Elmo Rietschle V-VLV 25-2,3/40-2,3/60-2,3/80-2,3/100-2,3 - Handbuch (Seite 10)

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Contents Page
1. General 3
2. Suitability 3
3. Design and Construction 3
3.1 Models 3
3.2 Construction of 2- and 3- stage VLV 3
3.2.1 General construction details 3
3.2.2 Unloading Bypass valves 4
3.2.3 Cooling 4
3.2.4 Lubrication 4
3.2.5 Oil separation 4
3.2.6 Sealing of stages 4
3.2.7 Drive 4
3.2.8 Standard VLV design 4
3.2.9 Optional extras 5
3.2.10 Typical applications 5
3.2.11 VLV pumps with Roots blowers 5
3.2.12 Advantages of the VLV range 5
3.2.13 Conditions for use of VLV vacuum pumps 5
3.2.14 VLV capability 5
4. Installation and commissioning 5
4.1 Mechanical installation 5
4.1.1 Installation 5
4.1.2 Suction side 5
4.1.3 Exhaust 5
4.2 Electrical installation 6
4.2.1 General 6
4.2.2 Electrical connections for monitoring system 6
4.2.3 Terminal Box Connections 6
4.3 Initial Operation 6
5. Lubrication 7
5.1 Oil lubrication 7
5.2 Oil lubricating pump 7
6. Maintenance 7
6.1 Oil lubricating pump 7
6.2 Oil mist separator 8
6.2.1 Maintenance of oil mist separator 8
7. Fault finding 8
7.1 Pump overload 8
7.2 Loss of vacuum 8
7.3 High oil consumption 8
8. Instructions for storing fresh oil lubricated rotary vane vacuum pumps 8
Data sheets:
D 140 / DA 140 (USA)
➝ VLV-2
D 141 / DA 141 (USA) ➝ VLV-3
Spare parts lists:
E 140
➝ VLV-2
E 141 ➝ VLV-3