Patent ID: 9726313
Date: 2017-08-08
CPC Classifications: F16L,G01M

Claim:
1. A gasket for an annular compact flange, the compact flange including two joinable flange halves which are formed with contact surfaces facing each other, and at least one of the flange halves having an axial, centric bore, and there being an annular gasket groove arranged in each of the flange halves, which is arranged to sealingly receive a common gasket, the gasket groove having a proximal side and a distal side relative to the bore, the distal side, which is conical, forming a groove sealing surface against the gasket, wherein the gasket forms a groove seal sealing at the groove sealing surfaces; the gasket is formed with a plate portion positioned between the contact surfaces; a part of the plate portion positioned between the bore and the gasket groove forms an inner seal together with the contact surfaces, the inner seal being at a distance from the groove seal; and a channel, which leads into the gasket groove at the inner seal, extends to the outside of the plate portion, the channel being provided with a threaded portion arranged for connecting to a leakage testing apparatus and for plugging the channel.