Abstract: A bolted flange joint sealing and monitoring apparatus with the bolting flange joint having two flanges abutting one another at an interface and the abutting flanges providing an inner surface and an outer surface. A layer of sealant applied to the interface and an area of the abutting flanges. An inner and outer surface of sheet material providing an air space. A sealant forming an air tight space. A vacuum source in communication with the air tight space and a vacuum monitor monitoring the status of a vacuum in the air tight space.

Abstract: A lining system for lining a surface generates a fluid impervious lining and an interstitial space between said lining and said surface. The system includes a layer comprising a flexible material having an adhesive coating on each side thereof, a second layer of flexible material, and a spacing means to generate a gap between the first and second layers, the gap constituting the interstitial space, and a coating, the coating comprising a curable material which cures to form a hard fluid impervious coating.

Abstract: A magnetic attachment device comprises a pad, the pad including a base, a backing plate mounting a plurality of magnets, and a top plate. The base is connected to the backing plate and the top plate is connected to the backing plate, the top plate being connected to the backing plate by fasteners, and the pad further comprises flexible sealant situated in a void formed between surfaces of the base and/or the magnets and/or the backing plate.

Abstract: Apparatus for use in lining a curved wall comprising staging (5), which staging includes a deck (6) and anchor plates (7, 7a) attached at opposing. ends of the deck (6), wherein the anchor plates (7, 7a) are attached to the deck (6) by respective pivots such that, in use, the anchor plates (7, 7a) engage with the surface of the wall (4) and wherein a line extending between the ends of the anchor plate (7, 7a) forms a chord to the curve of the wall.

Abstract: A lining system for lining a surface generates a fluid impervious lining and an interstitial space between said lining and said surface. The system includes a layer comprising a flexible material having an adhesive coating on each side thereof, a second layer of flexible material, and a spacing means to generate a gap between the first and second layers, the gap constituting the interstitial space, and a coating, the coating comprising a curable material which cures to form a hard fluid impervious coating.