimate vacuum level mbar 50 50
Vacuum level continuous running mbar 180 to 1000 180 to 1000
Motor power kW 18,5 22
Nominal speed rpm 2850 3450
Noise level (tolerance ±3) dB(A) 82 85
Oil capacity gear box housing ltr 2,8 2,8
Weight approx kg 733 766
Admissible ambient temperature °C 5-40 5-40
Connection inlet DN 100 PN6 100 PN6
Connection outlet DN 100 PN10 100 PN10


Accessoires Art.No.
Non-Return Valve flange fitted DN 100 608061
Elbow to fit inlet dust filter DN100 608062
Inlet dust filter with paper cartridge DN 100 608063
Frequency control unit; controlled at vacuum level 608901


Consumables Art.No.
Repair spray coating; can 400ml 10048900
Gasket kit EVC-1005 C1K549000
Overhaul kit EVC-1005 C1K550000
Gear box oil type EV-Gear Oil-150 (1 ltr) 100500
Gear box oil type EV-Gear Oil-150 (5 ltr) 100502
Gear box oil type EV-Gear Oil-150 (20 ltr) 100503

Pumping speed curve

Pumping speed curve of the EVC-1005 vacuum pump