A floor tile manufacturing company use DN100 AKO Pinch Valves (VF100.03X.31.30LA) for handling the PVC powder they use to produce laminate sheets. Five of these sheets are then stuck together, and left to dry for 3 days to stabilise before being shipped out. The sheets are stored in rolls and are sent off to be cut into squares to make floor tiles.
Product: PVC Powder, sometimes Talc Powder
Pressure: Less than 1 BAR
Pinch Valve is normally open.
Amount of Cycles per day: 1 closure every 90 minutes, 24 hours a day. (Operated 16 times per day).
How much air is available to close the Pinch Valve: 4 BAR, but advised to drop to 3 BAR.
(Only 2-2.5 BAR pressure above the line pressure is required to close the valve fully. Using more pressure than needed can shorten the lifetime of the sleeve).
This floor tile manufacturing company have been using AKO Pinch Valves for 15 years. The Pinch Valves were already installed on the machinery when it was purchased. They say that they are very satisfied with the Pinch Valves for PVC powder, that they are easy to operate, and that these valves are the best solution for isolating powdered products because of their rubber sleeve quality and long service life.
The company also use slide valves on site, which are required for safety at the bottom of the hopper/vessel in case the product leaks and causes a spillage.