Pumps - Bürkle GmbH

Filling aidsPlastic siphons are a low-priced alternative to mechanical pumps.Siphons are easy-to-use devices for safely filling off liquids from ahigher container into a lower one. However, their use with aggressiveor flammable liquids cannot be recommended. The pump bellowscould be attacked by acids and become brittle.Acids and alkalisAcids, alkalis and detergents can be safely handled by plastic pumpsmade from PP or PVDF. Bürkle offers many plastic pumps with bothrigid discharge pipes and also with discharge tubing and shut-offvalve for filling distant or higher standing containers.When handlingcorrosive or aggressive liquids the user should take appropriate precautions.Protective clothing such as gloves, goggles, aprons andface masks is essential.Container connectionsIn contrast to metal drums, which usually have an R2“ fine thread,there are no standard connection threads for plastic drums. Thereare basically two different ways of attaching the pump to the drumor container.1. The pump can be screwed onto the existing containerthread using a barrel screw joint, possibly in combination with anadapter.2. Universal solutions such as conical drum stoppers can beused.Flammable liquidsFilling off flammable liquids requires special precautionary measures.It is essential that filling devices for flammable liquids aremade of conductive materials. It is essential that any electrostaticcharges formed are eliminated completely and without spark formation.Stainlesssteel barrel pumps meet these requirements when theelectrostatic charges are eliminated by using the Antistatic Set.MaterialsThe most suitable pumps are robust industrial pumps made fromtop-quality materials such as polypropylene (PP) for acids and alkalisor stainless steel V2A (1.4301) for flammable liquids. We alwaysrecommend the use of PTFE seals.Always check that the material isresistant to the medium to be pumped. In many cases a checkagainst the chemical resistance list will help.5