Abstract: A valve for a positive displacement pump, a valve seat, a valve body for use therewith, and a pump comprising such a valve are described. The valve comprises a valve body and a valve seat each having engagement surfaces which are configured, in use, to at least partially engage with one another when the valve is in a closed position to thereby mitigate fluid flow therethrough. The valve body is movable, in use, relative to the valve seat along a linear path of motion from the closed position to an open position, wherein at least a peripheral portion of the engagement surface of the valve body extends at an obtuse angle relative to the linear path of motion in the direction of motion from the closed position to the open position and wherein the length of the peripheral portion is at least 13% of the length of the engagement surface.

Abstract: Parts in a manufacturing or service facility are electronically tracked using wireless beacons and location tags, strategically positioned receiver devices in the facility, and a monitoring server. The wireless beacons and location tags are individually coupled to parts in the facility to be tracked and store beacon-, tag-, and part-specific identifiers that can be wirelessly communicated to the monitoring server through receiver devices or mobile devices of workers in the facility. In particular, the location tags transmit various identifiers when the mobile devices or wireless beacons are brought into close proximity to the location tags. The mobile devices allow workers to request on-demand and up-to-date work orders for the parts with location tags, and the wireless beacons communicate the location tags' identifiers to the monitoring server. The monitoring server uses the identifiers to track the locations of the parts and manage electronic work orders for the parts.

Abstract: A method of generating compressive residual stresses through a thickness of a metal component comprising the steps: receiving a metal base component (10), which in use is subjected to applied pressure and applying by thermal deposition cladding (16) to one or more surfaces (14) of the base component. The cladding (16) comprises one or more layers of metal or metal alloy. The method also includes, subsequent to the cladding step, applying autofrettage to the clad component thereby generating compressive residual stresses through the one or more layers of metal or metal alloy (16) and at least part way through the base component.