An apparatus for locking a sealing member of a valve in a piping system or an enclosed system comprises: (a) a locking mechanism housing having a upper end, a lower end opposed to the upper end, and a body between the upper end and the lower end; (b) at least a locking mechanism opening formed on the body; (c) at least a locking mechanism disposed in the locking mechanism opening; wherein the valve further comprises a valve housing and a sealing member; wherein the locking mechanism housing, the at least a locking mechanism opening, at least a locking mechanism, and the sealing member is disposed inside the valve housing; wherein a first pressure exists in the upper end of the locking mechanism housing; and wherein a second pressure exists in the lower end of the locking mechanism housing.

A pipeline isolation tool [10] and method of its use includes a plugging head [20] having a seal [30] to sealably engage a pipe wall; a fluid-activated cylinder [64] located on one side of the seal and moveable in an axial direction; metal support segments [40] located on another side of the seal and moveable in a transverse direction radially outward and inward; the metal segments including a concave portion [45], a portion [35] of the seal residing within the concave portion when unset and set. When in a seal unset position a portion [33] of the seal is covered by adjacent metal support segments of the plurality. When in a seal set position the portion of the seal is exposed between the adjacent metal support segments. The seal is self-energizing, its actuating force being in a same direction as a force from isolation pressure.

The present disclosure relates to an insert and system of installing the same. The insert includes a tapered core and a cylinder. The core releasably secures to an installation device which includes a depth stop or a depth control to control the installation depth of the insert. The insert may be provided in a tray that allows for easier handling of the inserts and installation thereof in installation holes, for example in a hydraulic manifold. In some cases, the core includes a threaded hole to releasably secure the insert to the installation device, thus allowing the installation device to pull the core into the cylinder. The core and cylinder may be made of metallic materials such as steels, steel alloys and others. In some cases the insert can withstand blow out pressures of 40,000 psi or higher.

The present disclosure relates to an insert and system of installing the same. The insert includes a tapered core and a cylinder. The core releasably secures to an installation device which includes a depth stop or a depth control to control the installation depth of the insert. The insert may be provided in a tray that allows for easier handling of the inserts and installation thereof in installation holes, for example in a hydraulic manifold. In some cases, the core includes a threaded hole to releasably secure the insert to the installation device, thus allowing the installation device to pull the core into the cylinder. The core and cylinder may be made of metallic materials such as steels, steel alloys and others. In some cases the insert can withstand blow out pressures of 40,000 psi or higher.

A single piece expansion plug and method of using the same in connection with a tool is provided. The plug has an inner recess extending partially into a top of the plug, the inner recess defining a tapered inner wall. The plug is installed with a tool having a tapered end at a greater angle with respect to the taper inner wall. The tool presses against the tapered inner wall to expand the plug against a hole. The tool includes a pin that retracts against a spring to seat the plug in the hole to be sealed such that the pin contacts the plug prior to the tapered inner wall and tapered end coming into contact.

An apparatus for locking a sealing member of a valve in a piping system or an enclosed system comprises: (a) a locking mechanism housing having a upper end, a lower end opposed to the upper end, and a body between the upper end and the lower end; (b) at least a locking mechanism opening formed on the body; (c) at least a locking mechanism disposed in the locking mechanism opening; wherein the valve further comprises a valve housing and a sealing member; wherein the locking mechanism housing, the at least a locking mechanism opening, at least a locking mechanism, and the sealing member is disposed inside the valve housing; wherein a first pressure exists in the upper end of the locking mechanism housing; and wherein a second pressure exists in the lower end of the locking mechanism housing.

A sealing device for sealing a space filled with a fluid in a MEMS sensor system. The sealing device includes a sealing unit, the sealing unit encompassing a channel, which is connected to the one space, and a sealing element for sealing the channel being situated in the channel in such a way that the channel and/or the sealing element are/is designed in such a way that the sealing element is sealingly fixed in the channel via a mechanical clamping.

A sealing device for sealing a space filled with a fluid in a MEMS sensor system. The sealing device includes a sealing unit, the sealing unit encompassing a channel, which is connected to the one space, and a sealing element for sealing the channel being situated in the channel in such a way that the channel and/or the sealing element are/is designed in such a way that the sealing element is sealingly fixed in the channel via a mechanical clamping.

An insert for connecting first and second parts each having holes, the insert having a cylindrical sleeve and a core. The cylindrical sleeve having a central void and an outer diameter sized to fit into the hole in the first part. The central void having a uniform diameter across a length of the cylindrical sleeve. The core having a through-hole and a tapered outer wall such that when the core is pulled into the cylindrical sleeve, the cylindrical sleeve expands against the hole of the first part to secure the insert to the first part. The through-hole of the core having a threaded portion at a first end of the core to engage with a threaded fastener to secure the second part to the first part. The first end of the core is press-fit into the cylindrical sleeve.

An insert for connecting first and second parts each having holes, the insert having a cylindrical sleeve and a core. The cylindrical sleeve having a central void and an outer diameter sized to fit into the hole in the first part. The central void having a uniform diameter across a length of the cylindrical sleeve. The core having a through-hole and a tapered outer wall such that when the core is pulled into the cylindrical sleeve, the cylindrical sleeve expands against the hole of the first part to secure the insert to the first part. The through-hole of the core having a threaded portion at a first end of the core to engage with a threaded fastener to secure the second part to the first part. The first end of the core is press-fit into the cylindrical sleeve.