SPV 12-18 They are suitable for transferring liquids containing impurities up to 3 mm in size. Their hydraulic components: impeller, feed screw and pump body in PBT allow them to be used with water, emulsions and oily substances in general, with a viscosity not exceeding 21c St (3° Engel). The temperature of the liquid must not exceed 70°C. They are commonly used on: - machine tools (milling and turning machines-drills) - glass processing machinery (TRI version) - printing machines They are normally installed on a tank with a capacity which is proportional to their flow rate, about 3-4 cm from the bottom. It is important to make sure that the maximum liquid level in the tank is always 3-4 cm lower than the support flange. Should the liquid be particularly dirty, it is advisable to build a compartment tank in order to allow the sludge to deposit before it is sucked by the pump.