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Eurovacuum EVD-series View the EVD-series catalog (pdf) Operating Principle:
Eurovacuum’s Double Stage Oil Sealed Rotary Vane Pump operates according to the rotary vane principal. The rotor is eccentrically positioned in the pump cylinder and has machined slots for sliding vanes. The centrifugal force of the rotation pushed vanes out these slots and towards the wall of the cylinder. The gas enters the vacuum pump inlet then passes through a built-in anti-suck valve that prevents the pump from rotatingbackwards and into the cylinder. The gas is compressed and pushed out to the second stage of the pump. The proces of the second stage is the same as the first stage and it will compress the gas to an higher pressure. Features:
Euro vacuum’s EVD pump is Double Stage, Air-Cooled and Direct Driven.
Compact Design- Reliability & Durability- Easy to maintain and operate.
Simple installation, design requires no belts, forced oil pump. Quiet Operation Anti-Suckback Valve
A valve is built into the intake of the pumps. This “anti-suckback valve” is protected by a metal wire-mesh filter. During standstill of the pump (for example due to shutting down or a power failure) the valve closes the intake. This prevents the pressure from rising in the connected chamber while the pump is vented at the same time. Any suckback of pump oil into the vacuum system is thus also effectively prevented. This blocking process operates under all operating conditions below 800 mbar and even when the gas ballast valve is open. Standard Equipment:
Composite Vane - High efficiency Motor - Oil level sight glass - Wire mesh inlet filter screen - Anti-suck back valve - Gas ballast valve.  | EVD-6
Pumpspeed: 5,4 m3/h
Partial pressure: 10-4 mbar
Total pressure: 4x10-3 mbar
Motorpower: 0,37 kW
Connections: 25 KF
More info | EVD-12
Pumpspeed: 10,8 m3/h
Partial pressure: 10-4 mbar
Total pressure: 4x10-3 mbar
Motorpower: 0,37 kW
Connections: 25 KF
More info |  | EVD-24
Pumpspeed: 21,6 m3/h
Partial pressure: 10-4 mbar
Total pressure: 4x10-3 mbar
Motorpower: 0,75 kW
Connections: 25 KF
More info | EVD-36
Pumpspeed: 32,5 m3/h
Partial pressure: 10-4 mbar
Total pressure: 4x10-3 mbar
Motorpower: 0,75 kW
Connections: 25 KF
More info |  | EVD-48
Pumpspeed: 50 m3/h
Partial pressure: 10-4 mbar
Total pressure: 4x10-3 mbar
Motorpower: 1,5 kW
Connections: 40 KF
More info | |  | EVD-60
Pumpspeed: 65 m3/h
Partial pressure: 10-4 mbar
Total pressure: 4x10-3 mbar
Motorpower: 2,2 kW
Connections: 40 KF
More info | EVD-90
Pumpspeed: 90 m3/h
Partial pressure: 10-4 mbar
Total pressure: 4x10-3 mbar
Motorpower: 3,0 kW
Connections: 40 KF
More info | 
| EVD-160
Pumpspeed: 160 m3/h
Partial pressure: 10-4 mbar
Total pressure: 7x10-3 mbar
Motorpower: 5,5 kW
Inlet connection: 63 ISO-K
More info | EVD-270
Pumpspeed: 270 m3/h
Partial pressure: 10-4 mbar
Total pressure: 7x10-3 mbar
Motorpower: 7,5 kW
Inlet connection: 63 ISO-K
More info |  | EVD-450
Pumpspeed: 450 m3/h
Partial pressure: 10-4 mbar
Total pressure: 7x10-3 mbar
Motorpower: 15 kW
Connections: 100 ISO-K
More info | EVD-630
Pumpspeed: 630 m3/h
Partial pressure: 10-4 mbar
Total pressure: 7x10-3 mbar
Motorpower: 15 kW
Connections: 100 ISO-K
More info |
Also these products are conform CE-norms, see EC Attestation of Conformity
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