Abstract: An intelligent valve system and methods are disclosed for releasing pressure from a main fluid line that defines a primary fluid flow path. In one aspect, the intelligent valve system includes a pressure relief valve system having a pressure relief block connected to the main fluid line, a first pressure relief valve coupled to the pressure relief block, and a second pressure relief valve coupled to the first pressure relief valve, where the pressure relief valves define an alternative fluid flow path that extends approximately perpendicular to the primary fluid flow path. The intelligent valve system may also include a bleed down valve system having a bleed down block, a first bleed down valve coupled to the bleed down block, and a second bleed down valve coupled thereon. The bleed down valves define a flow path that extends approximately perpendicular to the primary fluid flow path.

Abstract: Pumps and plunger assemblies are provided. An exemplary pump can have or contain a cylinder mounted in a pump housing, a plunger assembly including a crosshead, a plunger, a stationary bushing having substantial portions fixedly mounted within a laterally extending bore of the crosshead, and a non-stationary pivotally rotating wrist pin mounted within the bushing. The pump can also include a power end seal assembly including a seal housing extending at least partially through an aperture in the sealed fluid end-facing side of the power end of the pump, a power end seal disposed therein in sealing contact with the power end section of the plunger and a splashguard assembly.