When a vehicle is filled with petrol, the petrol flowing into the tank displaces an equal volume of petrol vapour out of the tank. To prevent this petrol vapour escaping into the atmosphere, it must be siphoned off. In the solution offered by Bürkert this vapour extraction is achieved by applying a vacuum via an upstream proportional valve in the petrol pump reservoir tank. A suction pump transports the petrol vapour out of the vehicle tank and compresses it in the petrol pump feed tank. To prevent an overpressure in the feeder tank, the volume of petrol drawn and the sucked back petrol vapour must be balanced. The petrol quantity dispensed into the vehicle tank is measured using the calibrated piston meter of the petrol pump, the output signal of which is converted by a petrol pump computer into pulsed signals that are transmitted to the control unit. The control unit is fitted with a (SUB-D) port so that it can communicate (calibration, measurements) with the manual control unit.
Items held in stock are available for next day delivery if ordered by 2pm. Items not in stock will state expected delivery time for each individual part number.
Any products not availale for online purchase are generally on a 2-3 week delivery, please call our sales office on +44 (0) 151 343 9966 for price and delivery.
If you wish to return a product for repair, exchange or upgrade please call our sales office on +44 (0) 151 343 9966 to obtain a Returns Note Authorisation (RN) form and a member of staff will instruct you further.
Any products returned without an RN will not be processed.
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Our team of engineers are fully equipped to provide bespoke system design and manufacture.
This process involves specifying, procuring, calibrating and maintaining instrumentation and control systems for industrial and commercial process control applications.
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