Catalogue 2013 - Bürkle GmbH

ination with an adapter. On the other hand, universal solutionssuch as conical drum stoppers can be used.MaterialsThe most suitable pumps are robust industrial pumps made fromtop-quality materials such as polypropylene (PP) for acids and alkalis,or 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 check against the chemical resistance list will help.Caution with filling aidsPlastic siphons are a cost-effective alternative to mechanical pumps.Siphons are easy-to-use devices for safely filling off liquids from ahigher container into a lower one. However, using them for aggressiveor flammable liquids cannot be recommended. The pump bellowscould be affected by acids and become brittle.that the pumps fit all the usual commercially available containers.Low-mounted suction valves ensure that almost all the residual liquidis removed.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. On the one hand, the pump can be screwed onto theexisting container thread using a barrel screw joint, possibly in com-5