The tank valve is a combination of a spring-loaded ball check valve and a external angle bellow sealed valve. It is pneumatically operated with a fail safe quick-closing valve. Check valve and angle valve are both fitted separately to each other by flanges.
The quick-closing valve is equipped with an intended rupture point. In emergency case the angle valve should break-off without damaging the check valve. The seat of the quick-closing valve is sealed by a tapered disc whilst the check valve is sealed by a ball. The body of the quick-closing valve has a vent hole to verify the efficiency of the bellows.[caption id="attachment_1211" align="alignnone" width="300"] Tanker valve / container valve[/caption]
Accredited to DIN 26028, CEFIC UN 14, GGV Annex XI with ref. for railway tankers, ISO-Container (309.50) and trucks top loading for extremly dangerous media, e.g. chlorine, hydrofluoridric