Data Sheet

EH and EHA Valves
D100042X012
Product Bulletin
51.2:EH
April 2015
19
B1960-1*
Note:
Do not exceed the maximum pressure and temperature for the pressure rating of the body material and valve size used. Refer to tables 4 and 5 for pressure/temperature
limits of the trim used. Intermediate pressure/temperature ratings are found in separate bulletin, Increased pressure/temperature ratings for EH AND EW series steel
valves.
WCC STEEL VALVES
LCC STEEL VALVES
CF8M (316 OR 316H ABOVE 538°C
[1000°F]) STAINLESS STEEL VALVES
WC9 CHROME-MOLY STEEL VALVES
CL900
CL1500
CL2500
TYPICAL FOR ALL GRAPHS
THE LCC LOWER LIMIT CAN BE EXTENDED
TO -46_C (-50_F) WITH IMPACT TESTING
C12A VALVES
Figure 20. Pressure/Temperature Limits for CL2500 Valves (NPS 1-1/2 x 1 through 6 Globe)
Material Selection
Guidelines
Please use these numbered steps as a guideline for the
selection of materials:
1. Determine the pressure/temperature rating of the
valve size and material required. Inlet pressure and
temperature must always be limited by the applicable
ASME pressure/temperature rating.
2. Select the desired valve style from the Available
Configurations specification and from the shutoff
classifications listed in table 9.
3. Select desired materials from tables 10, 11, 12, and
13 and figures 20, 21, and 22. The temperature
capabilities determined from figures 20, 21, and 22
may be further limited by the temperature capabilities
of materials selected from tables 10, 11, 12, and 13.
Refer to figures 20, 21, and 22 to determine pressure
drop limits of the body-trim combinations selected.
Inlet pressure and temperature must always be limited
by the applicable ASME pressure/ temperature rating.
Contact your Emerson Process Management sales
office. for special materials for temperatures
exceeding the following maximum limits: EHD valve
[593_C (1100_F)] and the EHT valve [232_C (450_F)].