Abstract: A liner bolt (10) comprising an elongate stud (12) and a head (14) engageable with a first end (16) of the stud (12). The head (14) including an inwardly tapered first end portion (24) adjacent a first end (21) thereof. A threaded portion (18) is provided adjacent a second end (17) of the stud for receiving a nut (20). The first end (21) of the head (14) includes an inwardly tapered opening (28) having an internal thread (30) and the first end (16) of the stud (12) includes an inwardly tapered end portion (32) having an external thread (34) such that the first end (16) of the stud (12) is engageable in the opening (28) in the head (14).

Abstract: A liner bolt (10) comprising an elongate stud (12) and a head (14) engageable with a first end (16) of the stud (12). The head (14) including an inwardly tapered first end portion (24) adjacent a first end (21) thereof. A threaded portion (18) is provided adjacent a second end (17) of the stud for receiving a nut (20). The first end (21) of the head (14) includes an inwardly tapered opening (28) having an internal thread (30) and the first end (16) of the stud (12) includes an inwardly tapered end portion (32) having an external thread (34) such that the first end (16) of the stud (12) is engageable in the opening (28) in the head (14).

Abstract: A flange seal (10) for forming a sealed connection between a first flange (12) and a second flange (14) connected by a plurality of flange bolts (22). The flange seal (10) comprises a first portion (26) and a second portion (28). The first and second portions (26, 28) are locatable between the first and second flanges (12,14) such that a chamber (44) is defined between the first and second portions (26,28). The supply of hydraulic fluid to the chamber (44) via a hydraulic input (48) causes the first and second portions (26,28) to move away from each other such that the first and second flanges (12,14) engage against ends of the flange bolts (22) and outer surfaces (32,33) of the first and second portions (26,28) engage against end surfaces (32,33) of the respective flanges (12,14) to create a seal between the flanges (12,14).