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Fisher™ NotchFlo™ DST Control Valve
Fisher Notch Flo
Fisher™ NotchFlo™ DST Control Valve
Fisher NotchFlo DST control valves are designed for dirty, cavitating services.
The trim in this valve utilizes a series of flow restrictions and expansions to eliminate cavitation, while allowing up to 12.7 mm (1/2 in) diameter particulate to pass through without plugging.
Fisher™ NotchFlo™ DST Control Valve

Specs

Certifications
ATEX, CUTR, PED, CRN, NACE
Critical Service
Cavitation, Dirty Service
Flow Characteristics
Linear
Material
Carbon Steel, Stainless, Alloy
Operating Temperature
Standard Temperature
Pressure Class
ASME
Process Connection Type
Flanged, Butt Weld, Threaded, Socket Weld
Shutoff Class
Class V (FCI 70-2)
Valve Size
NPS 1, NPS 1-1/2, NPS 2, NPS 3, NPS 4, NPS 6, NPS 8
Valve Size Standard
NPS
Other Configurations
Contact your local Emerson business partner or sales office to learn about additional specifications or options for this product.

Features

  • Designed to prevent cavitation.
  • Has a pressure drop limit of 290 bar (4200 psi).
  • Can pass up to 12.7 mm (1/2 in) diameter particulate.
  • The protected seat design separates the shutoff function from the throttling function to protect the seating surfaces from throttling wear.
  • Hardened metal seats provide tight shutoff to minimize seat erosion.
  • Cage-type trim allows removal and inspection of parts without taking the valve body out of the pipeline.