Emerson Process Management has expanded its line of Fisher dirty service control-valve solutions to include the Notchflo DST valve and Fisher DST control valve trim.
The line-up offers cavitation control for applications known to contain entrained particulate that would damage standard trim components and can be used in the hydrocarbon, power, chemical, pulp and paper, and metals and mining industries.
The Fisher Notchflo DST valve is a multi-stage (three, four or six) anti-cavitation valve available in NPS 1 to 8, in Class 300-1500 globe and Class 600-2500 angle (DN 25 -200, PN50 to PN260 Globe and PN110 to PN420 angle) that can be used in severe service applications.
The Fisher DST control valve trim is a multi-stage (two, three, four, five or six) anti-cavitation trim available in NPS 1 to 16, in Class 300-2500 (DN 25 - 400, PN50 to PN420).
Both the Notchflo and DST are frequently used in high-pressure-drop applications up to 290 bar (4,200psi) in the chemical, refining, oil and gas production, and power industries.
In addition to the expanded lineup of Fisher dirty service-control valves, the Fisher Cavitrol III Trim with improved sealing technologies is available.
It is a multi-stage (two or three) trim available in NPS 1 to 8x6, in Class 900-2500 (DN 25 - 200x150, PN150 to PN420) that can be used in severe service applications where plug-tip erosion and seal wear are issues.
The Fisher Cavitrol III Trim is frequently used in pump recirculation and startup systems in power, process, oil-production and chemical-refining industries Diaphragm Valves Instrument Valve Metering Pump Miniature Valve Solenoid Valve.
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