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Eifel Pump
(Fuzhou) Corpn.,Ltd.
+86 591-38260798
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ELL Series Liquid Ring Vacuum Pump (With Motor Carrier Design)
Product description
Parameters
ELL Series Liquid Ring Vacuum Pump (With Motor Carrier Design) are displacement pumps of uncomplicated and robust construction with the following particular features：
① nearly isothermal compression；
②oil-free, as no lubrication in the working chamber therefore non-polluting；
③Capable of handling of nearly all gases and vapours；
④ small quantities of entrained liquid can be handled；
⑤easy maintenance and reliable operation；
⑥low noise and nearly free from vibration；
⑦wide choice of materials, therefore applicable nearly everywhere；
⑧shaft not in contact with the medium；
⑨protection against cavitation as standard；
⑩incorporated dirt drain，no metallic contact of the rotating parts。
● General Technical Data
| Pump Type | ELL90 | ELL125 | ELL150 | ELL250 | ELL325 | ELL425 | |
| Synchronous speed(rpm) | 50 Hz | 1500 | |||||
| 60 Hz | 1750 | ||||||
| Max. compression over atmospheric pressure(bar) | 0.3 | ||||||
| Max. admissible pressure difference(bar) | 1.1 | ||||||
| Test pressure above atmospheric pressure(bar) | 3 | ||||||
| Moment of inertia of the rotating pump parts and water filling(kg . m²) | 0.035 | 0.053 | 0.069 | 0.097 | 0.14 | 0.21 | |
| Noise level at a suction pressure of 80 mbar(dB(A)) | 72 | 76 | 78 | ||||
| Max. gas temperature(°C) | Dry gas | 200 | |||||
| Saturated gas | 100 | ||||||
| Service liquid | max. recommended temperature for water as working liquid(°C) |
40 | |||||
| max. admissible temperature for other suitable working liquids(°C) |
80 | ||||||
| max. kinematic viscosity(mm²/s) | 4 | ||||||
| max. density(kg/m³) | 1200 | ||||||
| volume up to shaft level(liter) | 2.4 | 2.8 | 3.2 | 4.0 | 4.2 | 4.7 | |
The combination of several limiting values is not admissible.
● Material Design
| Pump Type | Material Design | |||
| C250S304SM | S304S304SM | S316S316SM | ||
| ELL90,125,150,250,325,425 | ● | ● | ● | |
| Component | Material | |||
| Casing | HT200 | 304 | 316 | |
| Central body | HT250 | 304 | 316 | |
| Guide disc | HT200 | 304 | 316 | |
| Vane wheel impeller | 304 | 304 | 316 | |
| Mechanical seal | X：Ceramic | P：Perbunan | ||
| S：SiC | M：PTFE encapsulated | |||
| A：Carbon | F：304 | |||
| V：Vinton | G：316 | |||
● Applications
Handling and exhausting of dry and humid gases; entrained liquid can be handled during normal duty. The pumps are applied in all fields where a pressure of 33 to 900 mbar must be generated
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CONTACT US
Eifel Pump (Fuzhou) Corpn.,Ltd.
ADD：No.7，Yangyu Rd，1st Tieling Ind.Zone，Minhou，Fuzhou，P.R.China
TEL：+86 591-38260798, 38260736