Flowserve Corp., a global provider of fluid motion and control products and services, has introduced the Flowserve Worcester CPT characterised seat control valve. CPT series valves can be used in systems that control steam pressure or pH levels, operate in low temperature cryogenic conditions or up to 1000F, and meet EPA and OSHA specifications for containing toxic chemicals. Widely used in the oil and gas industry, the CPT has been approved by Factory Mutual for fuel gas safety shut-off service and flow control. CPT valves feature a patented seat technology, made from self-lubricated, full-contact sintered stainless steel, impregnated throughout with TFE or graphite. This seating material provides positive shutoff and eliminates galling when paired with the hard coated, super-round ball, which leads to lower torque, greater precision, and longer equipment life. Seats are available in several standard equal-percentage “V” shapes or linear-characteristic slots, as well as other customised characteristics such as dual-angle, noise/cavitation attenuation, and multistage pressure drop. These features permit the CPT valve to be optimised for any specific application, and to be re-configured when system parameters change.