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.

Category:

Description

Features and Specifications

  • 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.

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.