Fisher NotchFlo DST Control Valve0 pages

Product Bulletin

NotchFlo DST Valve

80.2:022
August 2014

D103036X012

Fisherr NotchFlo™ DST Control Valve
Fisher NotchFlo DST control valves offer excellent
control of liquid services with high pressure drops and
entrained particulate. The dirty service anti-cavitation
trims (figure 1) feature multi-stage protection against
damaging effects of cavitation and erosive solids.
Fisher NotchFlo DST offers trim selections for CL600
3-stage, CL900/1500 4-stage, and CL2500 6-stage.

Features

Long Trim Life–NotchFlo DST control valves feature
a protected seat design whereby the shutoff
function is separate from the throttling areas of the
trim.
W9050

Fisher NotchFlo DST Control Valve

Class V Shutoff–Use of hardened metal seats
provides tight shutoff to minimize seat erosion.

High Pressure Drops–Rugged cage guiding of the
plug, combined with a staged pressure drop,
enables the NotchFlo DST control valve to be
effective in a wide range of allowable high pressure
drop applications. It can be operated by either
spring and diaphragm or piston actuators,
depending on plug design (balanced or unbalanced)
and application requirements.

www.Fisher.com

Sour Service Capability–Materials are available for
applications handling sour fluids. All references in
this document are for NACE MR0175-2002 unless
otherwise noted. Contact your Emerson Process
Management sales office for information on NACE
MR0175/ISO 15156 and NACE MR0103.

Availability–NotchFlo DST control valves are
available in both globe and angle valve body
designs.