In the world of process control engineering, there’s so much to understand about automatic control valves. But one factor that probably doesn’t make the Top 10 List is actuator bench set, as it applies to spring- and diaphragm-type actuators.
Part two in a four-part series on valve sizing and selection explains how to drive product quality and equipment reliability through process consistency.
Local pressure inside the control valve may fall below the vapor pressure and create bubbles that may not condense when pressure is recovered downstream of the control valve.
Spirax Sarco’s BCV43 series blowdown control valves in line sizes 3/4” and 1″ are based on the SPIRA-TROL platform and are designed to maintain the TDS at an optimum level, keeping blowdown to a minimum.
Clippard's EGV Series valves are electronically piloted versions of the GV series valves, for use in large-flow, low-leak applications.
Singer Valve has added Single Rolling Diaphragm (SRD) technology to its 106/206 PGM Valve series, which is designed for particularly sensitive applications or situations where valves are difficult to access and maintain.