Gardner Denver has updated its ‘Assure’ scheme for its Elmo Rietschle vacuum range, offering a free, six-year warranty to customers. To previously qualify for the six-year warranty, customers had to register the machine with their local authorised Elmo Rietschle distributor upon purchasing the pump. Now, the six-year warranty is offered as standard in the UK on all new and existing rotary vane vacuum pumps, with registration automatically completed when the product is purchased.