Briefly, the present invention relates, in one embodiment, to a gasket for sealing a filter housing to a filter mount. The gasket may have an upper body and a lower body which seals between the filter housing and filter head. The gasket may include chamfered surfaces to allow for properly sealing against manufacturing tolerances, and may include an annular groove which receives the filter housing and stabilizes the gasket during installation.

Briefly, the present invention relates, in one embodiment, to a gasket for sealing a filter housing to a filter mount. The gasket may have an upper body and a lower body which seals between the filter housing and filter head. The gasket may include chamfered surfaces to allow for properly sealing against manufacturing tolerances, and may include an annular groove which receives the filter housing and stabilizes the gasket during installation.

A pipeline including at least first and second portions, each comprising outer and inner pipes, at least one coupling system connecting the first and second portions and including at least a downstream flange ring connected to at least one of the outer and inner pipes of the first portion, at least an upstream flange ring connected to at least one of the outer and inner pipes of the second portion, connecting elements connecting the upstream and downstream flange rings, first and second annular seals interposed between the upstream and downstream flange rings and configured to delimit, with the upstream and downstream flange rings, a buffer space containing an atmosphere, the pipeline comprising at least one leak detection system configured to determine at least one characteristic of the atmosphere of the buffer space.

Example aspects of a tight-seal piping component, a tight-seal piping assembly, and a method for preventing leaking in a piping assembly are disclosed. The tight-seal piping component can comprise a fitting body defining a fitting inner surface, a fitting outer surface opposite the fitting inner surface, a first fitting end, and a second fitting end opposite the first fitting end, the fitting inner surface defining: an interior channel defining a fitting axis; a seal stop surface within the interior channel; and internal threading between first fitting end and the seal stop surface, the internal threading defining straight threading extending in a direction about perpendicular to the fitting axis; and a seal received within interior channel and abutting seal stop surface.

A seal assembly can include a sealing component and a spring energizer located within a seal cavity or spring cavity of the sealing component. The sealing component provides an exterior surface for providing protection of the seal cavity and spring energizer from an external or contaminated environment, such as the atmosphere. The sealing component can have two distinct first and second sealing points. Each distinct first sealing point can have two discrete first sealing points and each second sealing point can have two discrete second sealing points. Part of the spring energizer can extend externally of the sealing component.

A connector element comprising a body, a locking mechanism and a seal. The seal comprises a base arranged facing, backward to a proximal surface and facing, forward to a distal surface of the body, as well as a lip. The lip extends parallel to a longitudinal axis of the body and forward, protruding from the base and defining a free front edge. The seal presents a peripheral notch that is arranged, radially to the longitudinal axis, between the base and the lip, which opens to the front of the seal and a bottom of which is delimited on the rear by a joining portion of the seal connecting the base and the lip. The seal is configured to press backward against the proximal surface, in alignment with the free front edge of the lip, according to a direction parallel to the longitudinal axis.

A seal assembly can include a sealing component and a spring energizer located within a seal cavity or spring cavity of the sealing component. The sealing component provides an exterior surface for providing protection of the seal cavity and spring energizer from an external or contaminated environment, such as the atmosphere. The sealing component can have two distinct first and second sealing points. Each distinct first sealing point can have two discrete first sealing points and each second sealing point can have two discrete second sealing points. Part of the spring energizer can extend externally of the sealing component.

The present disclosure relates to a seal for a coupling member of a type used in a fluid coupling including mating first and second coupling members. Each coupling member includes a seal cavity with a generally square shaped cross-section including an upper face, a circumferential face and a lower face. The seal includes an upper portion and a lower portion. The lower portion of the seal includes a first part and a second part. The first part of the lower portion of the seal includes an external ledge that extends away from the upper portion of the seal and which is configured during use of the coupling member to contact against the upper face of the seal cavity.

The present disclosure relates to a seal for a coupling member of a type used in a fluid coupling including mating first and second coupling members. Each coupling member includes a seal cavity with a generally square shaped cross-section including an upper face, a circumferential face and a lower face. The seal includes an upper portion and a lower portion. The lower portion of the seal includes a first part and a second part. The first part of the lower portion of the seal includes an external ledge that extends away from the upper portion of the seal and which is configured during use of the coupling member to contact against the upper face of the seal cavity.

A fluid end assembly comprising a plurality of fluid end sections positioned in a side-by-side relationship. Each section comprises a housing containing a reciprocating plunger. One and only one packing seal is installed within the housing and surrounds and engages an outer surface of the plunger. A retainer compresses and holds the packing seal within the housing. The retainer is secured to the housing using a clamp, such that no threads are formed in the housing of the fluid end section and no threads are formed in the retainer.