AxFlow has introduced Wilden’s full
stroke PTFE diaphragms for the
Advanced and Original Series airoperated
double diaphragm pumps.

The diaphragms are available for
pumps in 25 to 76mm size range.

The increased stroke length of the
new PTFE diaphragm is said to
provide flow, suction lift and
efficiency comparable to rubber and
TPE diaphragms. Units also use the
same shaft and hardware as Wilden
rubber and TPE diaphragms,
optimising performance and
increasing part commonality.

The full stroke design of the new
PTFE diaphragms is said to deliver
enhanced performance for more
challenging applications and to cope
with temperatures to 104°C. The
company says this is due to the
increased product displacement per
stroke, which translates into greater
flow rates and higher efficiencies
than those attained by AODD
pumps using reduced stroke PTFE
diaphragms.