Rubber duckbill valve manufacturers
A type of system used, to avoid the cracks produced by the water hammer in pipes and valves, consists of installing a tank connected to a pipe line. Inside the tank, a rubber bladder is mounted between the pipe water and system that injects gas or air.
RONCAGLIA (R) manufactures bladders in diferent rubber compounds, their inner surface resistant to liquid contact, whereas their outer one is resistant to the gas or air that is injected. The sizes fit the tanks used to connect them to the pipes.
The most important steel manufacture argentine company has employed the RONCAGLIA® SLEEVE for steel sheets coils winder and de-winder mandrels, since more than 30 years in his five plants.
The use of this rubber sleeve, allows:
1-to protect the steel sheet, the defects caused by the metallic mandrel, on the first loops. When a metallic mandrel is opened against the thin metallic sheets, usually a typical mark has been place, on the first loops, these loops have been rejected.
2-to replace metallic supplements for different I.D. coils. When it is necessary to produce coils with different internal diameters, the use of Roncaglia® rubber sleeve, instead of such heavy’s metallic supplements, assures faster and safer installation.
3-to protect mechanical mandrel systems. When you use Roncaglia® rubber sleeve, you have an additional advantage; you are protecting the mandrel mechanisms from dust, which can affect the normal operation.