E2S Two-stage Rotary Vane

Primary vacuum

E2S range – E2S45, E2S65 and E2S85 – perfectly balances performance, cost and usability. A reliable piece of engineering, simply made, well suited for many standard applications that require medium vacuum. It pumps down fast, it handles vapours and it contributes to minimising noise level in your workplace.

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High pumping speed to reduce cycle times and gain productivity

Hydro mode with improved vapour handling capability to fit with humid applications

Low noise level matching with lab environment expectations

Modern industrial two-stage oil sealed rotary vane pump

nEXT has been designed to combine all the latest technological advances in turbomolecular pumps offering pump sizes of 55, 85, 240, 300, 400, 730, 925 and 1250 l/s pumping speeds for Nitrogen these pumps provide end-user serviceability and deliver a truly class leading product.

MODERN DESIGN MADE SIMPLE

Economical product with clean layout
Built-in oil filter to protect pump mechanism from contaminants and prevent oil leaks
Innovative design to increase cooling performance keeping high vapour tolerance
No complex mechanical arrangement to keep technology simple

GREAT USABILITY

Effective product design to accommodate users needs
Easy and pleasant to use and service. Cleaning on site to maximise uptime
Efficient over-temperature protection and low oil level detection (optional features)
Increased safety against operator misuse

E2S with EH booster combination

Standard combinations of E2S two stage rotary pumps and EH mechanical boosters are available for high-capacity demands. Factory pre-assembled, these pumping systems are compact, mobile and easy to use. With a direct start from atmospheric pressure our E2S85-EH1200 stack provides 900 m3/h (@60Hz) effective speed and allows to reach high vacuum range with an ultimate vacuum of 2×10-4 mbar.

Edwards’ new E2S two-stage rotary vane vacuum pump.

It’s modern. It’s versatile. It’s reliable.

EDWARDS E2S - NO ORDINARY VACUUM PUMP

Technical Specifications

		E2S45	E2S65	E2S85
Max. displacement (50Hz)	m³h^-1	47	64	87
Max. displacement (50Hz)	cfm	28	38	51
Max. displacement (60Hz)	m³h^-1	56	77	105
Max. displacement (60Hz)	cfm	33	45	62
Pumping seed (50Hz)	m³h^-1	42	57	78
Pumping seed (50Hz)	cfm	25	34	46
Pumping seed (60Hz)	m³h^-1	50	69	94
Pumping seed (60Hz)	cfm	29	41	55
Ultimate total pressure without gas ballast	mbar	3.0E-03	3.0E-03	3.0E-03
Ultimate total pressure without gas ballast	torr	2.25E-03	2.25E-03	2.25E-03
Ultimate vacuum with gas ballast (position 1)	mbar	6.0E-03	6.0E-03	6.0E-03
Ultimate vacuum with gas ballast (position 1)	torr	4.5E-03	4.5E-03	4.5E-03
Inlet connection	ISO-F / NW	40	40	40
Outlet connection	mm	25	25	25
Max. permitted outlet pressure	bar (g)	0.5	0.5	0.5
Max. permitted outlet pressure	psi (g)	7.3	7.3	7.3
Max. water vapour tolerance	mbar	20	15	13
Max. water vapour tolerance	torr	15	11	10
Max. water vapour capacity (50Hz)	kgh^-1	0.62	0.66	0.73
Max. water vapour capacity (50Hz)	lbh^-1	1.4	1.5	1.6
Max. water vapour capacity (60Hz)	kgh^-1	0.74	0.8	0.87
Max. water vapour capacity (60Hz)	lbh^-1	1.6	1.8	1.9
Weight Approximate	Kg	80	90	100
Motor protection rating	IP	55	55	55
Motor rated power (50Hz)	kW	1.1	1.5	2.2
Motor rated power (50Hz)	Hp	1.5	2	3
Motor rated power (60Hz)	kW	1.3	1.8	2.6
Motor rated power (60Hz)	Hp	1.7	2.4	3.5
Noise level (50Hz)	dB(A)	58	60	60
Noise level (60Hz)	dB(A)	60	62	62
Oil refill capacity (Max.)	litre	4.3	4.8	5.5
Oil refill capacity (Max.)	gal	1.1	1.3	1.5
Cooling type	cooling	Air	Air	Air
Recommended oil		Ultragrade Performance 70

Key features

Vacuum degassing and drying
Heat treatments and vacuum ovens
Vacuum insulation
Plasma treatments (except O2 plasma)
Leak testing
Gas production and handling
Research and development
Backing of high vacuum pumps or systems

Components

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