Screw pumps made by Allweiler are now available with a new opto-electronic module. Known as "Allseal", this new product detects wear of the mechanical seal as soon as it begins and immediately warns the operator of any leaks.
The pump can then be automatically switched off and pumping tasks switched over to a secondary unit. Plant operators recognise pumps as the heart of their systems and value them accordingly. Allweiler has developed a new series of modules designed to preserve value and reduce costs. By doing so, this Germany-based pump manufacturer is fulfilling a current need and following up on its customers' desire for increased safety.
Allseal Technology is available on Allweiler's vertically installed screw pumps and eliminates unpleasant surprises caused by sudden or gradual leaks. The new monitoring and control system protects the pump from damages, extends its service life, and prevents expensive interruptions of the pumping process. Allseal is also an ideal solution for pump operators who must comply with special environmental regulations or other requirements such as SOLAS directives for flammable and explosive liquids.
The opto-electronic system immediately detects if a liquid escapes around the mechanical seal. Unusual leaks trigger acoustic and visual warning signals. These signals may be integrated into a centralised control system or forwarded to a monitoring station. Depending on the specific installation, the leaking pump may be switched off automatically and operation simultaneously switched over to a reserve unit.
Allseal is available on almost all Allweiler screw pumps. Customers can request to have new pumps equipped immediately with Allseal technology. But existing customers can also have their pumps retrofitted with Allseal.
"This new technology makes Allweiler the only pump manufacturer to offer a modular sealing concept. The customer can now choose between conventional
mechanical seals, the new Allseal version with leak detection, and hermetically sealed pumps with magnetic drive," said Dr Michael Matros, Executive Board member at Allweiler.
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