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Installation and Operation 

12 

2511 

CAUTION ! 

Use only for compressed air applications suitable conduit systems! 

5.3 

Operation 

CAUTION ! 

Observe the basic safety instructions when using the WOB-L

®

 Piston Pump,

chapter 2

5.3.1 

Start-up 

Make sure that when you start the pump, which may arise in the connection lines con-
densates, cannot penetrate into the pump. 

►Action:  suction side condensate separator

Always try to avoid aspiration of foreign body particles! 

►Action:  suction side inline filter

The WOB-L

®

 Piston pump is switched on the power switch.

It is recommended to let the pump run for a few minutes before use. The warm-up im-
proves the eligibility of the pump. 

5.3.2 

Decommissioning 

If vacuum applications with special steam load, the pump needs to run after the process 
with an open vacuum port about 2 minutes and rinsed with atmospheric air.  
This measure is used to cleaning the pump chamber and minimizes the corrosive attack 
wetted material pump parts. 
The WOB-L

®

 Piston pump is switched off using the power switch.

5.4 

Storage 

The pumps are to be stored in a low-dust, interior room within the temperature range from 
+ 5 to + 40 °C and at a relative air humidity < 90%. 
Leave the protective elements on the suction and pressure ports. Another equally good pro-
tection may be used. 

5.5 

Scrap Disposal 

CAUTION ! 

The WOB-L

®

 Piston Pumps must be disposed of in accordance with the 2012/19/E

guideline and the specific national regulations. 
Contaminated WOB-L

®

 Piston Pumps must be decontaminated according to the

 

laws. 

Summary of Contents for Welch WOB-L 2511B-02

Page 1: ...Operation Manual EN Translation of the german original manual WOB L Piston pumps Models 2511C 02 2511B 01 2511 2017 05 16...

Page 2: ...t Prospect IL 60056 USA T 1 847 676 8800 F 1 847 677 8606 welch na gardnerdenver com www welchvacuum com We are constantly working on the further development of all our product models Reprinting or re...

Page 3: ...upply 8 3 2 Protection measure against liquids in the pump 9 3 2 1 Condensate separator Suction side 9 3 3 Areas of Application 9 3 4 Scope of Delivery 9 3 5 Accessories 9 4 Technical Data 10 5 Instal...

Page 4: ...done The user must authorize the operating personnel to do the work that has to be done The personnel must have read and understood the complete Operating Manual before using the WOB L Piston Pumps T...

Page 5: ...afety requirements Part 1 Compressors Part 2 Vacuum pumps DIN EN ISO 2151 2009 01 Acoustics Noise test code for compressors and vacuum pumps Engineering method grade 2 DIN EN 60204 12014 10 Safety of...

Page 6: ...connecting to the electrical power supply system The electrical power supply system must have a protective connector according to DIN VDE 0100 410 IEC 60364 4 41 The protective connector must not have...

Page 7: ...recommended for pumping acidic basic or organic va pors Poisonous Gases Use a condensate separator eg Woulff bottle when pumping poisonous or harmful gases Prevent such substances from leaking out of...

Page 8: ...e disconnection devices current output Motor is provided with a thermal overload protection ex works protecting the vacuum pump from damage or destruction respectively WARNING Should the user change t...

Page 9: ...hemical laboratories in trade and industry Use for vacuum filtration vacuum drying and other vacuum technology applications 3 4 Scope of Delivery The scope of delivery is specified in the supply contr...

Page 10: ...er No for WOB L Piston pump 230V 50Hz inclusive mains connection cable with plug CEE and UK 2511C 02 WOB L Piston pump 115V 60Hz inclusive mains connection cable with plug US 2511B 01 The information...

Page 11: ...the cooling of the pump is guaranteed see chapter 2 3 Note that on the installation location no moisture acts on the pump 5 2 2 Connecting 5 2 2 1 Electrical Connection Before the electrical connectio...

Page 12: ...he pump 5 3 2 Decommissioning If vacuum applications with special steam load the pump needs to run after the process with an open vacuum port about 2 minutes and rinsed with atmospheric air This measu...

Page 13: ...ilding up on the surface of the pump Check the electrical and vacuum connections daily 6 2 Maintenance by the Manufacturer Repairs and maintenance going beyond the extent of the work described in chap...

Page 14: ...rvice workshop Exchange Pump does not generate a vacuum or overpressure Connected apparatus and or connecting elements leaking User or Service workshop Identify and seal the leak replace the seals and...

Page 15: ...ssessment and risk reduction S curit des machines Principes g n raux pour l valuation des risques et la r duction des risques Seguridad de las m quinas Principios generales para el dise o Evaluaci n d...

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