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Edwards Vacuum homepage

nES Single Stage Rotary Vane Pumps

Next generation single stage rotary vane pumps

Speak to an expert

An ideal solution for a broad range of requirements

Offering high reliability, low life cycle cost and proven performance, the Edwards nES single stage series represents the next advance in oil sealed rotary vane vacuum pumps for use in a wide of range industries and applications.

A compact design with low maintenance

The nES series is both robust and compact in design.
Low noise levels and vibration minimises environmental impact.
Easy to maintain and high productivity.

Optimised oil return system

The optimised oil return and separation system supports stable pumping performance and minimises oil loss.

Low lifecycle cost

Efficient cooled motors, optimised oil retention, low pump temperatures, high reliability and minimum maintenance provides excellent lifecycle cost compared to other single stage rotary vane pumps.

Flexible and systemisation friendly

The nES range is available with boosters and combination kits to enable you to build a complete systemised ready-to-use unit.
Alternatively combination kits, together with the nES pump and EH mechanical booster, are available as a kit of parts that allows for easy on-site assembly.

Technical Specifications
Knowledge & Insight

	Units	nES40	nES65	nES100	nES220	nES300	nES300S
Maximum displacement (50Hz)	m³h^-1 / cfm	44.0/25.9	59.0/34.8	98.0/57.4	200/117	280/165	330/194
Maximum displacement (60Hz)	m³h^-1 / cfm	53.0/31.2	71.0/41.8	117/68.9	240/141	340/200	385/227
Pumping speed (50 Hz)	m³h^-1 / cfm	38.5/22.7	54.0/31.8	87.5/51.5	179/105	240/141	284/167
Pumping speed (60Hz)	m³h^-1 / cfm	47.0/27.7	64.0/37.7	105/61.8	214/125	290/171	330/194
Ultimate vacuum without gas ballast	mbar / torr	0.5/0.4	0.5/0.4	0.5/0.4	0.08/0.06	0.08/0.06	0.08/0.06
Ultimate vacuum with gas ballast	mbar / torr	1.5/1.1	1.5/1.1	1.5/1.1	0.7/0.5	0.7/0.5	0.7/0.5
Inlet connection	ISO / G	40 ISO-F / G1 ¼	40 ISO-F / G1 ¼	40 ISO-F / G1 ¼	63 ISO-F / G2	63 ISO-F / G2	63 ISO-F/G2
Outlet connection	ISO / G	40 ISO-F / G1 ¼	40 ISO-F / G1 ¼	40 ISO-F / G1 ¼	63 ISO-F / G2	63 ISO-F / G2	63 ISO-F/G2
Max permitted outlet pressure	bar (abs)	1.15	1.15	1.15	1.15	1.15	1.15
Max water vapour pumping rate (50Hz)	kgh^-1 / lbh^-1	0.76/0.80	1.0/1.1	1.60/1.69	1.3/2.8	1.3/1.4	1.3/1.4
Max water vapour pumping rate (60Hz)	kgh^-1 / lbh^-1	0.90/0.95	1.25/1.32	1.70/1.80	1.8/4.0	1.8/1.9	1.8/1.9
Dimensions (LxWxH) approximate	mm	540x284x303	586x320x314	721x400x319	984x606x407	1130x555x450	1117x565x450
Weight approximate	kg / lb	67/148	86/190	104/230	180/397	244/539	244/539
Motor protection rating		IP55	IP55	IP55	IP55	IP55	IP55
Motor rated power (50Hz)	kW	1.3	1.8	3	4.4	5.5	6
Motor rated power (60Hz)	kW / hp	1.3/2	1.8/3	3.6/5	5.5/7.5	6.6/10	7.2/10
Cooling		air	air	air	air	air	air
Noise level (50Hz) air/water	dB(A)	58	60	61	69	72	72
Noise level (60Hz) air/water	dB(A)	60	64	64	73	76	76
Oil refill capacity	litre	1	2	2	7.5	8.5-11.5	8.5-11.5
Recommended oil	Edwards ULTRAGRADE Performance 70 or ULTRAGRADE Endurance Extend 110

	Units	nES470	nES570	nES630	nES750
Maximum Displacement (50Hz)	m³h^-1 / cfm	470/277	570/366	700/412	840/494
Maximum Displacement (60Hz)	m³h^-1/ cfm	570/366	-	840/494	-
Pumping Speed (50Hz)	m³h^-1 / cfm	400/236	470/277	640/377	755/444
Pumping Speed (60Hz)	m³h^-1 / cfm	470/277	-	755/444	-
Ultimate vacuum without gas ballast	mbar / torr	0.08/0.06	0.08/0.06	0.08/0.06	0.08/0.06
Ultimate vacuum with gas ballast	mbar / torr	0.7/0.5	0.7/0.5	0.7/0.5	0.7/0.5
Inlet connection	ISO / G	100 ISO-F/G3	100 ISO-F/G3	100 ISO-F	100 ISO-F
Outlet connection	ISO / G	100 ISO-F/G3	I100 ISO-F/G3	100 ISO-F	100 ISO-F
Max permitted outlet pressure	bar (abs)	1.15	1.15	1.15	1.15
Max water vapour pumping rate (50Hz)	kgh^-1 / lbh^-1	5.0/5.3	7.5/8.0	17/18	24/25
Max water vapour pumping rate (60Hz)	kgh^-1 / lbh^-1	7.5/8.0	-	24/25	-
Dimensions (LxWxH) approximate	mm	1330x866x779	1330x866x779	1563x909x740	1563x909x740
Weight approximate	kg / lb	480/1059	550/1214	760/1678	760/1678
Motor protection rating		IP55	IP55	IP55	IP55
Motor rated power (50Hz)	kW	11	11	18.5	18.5
Motor rated power (60Hz)	kW / hp	13.2/15	-	18.5/25	-
Cooling		air/water	air/water	air/water	air/water
Cooling water flow (if applicable)	L/h	700	800	750	750
Noise level (50 Hz) air/water	dB(A)	72/72	75/2	72/72	75/72
Noise level (60 Hz) air/water	dB(A)	75/72	-	75/72	-
Oil refill capacity	litre	20	20	20-23	20-23
Recommended oil	Edwards ULTRAGRADE Performance 70 or ULTRAGRADE Endurance Extend 110

nES Series Single Stage Rotary Vane Pumps Brochure

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PDF

4.1 MB

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