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1. ABOUT DRIVE SYSTEMS LIMITED

Q: Who owns Drive Systems Ltd?
A: Drive Systems Ltd is owned by its working Directors both of whom have vast experience of the variable speed and water industries.

Q: How long has Drive Systems Ltd been in business?
A: Drive Systems was founded in 1986 by its existing Directors, since when it has grown, year on year, to become the well known organisation, used by all the English water companies, that it is today.

2. ABOUT OUR PATENTED DRIVE SYSTEM FOR CIRCULAR BACTERIA BED DISTRIBUTORS

Q: What provides the Drive for the Distributor?
A: A 0.25 kw 3 Phase electric motor, driving through a high reduction gearbox.

Q: Why is a compressor used in the system?
A: The compressor provides air at a suitable pressure to maintain the tension in the drive belt, between the drive motor/gearbox and the drive ring (mounted off the distributor arms). This gives a positive torque transfer.

Q: What if the electrical supply to the Drive System fails?
A: The compressed air supply to the belt tensioner is disconnected. This means that the drive belt can go slack, allowing the distributor to rotate freely, i.e. "Jet Reaction" Drive can take over.

Q: What happens if a distributor arm is jammed or gets blocked?
A: During the commissioning of the Drive, our engineers will set time belt tension by adjusting the air pressure, such that a positive drive is provided under all normal flow conditions but that torque limitation by slipping of the belt occurs in a "jammed situation". This ensures that no mechanical damage occurs to the distributor or the Drive System Equipment. Whenever the blockage is removed, the drive will resume rotation of the distributor.

Q: What is the best speed to turn a distributor?
A: This depends on many factors specific to any BED/Distributor combination. To accommodate as wide a range of applications as possible, we include in our Drive System, as standard, an inverter drive to allow operation (with our standard speed range) between 3 and 15 revolutions of the distributor per hour but practically any speed required can be achieved, if specified at order, by different combinations of gearbox ratio, pulley and ring sizes.

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