WHAT MAKES THE PTFE COATED PUMPS DIFFERENT?
The PTFE Coated Pumps for Metal Series are constructed from cast Aluminium, however, all wetted parts are coated with non-stick PTFE and the inlet and outlet ports are made from Stainless Steel AISI 316L.
PTFE Pumps were developed for the printing industry where a low price alternative to the PE/PTFE pumps was required and when aluminium was not chemically resistant. It can be used for all sorts of applications where slightly acidic or alkaline liquids need to be transferred.
However, in applications where highly aggressive chemicals are to be pumped, we still recommend our full solid block PE & PTFE Air Operated Diaphragm Pumps.