A drilling mud fluid, is an oil or water-based mix of minerals (barite, calcium carbonate), salts and polymers formulated to protect the drill and the shaft during oil or gas borehole drilling. Drill cuttings are produced as the rock is broken by the drill bit advancing through the rock or soil; the cuttings are usually carried to the surface by drilling fluid circulating up from the drill bit. The discharge of the oil based cuttings generated with oil based fluids is not permitted in most offshore-drilling areas, thus all such cuttings and waste fluids are processed, and shipped to shore for disposal. Our comprehensive range of Knife Gate Valve products can meet the most demanding of applications, complimented by our engineering and process application knowledge, and supported by our installation guidance program to ensure you achieve the desired result! Our ORBINOX ‘ET’ series knife gate valves, designed to MSS-SP-81, can be manufactured from WCB or CF8M materials (NACE compliant), including the actuator specification, and is the perfect choice for your arduous oil based drill cuttings applications.