Closure for an access opening in large-volume containers, such as storage tanks or the like, for pumpable foods, the closure being designed to fully maintain biological conditions

摘要

In a closure for an access opening (10) in storage tanks for pumpable foods, the closure being designed to fully maintain biological conditions, improved devices for secure sealing of the opening in conjunction with a lever and pivoting mechanism arranged between the lid element (1) and tank casing (11) are to be found, which consist, in particular, of a novel profile of a supporting seal (5), an effective centring member (3) which enhances the sealing effect, and a clamping device which can be operated easily by hand, which devices allow the access opening (10) to be opened and closed without difficulty. <IMAGE>