Abstract: An optimized gate valve having a box-shaped valve body is provided. The valve body (20) includes spaced apart side plates (22, 23) and spaced apart end plates. The valve body includes an internal fluid passage and an internal gate chamber extending transverse to the internal fluid passage. A slab gate is provided in the internal gate chamber and is operable to move within the internal gate chamber between an open position allowing fluid flow through the fluid passage and a closed position obstructing fluid flow through the internal fluid passage. The design optimization requires less welding, reduces the thickness of the valve body walls, uses reinforcement ribs (50) having an optimal position and shape, and uses fins (48) to help the pipe connection contain the internal pressure of the valve.

Abstract: A system may be configured to monitor surge relief. Some embodiments may: provide a surge relief valve; provide a set of instruments coupled to the surge relief valve and configured to output first and second data based on a prediction, each of the first and second data having a quality level satisfying a first criterion; provide a computer; and provide a non-transitory medium comprising instructions executable by the computer to report information based on the prediction that an operating characteristic of the surge relief valve is at an extent satisfying a second criterion.

Abstract: A pilot-operated relief valve assembly can include a relief valve, and a pressure detection assembly. A valve lift factor or indicator of relief flow can be determined based on pressure measurements gathered by the pressure detection assembly.

Abstract: A pilot-operated relief valve assembly can include a relief valve, and a pressure detection assembly. A valve lift factor or indicator of relief flow can be determined based on pressure measurements gathered by the pressure detection assembly.

Abstract: A pilot-operated relief valve assembly can include a relief valve, and a pressure detection assembly. A valve lift factor or indicator of relief flow can be determined based on pressure measurements gathered by the pressure detection assembly.

Abstract: A pilot-operated relief valve assembly can include a relief valve, and a pressure detection assembly. A valve lift factor or indicator of relief flow can be determined based on pressure measurements gathered by the pressure detection assembly.

Abstract: A method and apparatus for calibrating a turbine flow meter via adjustment of electromagnetic sensor position are disclosed herein. In one embodiment, a turbine flow meter includes a flow tube, a plurality of electromagnetic pickups, and a locator plate. The electromagnetic pickups are configured to detect rotation a flow indicator in the flow tube. The pickups are secured to the locator plate. The locator plate is configured to adjustably position the pickups relative to the flow tube.

Abstract: A method and apparatus for calibrating a turbine flow meter via adjustment of electromagnetic sensor position are disclosed herein. In one embodiment, a turbine flow meter includes a flow tube, a plurality of electromagnetic pickups, and a locator plate. The electromagnetic pickups are configured to detect rotation a flow indicator in the flow tube. The pickups are secured to the locator plate. The locator plate is configured to adjustably position the pickups relative to the flow tube.