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Summary of Contents for Almatec AHD Series
- Page 1 OPERATING AND INSTALLATION INSTRUCTIONS High-Pressure Diaphragm Pumps made of Plastic AHD Series AHD 15 AHD 25 AHD 40 Original Instruction Read carefully before pump installation...
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Page 2: Table Of Contents
AHD Series · Page 2 CONTENTS Page Introduction 1.1. General description of the machine, appropriate use and residual dangers 1.2. Storage 1.3. Codesystem Technical data 2.1. Performance charts 2.2. Dimensions Installing the pump 3.1. Installation into the piping system 3.1.1. Product ports 3.1.2. -
Page 3: Introduction
The appropriate use of an Almatec high-pressure diaphragm pump of the AHD series refers to the liquid (or sludge) transport taking into account the operation parameter mentioned in this manual and in compliance of the given terms for commissioning, operation, assembly, disassembly and maintenance. - Page 4 This code, the serial number and the year of construction are noted on the identification plates on the pump itself. Based on the ALMATEC pneumatic diaphragm pump range, ALMATEC high pressure pumps AHD 15, AHD 25, AHD 40 have especially been developed for the requirements of feeding filter presses. Due to the integrated pressure transmission, they can achieve a discharge pressure of 15 bar (218 psig) with an air pressure of 7 bar (100 psig).
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Page 5: Technical Data
The data refer to water (20°C/68°F), under using of a compressor Atlas Copco VSG30 and calibrated measuring equipment. The specified performance data are warranted by ALMATEC in accordance with DIN EN ISO 9906. The blue lines state the air consumption in Nm³/min. - Page 6 AHD Series · Page 6...
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Page 7: Dimensions
AHD Series · Page 7 2.2. Dimensions AHD 15 312 152 336 316 20 37 DN15/PN16 236 276 24 R 1/4" 263 53 150 177 5 20 40 112 M8 AHD 25 421 200 412 392 20 44 DN25/PN16 336 376 36 R 1/2"... -
Page 8: Installing The Pump
If pressurised air chambers are positioned beyond the pump discharge, these have to be disconnected from the pump by non-return valves. As the ALMATEC high pressure pumps regulates itself automatically according to the pressure of the filter press, additionally influencing the pump by a pressurised regulated air chamber cannot be permitted on principle. -
Page 9: Start-Up And Operation Of The Pump
When installing the pump into boards or cabinets, it has to be ensured that cold air does not get caught behind the muffler. ALMATEC high pressure pumps do not require any lubrication. It has to be secured, that no oil can enter the pump. In applications with a tendency to freezing at the waste air exhaust, good experiences in practise have been achieved by pre-heating the driving air to increase the distance to the dew point of the air. -
Page 10: Further Safety Hints
The ideal combinative effect of ALMATEC high pressure pumps and filter presses is illustrated very well by the automatic adaptation to pressure and flow rate. When beginning to fill the empty press, the low discharge pressure results in a high flow velocity for fast filling. -
Page 11: Additional Temperature Hints
Especially when deliver critical liquids, wear parts, like diaphragms, should be replaced within a preventive maintenance. The use of non-original ALMATEC spare parts and structural changes lead to the lapse of the warranty immediately. When operating such a pump, damages of properties and/or persons cannot be excluded. -
Page 12: Providing Spare Parts
(if compatible with rinsing agent) to facilitate the separation after a certain waiting period. The general design of the ALMATEC high pressure pumps is simple. Every pump comes along with a mounting tool for the air-valve system [22]. Take out the muffler [30] installed onto the center block [16] before dismantling the pump to protect it against damages during the disassembly. -
Page 13: Suction And Discharge Valves
AHD Series · Page 13 4.2. Suction and discharge valves Image 1 Image 2 Lay down the pump housing [1] on its outer surface. Loosen lock pin discharge valve [8] and remove. Turn the discharge valve [7] along its longitudinal axis by 180° using a suitable round bar (Image 1). After ca. 70°... -
Page 14: Dual Stage Housing
AHD Series · Page 14 Image 5 Image 6 Now, a supporting disc [31] is visible on each side which can be disassembled as follows: Screw two suitable screws (e.g. two housing bolts) as well approx. 10 mm deep into the threaded bores of the on the left side hand supporting disc [31]. -
Page 15: Assembly Of The Elements Of Construction
AHD Series · Page 15 5. ASSEMBLY OF THE ELEMENTS OF CONSTRUCTION 5.1. Center block ® 5.1.1. Air control system PERSWING P To install the air control system PERSWING P® [22], first screw in one end cap flushly into the center block [19]. -
Page 16: Suction And Discharge Valves
AHD Series · Page 16 5.4. Suction and discharge valves The inner parts of the pump housings [1] have to be re-assembled exactly vice versa to the way described for the disassembly. Ensure that the suction [5] and discharge valves [7] are pushed into their extreme position and that the bores in the pump housings [1] (at the bottom of the liquid camber) and the suction valves [5] fit to each other. -
Page 17: Testing Advises
6.2. Correct function and sealing The fully assembled ALMATEC high pressure pump has to be equipped with an air supply as well as temporary suction and discharge lines both leading to a water containment. The dry suction capacity can be checked with a vacuum gauge by closing the suction line carefully complete. -
Page 18: Troubleshooting
AHD Series · Page 18 7. TROUBLESHOOTING Malfunction Possible Reason Solutions/Remarks pump does not operate air supply line blocked/closed open air supply muffler blocked clean/replace muffler working chambers blocked remove blockage air control system defective replace air valve system discharge line blocked/closed... - Page 19 AHD Series · Page 19 Malfunction Possible Reason Solutions/Remarks pumps operates, however suction pump operates too fast start more slowly capacity insufficient operation beyond physical limits adjust installation cavitation check, cool down operation beyond pump capacity adjust installation resp. install...
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Page 20: Spare Part List
AHD Series · Page 20 8. SPARE PART LIST Pump size AHD 15 AHD 25 AHD 40 Item Pc. Description Material Part number Part number Part number Pump housing 3 15 510 52 3 25 510 52 3 40 510 52 Tension disc 1.4301... -
Page 21: Exploded View
AHD Series · Page 21 9. EXPLODED VIEW... -
Page 22: Optional Equipment
AHD Series · Page 22 10. OPTIONAL EQUIPMENTS ALMATEC high pressure diaphragm pumps are available with various optional equipments. Whether the pump is equipped with options can be derived from the pump code. 10.1. Stroke counting (optional equipment code C) 10.1.1. -
Page 23: Diaphragm Monitoring
AHD Series · Page 23 10.2. Diaphragm monitoring (optional equipment code D) Although ALMATEC diaphragms with integrated metal core are designed for an optimum service life, the diaphragm remains a wear part. If it breaks, liquid can leak into the center housing and possibly emerge through the muffler. This can be prevented simply and effectively with the ALMATEC diaphragm monitoring. - Page 24 AHD Series · Page 24 Subject to change without notice, 2018/11 ALMATEC Maschinenbau GmbH Hochstraße 150-152 · 47228 Duisburg · Germany Telephone +49 (0) 20 65 / 89 2 05 - 0 · Telefax +49 (0) 20 65 / 89 2 05 - 40...
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