Rebuilt Edwards Rotary Vane Pumps

Model	cfm	hp	Rebuilt
E2M0.7	0.5	0.15	ask
E2M1.5	1.3	0.3	$925
E2M2	2	0.3	$950
E2M3	2	0.3	$950
E2M8	7	0.5	$1,100
E2M12	10	.75	$1,390
E2M12	new 110V motor		$1,580
E2M18	15	.75	$1,600

Model	cfm	hp	Rebuilt
E2M28	23	1.5	$1,850
E2M30	23	1.5	$1,850
E2M30	new 110V motor		$2,150
E2M40	30	2	$3,000
E2M80	57	3	$4,125
E2M175	126	8.5	ask
E2M275	206	11	ask

The Edwards E2M and E1M pumps are two stage, direct drive, sliding vane, oil sealed pumps. The drive is provided through a flexible coupling by a single or three phase air cooled motor. View more specs on the E2M80.

E1M Model

Model	cfm	hp	Rebuilt
E1M18	15	0.75	$1,250
E1M40	30	2	$2,300
E1M80	module		$1,300
E1M80	57	3	$3,200
E1M175	module		$2,100
E1M175	126	8.5	$4,500
E1M275	206	11	$5,850

RV Model

Model	cfm	hp	Rebuilt
RV3	2	0.5	$960
RV5	4	0.5	$990
RV8	7	.5	$1,175
RV12	10	.75	$1,350

E1/2M18

The E1/2M18 pump is a two-stage, or one-stage direct drive, sliding vane pump. The pump is oil sealed and designed for reliable, long-term operation in both laboratory and industrial environments. The pump is a freestanding unit. The drive is provided through a flexible coupling by a single-phase or three-phase motor.

Specifications	E1M18	E2M18
Displacement at 50 Hz	12.1 cfm (20.5 m³h^-1)
Displacement at 60 Hz	14.7 cfm (25.0 m³h^-1)
Speed at 50 Hz	10 cfm (17.0 m³h^-1)
Speed at 60 Hz	12 cfm (20.4 m³h^-1)
Ultimate vacuum (total pressure)
without gas ballast	2.2 10^-2 Torr	7.5 10^-4 Torr
	(3 x 10^-2 mbar)	(1 x 10^-3 mbar)
with gas ballast	4.8 10^-1 Torr	1.1 10^-2 Torr
	(6.5 x 10^-1 mbar)	(1.5 x 10^-2 mbar)
Inlet connection	NW25
Outlet connection	Nozzle 15 mm external diameter removable from hole tapped 3/4 inch BSP
Maximum outlet pressure	7 psig (0.5 bar gauge)
Maximum inlet pressure for water vapor (Torr/mbar)	38/50	15/20
Maximum water vapor pumping rate	0.65 kg h^-1	0.30 kg h^-1
Weight lb (kg)	70 (32)	79 (36)
Motor power 50 Hz	0.55 kW	0.55 kW
Motor power 60 Hz	0.75 kW	0.75 kW
Oil capacity -maximum (l)	1.4	1.05
minimum (l)	0.9	0.75
Recommended oil	Inland 19

E1/2M40

Specifications	E1M40	E2M40
Displacement at 50 Hz	25 ft³min^-1 (42.5 m³h^-1)
Displacement at 60 Hz	29.7 ft³min^-1 (50.5 m³h^-1)
Speed at 50 Hz	21.8 ft³min^-1 (37.0 m³h^-1)
Speed at 60 Hz	25.9 ft³min^-1 (44 m³h^-1)
Ultimate vacuum (partial pressure)
without gas ballast	3.8 x 10^-2 Torr 5 x 10^-2 mbar	7.5 x 10^-5 Torr 1 x 10^-4 mbar
with gas ballast	3 x 10^-1 Torr 4 x 10^-1 mbar	3.8 x 10^-3 Torr 5 x 10^-3 mbar
Inlet connection	ISO40
Outlet connection	25 mm flange suitable for NW25
Maximum outlet pressure	0.5 bar gauge
Maximum inlet pressure for water vapor	30 Torr (40 mbar)	5.3 Torr (7 mbar)
Maximum water vapor pumping rate	2.4 lb h^-1 (1.1 kgh^-1)	0.4 lb h^-1 (0.2 kgh^-1)
Weight	155 lb (70.5 kg)	159 lb (72 kg)
Motor power 50 Hz - 4 pole	1.1 kW
Motor power 60 Hz - 4 pole	2 hp (1.5 kW)
Standard oil capacity
Maximum	4.8 qt (4.6 liter)	4.3 qt (4.07 liter)
Minimum	2.3 qt (2.2 liter)
PFPE oil capacity
Maximum	-	3.2 qt (3.5 liter)
Minimum	-	1.6 qt (1.32 liter)
Recommended oil (supplied)	Ultragrade 70

E1/2M80

The EM pumps up to the E2M80 are fan-cooled; large pumps are water-cooled but may be operated without water-cooling for high vacuum duties. The different models are each optimized to give the best combination of performance, reliability and cost in relation to the anticipated applications.

Specifications	E1M80	E2M80
Displacement (swept volume)
50 Hz	47.1 ft³min^-1 (80 m³h^-1)
60 Hz	56.5 ft³min^-1 (96 m³h^-1)
Speed (Pneurop)
50 Hz	43.6 ft³min^-1 (74 m³h^-1)
60 Hz	53 ft³min^-1 (90 m³h^-1)
Ultimate vacuum (partial pressure)
without gas ballast	3.8 x 10^-2 Torr 5 x 10^-2 mbar	7.5 x 10^-5 Torr 1 x 10^-4 mbar
with gas ballast	3 x 10^-1 Torr 4 x 10^-1 mbar	3.8 x 10^-3 Torr 5 x 10^-3 mbar
Inlet connection	ISO40
Outlet connection	25 mm flange suitable for NW25
Maximum permitted pressure at outlet	0.5 bar gauge
Maximum inlet pressure for water vapor	22.5 Torr (30 mbar)	3.8 Torr (5 mbar)
Maximum water vapor pumping rate	3.8 lb h^-1 (1.7 kgh^-1)	0.7 lb h^-1 (0.3 kgh^-1)
Weight	210 lb (95 kg)	231 lb (105 kg)
Motor power 50 Hz - 4 pole	2.2 kW
Motor power 60 Hz - 4 pole	4 hp (3 kW)
Standard oil capacity
Maximum	7.3 qt (7 liter)	6.7 qt (6.37 liter)
Minimum	4.2 qt (4 liter)
PFPE oil capacity
Maximum	-	4.2 qt (4.01 liter)
Minimum	-	2.3 qt (2.19 liter)
Recommended oil (supplied)	Ultragrade 70

E1/2M275

Specifications	E1M275	E2M275
Displacement (swept volume)
50 Hz	172 cfm (292 m³h^-1)
60 Hz	206 cfm (350 m³h^-1)
Speed (Pneurop)
50 Hz	150 cfm (255 m³h^-1)
60 Hz	180 cfm (306 m³h^-1)
Ultimate vacuum (partial pressure)
without gas ballast	3.8 x 10^-2 Torr 5 x 10^-2 mbar	7.5 x 10^-5 Torr 1 x 10^-4 mbar
with gas ballast	3 x 10^-1 Torr 4 x 10^-1 mbar	3.8 x 10^-3 Torr 5 x 10^-3 mbar
Inlet connection	ISO 63 blanking flange with seal
Outlet connection	ISO 40 flange center tapped 11/2 in BSP
Maximum permitted pressure at outlet	0.5 bar gauge
Maximum inlet pressure for water vapor	38 Torr (50 mbar)	9 Torr (12 mbar)
Maximum water vapor pumping rate	20.3 lb h^-1 (9.2 kg h^-1)	5.1 lb h^-1 (2.3 kg h^-1)
Recommended cooling water flow at 20 °C	0.53 g min^-1 (120 l h^-1)
Weight lb (kg)	484 (220)	495 (225)
Motor power 50 Hz - 4 pole	10 hp (7.5 kW)
Motor power 60 Hz - 4 pole	11 hp (8.5 kW)
Standard oil capacity maximum	29.5 qt (28 l)
Standard oil capacity minimum	20 qt (19 l)
PFPE oil capacity maximum	-	19 qt (18 l)
PFPE oil capacity minimum	-	7 qt (7 l)
Recommended oil	Inland 70 Ultra
x Fitted with thermostatic control valve	-	-