b06407480 - 30B5M, 480V, 3Ø, 50/60 Hz with Terminal Box

30B5M, 480V, 3Ø, 50/60 Hz with Terminal Box

B06407480

Overview

The Edwards 30B5M vapor booster pumps offer higher pumping speeds, of up to 15000 l s-1 at pressures intermediate between mechanical boosters and diffusion pumps. Vapor boosters from Edwards have been proven in the field for over 30 years. With a constant program of updates and modernization, with input from OEM's and end users, combined with inherent reliability, ease of use and tolerance to various inlet and exhaust pressures they have been used extensively in metallurgy and coating industries as well as other specialist applications.

Technology

Vapour booster pumps operate in a similar way to vapour diffusion pumps but, in addition to having annular jets, they have an ejector stage which greatly boosts the throughput of the pump. The ultimate pressure of these pumps is around 10-4 to 10-5 mbar above which the pumps exhibit considerable pumping speed for permanent gases. High critical backing pressures allow the use of relatively small mechanical backing pumps. The pumps are used in the 10-1 to 10-4 mbar range where rotary pumps are at their limit and ordinary diffusion pumps exhibit instability.

These pumps are most useful in pumping contaminated systems and high loads of hydrogen, hence their use in metallurgical and chemical processes.

Applications

  • Vacuum metallurgy
  • Distillation, drying and degassing
  • Thin film coating and metallizing
  • Large-scale research

Features and Benefits

  • Very large pumping speed at high operating pressures
  • Very high throughput at operating pressures
  • Quick crossover for excellent pumpdown times
  • Industry proven for over 40 years and continuously updated to suit OEM and end-user requirements
  • Excellent reliability
  • Boiler access now at both ends for ease of cleaning

Technical Data

Pumping speed (air) 12500 ls-1
Pumping speed (hydrogen) 15000 ls-1
Maximum throughput 300 mbar ls-1

225 Torr ls-1
Critical backing pressure 5.3-6 mbar
(with AP201 fluid) 4-4.5 Torr
Recommended backing pump displacement 290 m3h-1

171 ft3min-1
Recommended backing pump† GXS450, E2M275
Recommended fluid Apiezon® AP201
Fluid charge 55 litre / 52 qt
Inlet connection 12 x 20.60 holes on 686.0 PCD
Backing connection 4 x 16.70 holes on 235.0 PCD
Water connection 1 inch BSP
Heater power 22.5 kW / 30 hp
Warming up time for full performance at
maximum heater input 60 min
Minimum water flow inlet 1950l/h@ 25⁰C/ 8.5 US gal min-1 @ 25⁰ C
Weight 620 kg / 1367 lbs

† These are given for guidance, please contact Edwards for a recommendation of pump combinations best suited for your application.

Performance

Dimensions

Heaters may be withdrawn either end; allow 1524 mm for this purpose.
A = Dia. 100 mm boiler cleaning point.
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