EM4/EM8 Compact single stage rotary vane pumps

The EM 4 and EM 8 are single-stage rotary vane lubricated pumps with oil recirculation. The rotor is keyed directly onto the motor shaft.

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Details

EM4/EM8

Ultimate pressure:≤ 2 and ≤ 20 mbar

Pumping speed:4÷10 m³/h

The EM 4 and EM 8 are single-stage rotary vane lubricated pumps with oil recirculation.
The rotor is keyed directly onto the motor shaft.
The oil tank is provided with a system for separating the oil mists from the exhaust air.

The gas ballast, except for EM4, prevents condensation inside the pump when small quantities of steam are sucked.

The EM 4 and EM 8 pumps are suitable for the evacuation of closed systems or to operate at a constant vacuum included in the following range:

EM 4 – EM 8 from 2 to 300 mbar (absolute)

EM 4 B - EM 8 B from 20 to 850 mbar (absolute)

ACCESSORIES

The following accessories are useful for the installation and for the control of the pump operation parameters:

External suction filter
Vacuum gauges

				EM 4	EM 8
Pumping speed		m³/h	50Hz	4	8,5
Pumping speed		m³/h	60Hz	4,8	10
Ultimate pressure with gas ballast (abs.)		mbar		≤ 2 (≤ 20 /B)	≤ 2 (≤ 20 /B)
Motor power		kW	50Hz	0,12	0,25
Motor power		kW	60Hz	0,15	0,30
Motor speed		rpm	50Hz	3000	3000
Motor speed		rpm	60Hz	3600	3600
Water vapour tolerance		mbar		/	20
Water vapour pumping capacity		kg/h		/	0,125
Lubricant charge		l		0,1	0,15
Sound pressure level		dB(A)	50Hz	57	58
Sound pressure level		dB(A)	60Hz	59	60
Dimensions	L x B x H	mm		236x129x139	300x166x139
Weight		kg		5,4	11,7
Connections*		Inlet		1/8” Gas	3/8” Gas