Pressure-gastight closures are destined for locking of protective constructions. But it´s possible to use them in the sense of corresponding directives for locking of other buildings for example civil defence objects.
Construction of closures is fullsteel welded. A main part is formed by a valve and a heelpost. A pressure resistance is secured by a construction of a valve proped against a heelpost, gastightness is secured by a rubber seal. A valve is being closed by an onelever latching system. Products are the same for right and also left opening (by turning on 180°).
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