PECM Issue 64 2023 | Page 48

The New Innovative Solution to Compensate Pressure and Volume Fluctuations

VALVES & FLOW CONTROL GEMÜ 652 PULSATION DAMPER

GEMÜ
The New Innovative Solution to Compensate Pressure and Volume Fluctuations
Pressure surges are recurrent problems in many production plants that occur as a result of turning on pumps , changes in temperatures of enclosed liquids or switching the valves too quickly . Among other things , opening the valves can also result in pressure surges if the media supply is at a high level and the fluid column to lower plant components suddenly starts increasing . The possibility that pressure surges may damage plant components , such as filters , sensors , pumps and piping is very high .
Furthermore , the pressure surges can also cause the shut-off valves to accidentally open for a brief moment , and the media may then get contaminated as a result of this . In the worst situation , this could lead to product loss or downtime due to necessary repair work that must be carried out .
GEMÜ has developed a new innovative solution , the GEMÜ 652 Pulsation Damper , to compensate pressure and volume fluctuations such as water hammer or vapour pressure surge . Based on the tried and tested diaphragm valve technology and reliable actuator design , the GEMÜ 652 is therefore ideal for use in sterile applications ( maximum 150 ° C ). This means that it is completely drainable and CIP / SIP capable , taking the specified draining angle into account . Furthermore , it is also suitable for use with corrosive liquid and gaseous applications .
The main function of the GEMÜ 652 pulsation damper is to dampen as much volume as possible within a specific operating range . The body is designed without a sealing weir ( full bore design ), and for this reason , it won ’ t shut off the media and therefore the actual expansion volume is compensated by the moving diaphragm .
The operating range and the volume compensated can be adjusted by using different actuator sizes and spring sets . Therefore , the increased expansion volume can be achieved by installing multiple pulsation dampers in series , which will compensate for larger volumes .
The main function of the GEMÜ 652 pulsation damper is to dampen as much volume as possible within a specific operating range .
The GEMÜ 652 is self-acting as its function is accomplished solely using a spring force , therefore it does not require an electric or pneumatic supply . The control air connector is only used for the assembly and maintenance of the diaphragm .
The GEMÜ 652 pulsation damper is available in the nominal sizes DN15 to DN80 ( diaphragm size 25 to 80 ). To ensure flexibility and a high range of applications , the valve bodies and diaphragms are available in various materials . Furthermore , it also complies with the current standards in the foodstuffs and pharmaceutical industry , such as BSE / TSE , FDA , USP Class VI and Regulation ( EC ) no . 1935 / 2004 . This ingenious solution by GEMÜ will solve multiple problems in many varied
GEMÜ 652 Pulsation Damper
applications . Please contact us to speak to one of our local product specialists for further information about this product .
See below for more technical information on the GEMÜ 652 : >> Product Flyer >> Data-sheet >> Operating Instructions
Tel : 01925 824044 | Email : enquiries @ gemu . co . uk | Web : www . gemu . co . uk
48 PECM Issue 64