Data Sheet

HP Valve
D101635X012
Product Bulletin
51.2:HP
October 2014
18
Figure 8. NPS 2 Fisher HPSTrim withCavitrolIII
3-Stage Cage
FLOW
W5818-1
Figure 9. Fisher HPT Trim with Whisper Trim III Level
A1 Cage (also available in HPD [NPS 2-6] and HPS
[NPS 2 and 3])
FLOW
W5952-1
C-seal Trim Description
C-seal trim is available for HPD and HPAD valves with
port diameters from 2.875 inches through 5.375
inches.
With C-seal trim, a balanced valve can achieve
high-temperature, Class V shutoff. Because the C -seal
plug seal is formed from metal (N07718 nickel alloy)
rather than an elastomer, a valve equipped with the
C-seal trim can be applied in processes with a fluid
temperature of up to 593_C (1100_F).
Figure 10. Fisher HPD Trim with Whisper Trim III
Level D Cage (also available in HPT and HPS)
FLOW
W5951-1
Figure 11. Fisher HPAS Trim with Micro-Flat Va lve
Plug
FLOW
W6021-1
Fisher TSO (Tight Shutoff) Trim
Capabilities
TSO trim is available for HPS and HPT valves with port
diameters as defined in table 5. Also see figure 3 and
table 4.
TSO trim consists of a protected soft seat plus PEEK
anti-extrusion rings with a spring-loaded PTFE plug
seal. Used only in flow down applications, TSO trim
offers unparalleled shutoff integrity, resulting in longer
plug and seat life. For additional information contact
your Emerson Process Management sales office.