Fisher™ Dirty Service Trim

Fisher

Fisher™ Dirty Service Trim

Fisher

Fisher Dirty Service Trim is designed for dirty, cavitating services. This trim utilizes a series of flow restrictions and expansions to eliminate cavitation, while allowing up to 19 mm (3/4 in) diameter particulate to pass through without plugging. Each of the trim stages has a successively larger flow area. The result is very efficient operation because typically 80 percent of the overall pressure drop is taken in the initial stages, where there is little danger of cavity formation which could result in cavitation.

Specifications

Certifications
SIL capable, ATEX, CUTR, PED, CRN, NACE
Critical Service
Cavitation, Dirty Service
Flow Characteristics
Linear
Material
Carbon Steel, Stainless
Operating Temperature
Standard Temperature
Pressure Class
ASME
Process Connection Type
Flanged, Butt Weld, RTJ
Shutoff Class
Class V (FCI 70-2)
Valve Size
NPS 1, NPS 1-1/2, NPS 2, NPS 2-1/2, NPS 3, NPS 4, NPS 6, NPS 8, NPS 12, NPS 14, NPS 16, NPS 18, NPS 20, NPS 4x2, NPS 6x4, NPS 8x6, NPS 12x8, NPS 16x12, NPS 20x16, NPS 24x16, NPS 24x20
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 19 mm (3/4 in) diameter particulate.
  • The protected seat design separates the shutoff function from the throttling function to protect the seating surfaces from throttling wear.
  • Cage-type trim allows removal and inspection of parts without taking the valve body out of the pipeline.
  • Can be retrofitted into existing Fisher easy-e™, EH, or HP series valves.

Documents & Drawings