Data Sheet

EH and EHA Valves
D100042X012
Product Bulletin
51.2:EH
April 2015
26
Table 16. Flowing Pressure Drops Limits for Fisher EHD and EHT Valves (Without Cavitrol III or Whisper Trim III)
(NPS 8 to 14 Valves)
FLOW MEDIA
VALVE STEM CONNECTOR SIZE MAXIMUM FLOWING PRESSURE DROP BAR (PSID)
mm (inch) Flowing Down Flowing Up with Diverter Cone
All except boiler feedwater 50.8 mm (2-inch) 138 (2000) 259 (3750)
Boiler feedwater 50.8 mm (2-Inch) 69 (1000) 259 (3750)
FLUID TEMPERATURE, _F
FLUID TEMPERATURE, _C
PRESSURE DROP, PSI
PRESSURE DROP, BAR
FLUID TEMPERATURE, _F
FLUID TEMPERATURE, _C
PRESSURE DROP, PSI
PRESSURE DROP, BAR
WC9 CHROME-MOLY STEEL VALVES CF8M (316 OR 316H ABOVE 537_C [1000_F]) STAINLESS STEEL VALVES
Notes:
1. Do not exceed the maximum pressure and temperature for the pressure rating of the valve material and valve size used. Refer to figure 10 for pressure/
temperature limits of the trim used. Intermediate class pressure/temperature ratings are found in separate bulletin, Increased pressure/temperature rat
in
g
s for EH series and EW series steel valve bodies
(
D100075X012 or D100076X012
)
.
B1959-1
FLUID TEMPERATURE, _F
FLUID TEMPERATURE, _C
PRESSURE DROP, PSI
PRESSURE DROP, BAR
WCC STEEL VALVES
CL1500
CL2500
TYPICAL FOR
ALL GRAPHS
C12A VALVES
Figure 22. Pressure/Temperature Limits for CL1500 and 2500 Valves (NPS 8 through 14 Valves)