Natural rubber seal
Smooth convex outside cover without retention. 180° opening
Constant closing pressure by spring assembly
Double bottom, smooth convex inside without retention (DG version)
Fast opening and closing by toggle fastener with possibility of locking
Flat welding lugs
Rotatable inspection door with collar. Steel. Stainless steel
Natural rubber seal
Rotatable base with collar
Smooth convex outside cover without retention. 180° opening
Constant closing pressure by spring assembly
Double bottom, smooth convex inside without retention (DG version)
Fast opening and closing by toggle fastener with possibility of locking
Welding collar
Clamping collar
