Edwards Vacuum Pumps: EO50/60 Diffusion Pump

Catalog B10, F40

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Product ID : B30211090

B30207110 Type=with fan|Voltage=110-125 V Edwards Model EO50/60 Diffusion Pump B30211090 Type=no fan|Voltage=90 V Edwards Model EO50/60 Diffusion Pump B30207240 Type=with fan|Voltage=230-250 V Edwards Model EO50/60 Diffusion Pump B30211180 Type=no fan|Voltage=180 V Edwards Model EO50/60 Diffusion Pump

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Description

The Model EO50/60 is a compact, fast warm-up air-cooled diffusion pump supplies complete with high integrity inlet Co-seal, and flange clamping ring. The jet assembly is removeable for easy cleaning. It meets the need for a low-cost, high vacuum pump for use in desk top or mobile scientific instruments, leak detectors, tube pumping systems and general laboratory applications.

In many applications the rapid warm-up capability will enable the EO50/60 to be used without an isolation valve. However, the pump is not intended for use on valveless systems where rapid cycling from atmospheric pressure through the hot pump is required.

Models are available with and without cooling fans. Models without fans are available as replacement diffusion pumps for H.P. MSD instruments.

Specs

Technical Data
Pumping speed (air)	60 e/s (27 e/s baffled)
(hydrogen)	70 e/s (50 e/s baffled)
Fluid Charge	18.5 mL
Recommended fluid	Santovac 5, Silicone DC704EU
Minimum backing pump displacement	0.59 cfm
Recommended backing pump	RV-3
Inlet connection	NW50 flange
Backing connection	NW10 flange
Heater power	200 W or 250 W
Warm-up time to operating temperature	4 min
Weight	4.4 lb
Minimum cooling air flow	2.7 cfm

Fluid	Critical backing pressure (torr)	Ultimate pressure (torr)
Santovac 5	0.45	3.8 x 10^-8
Silicone DC702	0.9	3.8 x 10^-6
Silicone DC704EU	0.6	3.8 x 10^-7
Silicone DC705	0.45	3.8 x 10^-7
Apiezon® C	0.53	3.8 x 10^-7

Dimensions

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