What kind of oil should be added to the rotary vane vacuum pump? Comprehensive analysis of lubricant selection and maintenance guide
Rotary vane vacuum pumps are common vacuum equipment in the industrial field. The selection of lubricating oil directly affects the performance and life of the pump. This article will provide you with detailed answers to the oil usage issues of rotary vane vacuum pumps based on recent industry hot spots, and provide structured data reference.
1. Recent hot spots in the vacuum pump industry (last 10 days)
| hot topics | Summary of contents | Data source |
|---|---|---|
| Vacuum pump energy-saving transformation | Companies in many places are carrying out vacuum system energy efficiency upgrades, and lubricant selection is a key link | China Industry News |
| Synthetic oil replacement trend | Mineral oil usage dropped by 12%, and synthetic lubricant market share increased to 38% | Industry white paper |
| Vacuum pump maintenance accident | A factory's vacuum pump was damaged due to the wrong addition of engine oil, resulting in a direct loss of over 500,000 yuan. | Safety Alert Notice |
2. Lubricant selection criteria for rotary vane vacuum pumps
1.Base oil type: Choose mineral oil, semi-synthetic oil or fully synthetic oil according to the working environment and temperature
2.Viscosity grade: ISO VG 68 or VG 100 is usually recommended, depending on pump type and operating temperature
| Operating temperature range | Recommended viscosity grade | Applicable oil types |
|---|---|---|
| 10-30℃ | ISO VG 68 | Mineral oil/synthetic oil |
| 30-50℃ | ISO VG 100 | Semi-synthetic/fully synthetic oil |
| 50-80℃ | ISO VG 150 | Specialty synthetic oil |
3. Recommendations for mainstream brand lubricants
| Brand | Product series | Applicable pump type | Oil change interval |
|---|---|---|---|
| Shell | Vacuum Pump Oil 68 | Small and medium-sized rotary vane pumps | 2000 hours |
| Mobil | Mobil SHC 600 Series | High temperature working condition pump | 4000 hours |
| Great Wall | L-DRA 100 | Domestic rotary vane pump | 1500 hours |
4. Precautions for use
1.It is strictly prohibited to mix lubricants of different brands and models, which may produce chemical reactions that may cause the oil to deteriorate.
2. Check the oil level regularly and keep the oil level at 1/2-2/3 of the sight window.
3. It is recommended to replace the lubricating oil after the new pump has been running for 50 hours for the first time.
4. In humid environments, synthetic oil with better anti-emulsification performance should be used.
5. Frequently Asked Questions
Q: Can ordinary engine oil be used instead of special vacuum pump oil?
A: Absolutely not. Ordinary engine oil easily produces oil mist, which will seriously affect the vacuum degree and the life of the pump body.
Q: Does the lubricating oil need to be replaced immediately if it turns black?
A: Not necessarily. The viscosity should be checked first. If the viscosity changes by more than 15%, it needs to be replaced.
Q: Do I need to use different oil products in winter and summer?
A: In areas with large temperature differences, seasonal oil changes are recommended. For details, please refer to the viscosity selection table mentioned above.
6. Maintenance suggestions
| maintenance items | Operation content | cycle |
|---|---|---|
| Oil inspection | Test color, viscosity, acid value | monthly |
| Oil line cleaning | Use special cleaning agent to rinse | every year |
| Oil mist separator | Check and replace filter element | every 2000 hours |
Correct selection and maintenance of rotary vane vacuum pump lubricants can extend the life of the equipment by more than 30% and reduce energy consumption by 15-20%. It is recommended that users choose appropriate oil products based on actual working conditions and establish standardized maintenance records.
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