Abrasive PVC Plastisol
A leading multi-national Filter
Manufacturer based in South Wales, manufactures an extensive range of filter
assemblies for the automotive industry.
Filters are manufactured by dispensing a
single part PVC Plastisol into a rotating end cap mould and immersing the end
of the filter medium and support cages into the liquid PVC. This is then
transported via conveyor through a tunnel oven where the PVC cures to a
flexible rubber like consistency. The mould is unpacked and the process
repeated with the other end of the filter - the result is a filter medium with
a annular rubber ring moulded on each end.
Fairly straight forward you might say, but
no. PVC Plastisol is extremely abrasive and as this leading filter manufacturer
found, none of the dispense valves they had been using could stand up to more
than 2 weeks before springing a leak from their seals requiring immediate
maintenance. The operators on the line, being paid piece work were obviously
put out as the line would be shut down while the offending valve was replaced,
to be repaired later.
Dispensing Systems came along (1994), the maintenance engineers
accepted that the short service life on the valves installed was the norm and
just put up with it.
We told them that we had a solution for
Resistant Snuf-Bak Dispense Valve. They were sceptical at first
to say the least, but were prepared to listen when we offered them a free trial
valve to go on their line.
Installation was effortless and so we left
them to get on with it. Weeks went by, and then it was 3 months when they
called us. The valve was still working fine and they wanted to buy it off us,
plus a load more on top. They were so pleased with the performance that they
decided to replace all their old valves (incidentally manufactured by who we
consider to be our most competent competitor), with the
months, the first valve supplied, started to show minimal signs of
leakage and it was decided that it was well due for an overhaul, a simple 5
minute operation with our standard service kit. Needless to say, they are still
using our valves to date and are very happy with them.
Our valves do cost more than any of the
competition, but there is a reason for this - they are designed to withstand
tough production environments and are built to last. No wonder Sealant
Equipment & Engineering Inc. are unique in offering a
2 year limited warranty on all their products - they
are confident no-body is going to need to use it. Their confidence has kept
them in business for over 30 years now.
If you are a filter manufacturer and want
to save money on maintenance and lost production - give us a call.