Vacuum pump EDWARDS EDP Series Chemical Dry Pumps
Technology
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
Features and Benefits
- 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
Applications
- 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
SPECIFICATION
| MODEL | EDP80 | EDP160 | EDP250 | EDP400 | |||||
| 50Hz | 60Hz | 50Hz | 60Hz | 50Hz | 60Hz | 50Hz | 60Hz | ||
| Maximum pumping speed | m³/h⁻¹ | 83 | 102 | 163 | 202 | 260 | 320 | 377 | 427 |
| ft³/min⁻¹ | 49 | 60 | 96 | 119 | 153 | 188 | 222 | 251 | |
| capacity at 10 mbat (7.5 torr) | m³/h⁻¹ | 75 | 102 | 153 | 198 | 255 | 315 | 377 | 422 |
| ft³/min⁻¹ | 44 | 60 | 90 | 117 | 150 | 185 | 222 | 248 | |
| Ultimate vacuum | mbar | 0.5 | 0.3 | 0.5 | 0.3 | 0.5 | 0.2 | 0.4 | 0.2 |
| Torr | 0.4 | 0.2 | 0.4 | 0.2 | 0.4 | 0.2 | 0.3 | 0.2 | |
| maximum back pressure standard | mbar | 1150 | 1150 | 1150 | 1150 | ||||
| psig | 2.2 | 2.2 | 2.2 | 2.2 | |||||
| maximum back pressure Optional* | mbar | 1300 | 1300 | 1300 | – | ||||
| psig | 4.4 | 4.4 | 4.4 | – | |||||
| Power consumption at 10 mbar (7.5 Torr) | kW | 3.3 | 4 | 4.9 | 4.9 | 6 | 6 | 7 | 7 |
| hp | 4.4 | 5.4 | 6.6 | 6.6 | 8 | 8 | 9.4 | 9.4 | |
| standard motor (380 -400 V,3ph,50Hz) | kW | 5.5 | 7.5 | 11 | 15 | 18.5 | 25 | ||
| standard motor (200 -460 V,3ph,60Hz) | hp | 7.5 | 11 | 15 | 20 | 25 | 30 | ||
| Cooling water flow rate (adjustable) | l/min⁻¹ | 1-8 | 1-10 | 1-8 | 1-10 | 1-10 | 1-10 | 1-10 | 1-10 |
| gal/min⁻¹ | 0.3-2.1 | 0.3-2.6 | 0.3-2.1 | 0.3-2.6 | 0.3-2.6 | 0.3-2.6 | 0.3-2.6 | 0.3-2.7 | |
| Cooling water supply pressure | barg | 2-10 | 2-10 | 2-10 | 2-10 | ||||
| psig | 29-145 | 29-145 | 29-145 | 29-145 | |||||
|
Seal purge flow (maxiimum ), regulated to 0.3-0.5 barg (5-7 psig) |
m³/h⁻¹ | 20 | 20 | 20 | 20 | ||||
| ft³/min⁻¹ | 0.7 | 0.7 | 0.7 | 0.7 | |||||
| Seal purge supply pressure (minimum-maximum) | barg | 2-10 | 2-10 | 2-10 | 2-10 | ||||
| psig | 29-145 | 29-145 | 29-145 | 29-145 | |||||
| Noise(max with exhaust silencer) | dB(A) | 73 | 78 | 78 | 79 | 82 | 82 | ||
| Weight (with frame and standard motor) | kg | 648 | 650 | 747 | 756 | 756 | 848 | 918 | 960 |
| lbs | 1429 | 1433 | 1647 | 1667 | 1667 | 1870 | 2024 | 2116 | |
| process connection,inlet | 2″ ANSI /DN50 | 3″ ANSI /DN80 | 3″ ANSI /DN80 | 3″ ANSI /DN80 | |||||
| process connection,outlet | 1.5″ ANSI /DN40 | 1.5″ ANSI /DN40 | 2″ ANSI /DN50 | 2″ ANSI /DN50 | |||||
| Pumping mechanism | 3 stage reversed claw | ||||||||
