Operating and Installation Instructions A-Series A 08 - A 50 Pneumatic Diaphragm Pumps made of Plastic ought to be studied before installing the pump Original Instruction

3 Introduction ALMATEC air-operated diaphragm pumps are constructed according to the state of the art and they are reliable. Imminent danger by operating error or misuse can lead to damages of properties and/or persons. The pumps are to be applied for the intended use and in a safety-related proper condition only. Each person working on the ALMATEC air-operated diaphragm pumps concerning installation, start-up, handling or maintenance has to read this manual completely and in an attentive way and has to follow all mentioned procedures and safety notes. General description of the machine, appropriate...

4 Example to clarify the ALMATEC pump code: A 15 T T T - B Optional equipment (separate manual): B Barrier chamber C Stroke counting D Diaphragm monitoring F Flange connection PN 10 R Back flushing system T Split connections Type and material E Ball valves, EPDM of product valves: N Ball valves, NBR T Ball valves. PTFE S Ball valves, stainless steel Y Cylinder valves, PE Z Cylinder valves, PTFE Diaphragm material: E EPDM N NBR T PTFE/EPDM-compound Housing material: E PE F PE-conductive T PTFE U PTFE-conductive Size and port dimension ALMATEC Pneumatic diaphragm pump, A-Series The number in brackets,...

6 Performance charts Performance data are in accordance with DIN EN ISO 9906. The data refer to water (20°C), without using of a pulsation damper.

7 Performance data are in accordance with DIN EN ISO 9906. The data refer to water (20°C), without using of a pulsation damper.

8 Recommended installation Product ports The product ports are integrated into the center housing [2]. Different port configurations can be obtained (without using of a screwed pulsation damper only). The standard configuration of the A-Series at delivery is with the suction inlet horizontally at the bottom and the discharge outlet horizontally at the top (figure 7.1). Further possible configurations: „h Suction inlet vertically at the bottom, the discharge outlet horizontally at the top (figure 7.2) To obtain this configuration, the plug of the center housing [8] has to be removed and set in...

9 the line which would affect the suction lift. air filter [20] directly behind the air inlet 9] (not included in A 08 and A 10) prevents the entry of bulk particles. well valid when using a compressor producing warm air which is e.g. often true for truck ompressors. oppage, the pump must be released from the pressure within e system on both fluid side and air supply side. orque values re g bolts should be controlled more frequently (interval proposals are available on request). in The air inlet [19] is located in the middle of the center housing [2]. Before installation make sure that the air...

10 Safety hints „h Installation, operation, and maintenance by qualified staff only. „h Before start-up of the pump anyone should acquaint oneself with the explanations of the chapter troubleshooting (see pages 16/17). Only by this the defect quickly can be realized and eliminated in case of trouble. Problems which cannot be solved or with an unknown reason should be passed on to the manufacturer. „h Before any maintenance and service procedures arising on the pump or on the optional equipments, the complete installation has to be turned off and protected against accidental turn on. This is possible...

11 unit which is send to ALMATEC for diagnosis or maintenance reasons has to be accompanied by a filled out decontamination-sheet. Otherwise a processing is not possible. The decontamination-sheet is enclosed to this manual. Please pay attention to the further safety regulations. Using as submersible pump Consider the following advises when using an A-Series pump as a submersible pump: When immersing an air- operated diaphragm pump, it must generally be ensured that the waste air is deducted above the fluid level with a pipe or similar. The pump must be located vertically upright to guarantee...

12 Disassembly When dismantling a pump the mentioned procedures and safety notes on the pages 9-11 have to be considered generally. Among the different sizes of the A-Series - A 15 to A 50 - only the number of housing bolts [15] varies. Besides, for the sizes A 08 and A 10 the shaft [16] additionally functions as the pilot piston for the air-valve. In these pumps A 08 and A 10, there are no shaft piston rings [18] and no set screws [17] nor an air filter [20]. Please keep these differences in construction in mind when reading the following dismantling instructions. The general design of the ALMATEC...

13 Remove both parts of the shaft piston rings [18] from their grooves carefully (figure 13.1); do not damage the edges in the center housing, a re-assembly of the same piston rings is impossible, they have to be replaced. Unscrew the muffler [21], the air inlet [19] and the air filter [20] out of the center housing [2]. To remove the PERSWING P® air control system, screw off both end caps using the plastic mounting tool delivered with the pump (figure 13.2). Take out main and pilot piston. Push out the air valve housing with the mounting tool turned around (figure 13.3). figure 13.1 figure 13.2...

14 Assembly The re-assembly of the components is principally carried out vice-versa to the dismantling. Here are some additional references. For the installation of the PERSWING P® air control system, first screw in one end cap flushly into the center housing [2]. Insert one of the six O-rings air-valve housing [24] into the end cap from the inside. Moisture the four O-rings [24] of the air-valve housing with a bit of water and push the housing into the center housing [2] using the mounting tool. Take care that it slips in softly. Do never insert the housing violently with a hammer. In case the...

16 Troubleshooting Malfunction Possible Reason Solutions/Remarks pump does not operate air supply line blocked/closed muffler blocked working chambers blocked air control system defective discharge line blocked/closed open air supply clean/replace muffler remove blockage replace air valve system clean/open line pump operates unsteadily piston rings worn air control system worn diaphragm rupture air control system soiled check valve blocked icing replace piston rings replace air control system replace diaphragm, clean pump clean/replace air control system cleaning, removal of bulk particles improve...