The TD series are automatic priming, diaphragm pumps powered by OHV Honda petrol engines (with oil alert). A Hatz diesel engine (with electric start) is fitted to the TD300HZDE model, which is also trolley mounted. They are fitted with diaphragms (in nitrile rubber), so priming is unnecessary and indefinite dry running is permissible. They can handle site water containing sand, silt and solids up to 30mm. The inlet and outlet ports, pump casings and surge reduction chambers are all constructed from aluminium. The rubber diaphragm and check valves are replaceable for easy on site repair, while the gear unit is maintenance free and is grease filled during factory assembly. The petrol powered versions are housed within protective tubular steel, easy carry frames with anti-vibration rubber mounts. A site trolley is available as an optional extra. All models are supplied with a suction strainer, hose couplings, washers and clips, but hoses are extra. Maximum suction lift is 8 metres, however 6 metres, or less, is recommended. This popular series of pumps is widely used by utilities and regularly found on hire fleets.