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Double diaphragm shock absorber
DKM provides many accessories around the pump : pulsation dampeners, double diaphragm shock absorber, check valves, diaphragm leakage detector, remote control actuators and frequency inverters.
Alternative displacement pumps can generate pulses and classical means exist to reduce this phenomenon to a reasonable level. The most well-known is the bottle system with built-in pre inflated bladder.
Although undoubtedly efficient of such equipment, the resistance of this double diaphragm shock absorber to mechanical and chemical aggression is relatively low.
Faced with the range of products that DKM has been asked to pump, we have developed an exclusive device, which protects a standard shock absorber from corrosion and abrasion. The technical advantages are as follows :
The pulses are transmitted hydraulically to the shock absorber.
The diaphragm rupture detection systems (sandwich or by resistivity variation) are still applicable.
The materials in contact with the fluid transported are identical to those used on the pump :
PTFE-coated nitrile diaphragms, or metal diaphragms, shock absorber chamber made from stainless steel, hastelloy, uranus, titanium or plastic (PVC - PP - PVDF), etc.
Mounting from the pump delivery can be horizontal or vertical.
The shock absorption chamber can be cooled or heated without problem. (To allow normal running at high temperatures, a finned cooler is fitted in between the bladder bottle and the separator).