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YBI-FLOW
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+886-4-27065206
YLC Series Liquid Ring Vacuum Pump
YLC Series Liquid Ring Vacuum Pump (In Close coupled design) are displacement pumps of uncomplicated and robust construction with the following particular features：
– Nearly isothermal compression
– Oil-free, as no lubrication in the working chamber therefore non-polluting
– Capable of handling of nearly all gases and vapour
– Small quantities of entrained liquid can be handled
– Easy maintenance and reliable operation
– Low noise and nearly free from vibration
– Wide choice of materials, therefore applicable nearly everywhere
– Shaft not in contact with the medium
– Protection against cavitation as standard
– Incorporated dirt drain，no metallic contact of the rotating parts.
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Technical Details
- General Technical Data
- Material Design
- Applications
- The combination of several limiting values is not admissible.
| Pump Type | YLC25 | YLC50 | YLC90 | YLC125 | YLC150 | YLC250 | YLC325 | YLC425 | |
| Synchronous speed(rpm) | 50 Hz | 3000 | 1500 | ||||||
| 60 Hz | 3500 | 1750 | |||||||
| Max. compression over atmospheric pressure(bar) | 0.3 | ||||||||
| Max. admissible pressure difference(bar) | 1.1 | ||||||||
| Test pressure above atmospheric pressure(bar) | 1 | 3 | |||||||
| Moment of inertia of the rotating pump parts and water filling(kg . m²) | 0.003 | 0.0095 | 0.035 | 0.053 | 0.069 | 0.097 | 0.14 | 0.21 | |
| Noise level at a suction pressure of 80 mbar(dB(A)) | 68 | 69 | 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) | 0.3 | 0.4 | 2.4 | 2.8 | 3.2 | 4.0 | 4.2 | 4.7 | |
| Pump Type | Material Design | ||
| C250S304SM | S304S304SM | S316S316SM | |
| YLC25,50 | ● | ● | ● |
| YLC90,125,150,250,325,425 | |||
| 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 | ||
- 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
