Abstract: A valve for a liner bag includes a valve seat having an opening extending therethrough to be aligned with an opening in the liner bag, and a flange extends outwardly from the valve seat and is to be placed inside the liner bag so that the valve seat projects outside the liner bag. A valve member is within the opening of the valve seat for controlling egress of liquids or flowable solids from the liner bag. An operating lever is outside the liner bag for operating the valve member. A fixed protective cage is coupled to the flange for protecting the opening of the valve seat from inside the liner bag when the liner bag collapses.

Abstract: A method for wringing fluids from a flexible container positioned within a rigid structure is based on the use of a wringing device. The wringing device includes a sup ort frame having a pair of spaced apart side supports, at least one rotatable take-up shaft extending between the pair of spaced apart side supports, and a carriage coupled to the support frame. The carriage includes a pair of spaced apart side members, a nip shaft extending between the pair of spaced apart side members, and a movable nip shaft adjacent the nip shaft and also extending between the air of spaced apart side members. The method includes passing the flexible container between the nip shaft and the movable nip shaft, and securing the flexible container to the at least one take-up shaft. The at least one take-up shaft is rotated for wrapping the flexible container therearound after having passed between the nip shaft and the moveable nip shaft so that the fluids are wringed out of the flexible container.

Abstract: A wringing device for expelling materials from a flexible container. In at least one embodiment, the wringing device may be used to expel fluids from a flexible container contained within an intermediate bulk container (IBC). The wringing device may be formed from a support frame and a carriage movably coupled to the support frame for supporting components of the wringing device, The wringing device may include a nip shaft coupled to the carriage and a movable nip shaft movably coupled to the carriage proximate to the nip shaft. The movable nip shaft may be biased toward the nip shaft with a biasing device. The wringing device may include one or more drive devices for driving a take-up shaft, a wringing device transport system, or the carriage, or any combination thereof. The wringing device may also include a transport vehicle for transporting the wringing device between different intermediate bulk containers.