The invention relates to a seal assembly comprising: a seal for a bulk material container, having a ring-shaped connecting flange with a through opening and a first moving element; and a seal member for selectively sealing or opening the through opening. A container wall of the bulk material container can be attached to the connecting flange. The seal assembly also comprises a docking device having a housing, a second moving element, and a seal actuating device. In order to increase the tightness of the seal, one of the moving elements comprises a peripheral first stripping element, by means of which impurities are stripped from a surface of the connecting flange, in a closing process for sealing the though opening of the connecting flange.

A slide valve for a powdered material or a material with a small grain size. The valve comprises a stiff frame, which defines a discharge mouth to discharge the material, and a shutter of the discharge mouth, which is activated by respective moving organs. The valve is characterized in that it comprises a height adjusting device for a sealing element. The height adjusting device is suited to compensate the loss of sealing effect between the lower face of the sealing element and an upper surface of the shutter. The loss of sealing power is due to the wear generated by the relative friction between the lower face and the surface.

A tank for water has a bottom and a surrounding wall with an inside and an outside. In a lower portion, the wall is provided with a hatch casing positioned in a hatch opening extending through the wall for access by personnel from the outside to the inside of the tank. The hatch casing is provided with a hatch with an inside and an outside. The hatch in a closed position closes the hatch opening in a liquid-tight manner. The inside of the hatch is flush with the inside of the wall when the hatch is in the closed position. A method for giving personnel access to the tank through the hatch opening is also described.

In an aircraft water tank, a mouthpiece is attached to an inner liner, and an overflowing adhesive is received in an annular missing portion provided to an expanded portion of the mouthpiece through the gap between a skirt portion and the inner liner. Further, a sealant fills the part of the annular missing portion, which is exposed from an end of a plate portion for the expanded portion.

A manway gate assembly couples to a tank and provides a liquid tight seal. The manway gate assembly includes a gate selectively slideable in a first linear direction between an open position, a closed position, and/or an intermediate position between the open position and the closed position. The manway gate assembly includes one or more locking members arranged adjacent to the gate and moveable between a locked position and an un-locked position. When in the locked position, the one or more locking members apply a biasing force to the gate in a second linear direction perpendicular to the first linear direction to seal the gate to the tank and provide a liquid tight seal.

A storage tank isolation system for a storage tank includes a vertical riser attached to a top of the storage tank and having a cover with an aperture and a connecting member extending from a side of the vertical riser. A distal end of the connecting member is parallel to the top of the storage tank and attached to a storage hatch. The storage tank isolation system includes a valve assembly, which includes a stem extending through the aperture in the cover, a valve plate attached to the stem, and a valve seat sealed to the vertical riser at a position below a connection to the connecting member. The valve plate is moves with the stem from an open position in which the valve plate is held within the vertical riser at a position equal to or above the connection to the connecting member and a closed position.

In an aircraft water tank, a mouthpiece is attached to an inner liner, and an overflowing adhesive is received in an annular missing portion provided to an expanded portion of the mouthpiece through the gap between a skirt portion and the inner liner. Further, a sealant fills the part of the annular missing portion, which is exposed from an end of a plate portion for the expanded portion.

A freight container (1) has a frame to which a bottom (2), a roof (3), and sides (5-7) are attached, one side having a door opening closeable by a folding door (12) made of flexible, fire resistant material. The door (12) is supported from runners (13) moveable along a rail (14) combined with a top member (9) of a frame delimiting the door opening. A gap (15) is formed between the top frame member (9) and the top of the door (12) in its closed condition. The top member (9) is provided with a depending support (16) having a surface facing the inside of the door (12) and having attached thereto a strip of heat intumescent material (20). A flow passage (18) is formed between the strip (20) and the door (12) for gasses attempting to escape from the container through the gap (15) in a fire inside the container. The heat intumescent material (20) is arranged to swell and close the flow passage (18) when subjected to hot gasses from the fire inside the container.

The disclosed spool valve is used especially in conveying systems comprising conveying pipes (6, 7) and includes a spool (1) which allows the conveying cross-section of the conveying pipe (6, 7) to be closed. The spool (1) has at least one through-hole (33). The conveying pipe (6, 7) is sealed from the spool (1) by at least one sealing ring (27, 28). Said sealing ring (27, 28) surrounds the conveying line (6, 7) and includes a washer-shaped sealing portion. Said sealing portion lies flat on the spool and seals under the effect of the difference between the pressure in the conveying line (6, 7) and the ambient pressure.

A manway gate assembly couples to a tank and provides a liquid tight seal. The manway gate assembly includes a gate selectively slideable in a first linear direction between an open position, a closed position, and/or an intermediate position between the open position and the closed position. The manway gate assembly includes one or more locking members arranged adjacent to the gate and moveable between a locked position and an un-locked position. When in the locked position, the one or more locking members apply a biasing force to the gate in a second linear direction perpendicular to the first linear direction to seal the gate to the tank and provide a liquid tight seal.