EDP80 60Hz, Bareshaft Pump

EDP pumps are based on Edwards’ oil-free, non-contacting, award-winning, reverse claw mechanism. They provide consistent vacuum at high efficiencies and low costs of ownership. Dry pumps completely eliminate all problems of process contamination and creation of polluted effluent, which are experienced with traditional wet vacuum pump technologies.

Tried and tested dry pumps

• Market leader with many years of process industry experience
• More than 150,000 reverse stage claw pumps in operation worldwide
• EDP series specifically designed for harsh chemical industry applications
• Largest installed base - most leading companies in the chemical and pharmaceutical industries are on our customer list

Designed and tested for safety and reliability

• Temperature control for optimised operating conditions - hot for corrosive applications and cool for other gases, if required
• Over-temperature protection for fault conditions
• Pump explosive mixtures safely
• Dynamically explosion tested and certified by independent authorities
• Leak checked to 10^-3 mbar l/s and type pressure tested from 22 - 75 barg
• Non-brittle ductile iron materials of construction for stator and rotors
• Hermetically sealed magnetic drive option available on EDPs for enhanced safety (EDP250/EDP400)

Designed for long life and easy maintenance:

• 1 year unattended operation
• 3 years between stripdowns
• Bearing cartridges quickly accessible
• Minimum number of seals and bearings
• Designed for a minimum of 25 years life expectancy

Lower cost of ownership

• Easy maintenance at wide intervals
• Low power at operating vacuum
• Adjustable cooling water flow
• Minimum seal purge flow
• No cooling gas injection required
• Cheap to replace rotating parts

• Drying
• Distillation
• Reactor service
• Solvent recovery
• House/Central vacuum
• Evaporation
• Polymerization
• Ethylene oxide sterilization
• Fatty acids and alcohols
• Biofuels
• Corrosive gases
• Flammable gases
• Pervaporation
• Absorption/Desorption
• Crystallization
• Filtration

• Staged compression for optimum temperature profile within the pump and no requirement for cooling gas injection
• Inherently free draining
• Able to handle liquid or particulate carryover
• Short gas path eliminates particulate build-up and corrosion - Edwards’ patented design
• Can flush with solvents, water or steam
• No internal valves to block or corrode and no interstage condensers to create potential for corrosion
• Simple robust construction with ample power ensures reliable operation even during process upsets
• Non-contacting mechanisms gives long life and high reliability
• Pump flammable gases safely
• Pump corrosive gases without corroding
• Designed for long life and easy maintenance - Minimum of 25 years life expectancy
• Lower cost of ownership

Maximum pumping speed
50 Hz	83 m3h-1 / 49 ft3min-1
60 Hz	102 m3h-1 / 60 ft3min-1
Capacity at 10 mbar (7.5 Torr)
50 Hz	75 m3h-1 / 44 ft3min-1
60 Hz	102 m3h-1 / 60 ft3min-1
Ultimate vacuum
50 Hz	0.5 mbar / 0.4 Torr
60 Hz	0.3 mbar / 0.2 Torr
Maximum back pressure
Standard	1150 mbar / 2.2 psig
Optional*	1300 mbar / 4.4 psig
Power consumption at 10 mbar (7.5 Torr)
50 Hz	3.3 kW / 4.4 hp
60 Hz	4.0 kW / 5.4 hp
Standard motor (380 – 400 V, 3 ph, 50 Hz)	5.5 kW
Standard motor (200 – 460 V, 3 ph, 60 Hz)	7.5 hp
Cooling water flow rate (adjustable)
50 Hz	1 – 8 l min-1 / 0.3 – 2.1 gal min-1
60 Hz	1 – 10 l min-1 / 0.3 – 2.6 gal min-1
Cooling water supply pressure	2 – 10 barg / 29 – 145 psig
Seal purge flow (maximum), regulated to 0.3 - 0.5 barg (5 – 7 psig)	20 l min-1 / 0.7 ft3min-1
Seal purge supply pressure (minimum - maximum)	2 – 10 barg / 29 – 145 psig
Noise (max. with exhaust silencer)	73 dB(A)
Weight (with frame and standard motor)
50 Hz	648 kg / 1429 lbs
60 Hz	650 kg / 1433 lbs
Inlet	2” ANSI / DN50
Outlet	1.5” ANSI / DN40
Pumping mechanism	3 stage reversed claw

* Consult Edwards

EDP80	A	B	C	D	E	F	G	H	I
	1423 (56.0)	1254 (49.4)	974 (38.3)	353 (13.9)	443 (17.4)	350 (13.8)	350 (13.8)	700 (27.6)	850 (33.5)

 
1. Pump inlet
2. Pump outlet
3. Fixing hole: Ø18 mm (4 off)
4. Cooling water outlet connection
5. Cooling water inlet connection
6. Nitrogen supply inlet connection