Abstract: A liquid filter and a liquid filtration apparatus are provided using the liquid filter, which enable uniform filtration over the entire range, without localizing a part where filtration occurs to the upper side above the middle. The liquid filter has a plurality of spacers fixed to a filter body. The filter body has a liquid inflow space, a plurality of diagonal fold parts individually formed outwards from corner parts of the liquid inflow space and having a length in the radial direction around the center of the liquid inflow space, and pocket parts having any one of the diagonal fold parts as one side, and individually having a triangular planar shape, and the spacers are fixed on the inner face of the filter paper, near the diagonal fold parts, and inside of the individual pocket parts.

Abstract: [Subject] To provide a novel bellows with protective plate members, which allows replacement of only damaged slat(s), rather than total replacement of the bellows, when damaged or deformed only in a part of a large number of fixed slats (protective plate members). [Solving Means] The bellows includes a bellows body 2 having ridge parts 2a and valley parts 2b alternately formed therein, and having a bellows supporting plate 5 fixed inside thereof; a fixing plate 3 fixed to the bellows body 2; protective plate members 4 each having a fitting plate part 41 detachably attached to the fixing plate 3, and a protective plate 44; wherein the fixing plate 3 having formed therein one engagement parts 33, 34, the fitting plate part 41 having formed thereon other engagement part 45, 46, thereby making it possible to attach or detach the protective plate member 4 to and from the fixing plate 3.

Abstract: [Subject] To provide a novel bellows with protective plate members, which allows replacement of only damaged slat(s), rather than total replacement of the bellows, when damaged or deformed only in a part of a large number of fixed slats (protective plate members). [Solving Means] The bellows includes a bellows body 2 having ridge parts 2a and valley parts 2b alternately formed therein, and having a bellows supporting plate 5 fixed inside thereof; a fixing plate 3 fixed to the bellows body 2; protective plate members 4 each having a fitting plate part 41 detachably attached to the fixing plate 3, and a protective plate 44; wherein the fixing plate 3 having formed therein one engagement parts 33, 34, the fitting plate part 41 having formed thereon other engagement part 45, 46, thereby making it possible to attach or detach the protective plate member 4 to and from the fixing plate 3.