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Steam Sizing Chart
Cv calculation is an interactive process requiring knowledge of valve dynamics, piping geometry factors, and outlet velocities. In practice, this sizing chart is based on emperical values and will cater for most applications.
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Stainless Steel Direct Operated Pressure Regulator SRV461/463
Types SRV461/463 Direct Acting Pressure Reducing Valve with nonrising adjustment screw, O-ring soft seal on valve plug for tight ANSI Class VI shutoff, and 316 Ti stainless steel construction for wetted parts.
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Pilot Operated Pressure Regulators 6" 25P
The 25P is a self-actuated pilotoperated pressure regulator. Downstream pressure is fed back through an external sensing line to the pressure pilot, which adjusts the opening of the main valve so as to maintain the set pressure. The valve meets Class IV shut-off specifications but is not suitable for dead-end service.