Instruction Manual
D103553X012
Large ET and ED Valves
July 2017
3
Table 1. Specifications
Valve Sizes
ED, ET, and ET-C:
J
NPS 12,
J
14,
J
16,
J
18,
J
20,
and
J
30
EWD, EWT, and EWT-C
(2)
:
J
NPS 16x12,
J
20x16,
J
24x16, and
J
24x20
End Connection Styles
Flanged:
CL150, 300, and 600 raised
-
face or ring
-
type
joint flanges per ASME B16.5.
NPS 30 valve size has series A or B flanges, per ASME
B16.47
Buttwelding:
All ASME B16.25 schedules through
schedule 120 that are compatible with the ASME B16.34
valve body rating
For other end connections, contact your
Emerson sales
office
or Local Business Partner for details.
Maximum Inlet Pressure
(1)
Flanged:
Consistent with CL150, 300, and 600
pressure
-
temperature ratings per ASME B16.34
Buttwelding:
Consistent with CL600
pressure-temperature ratings per ASME B16.34
Shutoff Classifications per ANSI/FCI 70‐2 and IEC
60534‐4
ET, ET-C, EWT, and EWT-C:
Standard:
Class V
Optional (for all cages except Cavitrol III):
Class IV
ED and EWD:
Standard:
Class IV
Optional:
Class V
Flow Characteristics
Standard Cages:
J
Linear or
J
Equal percentage
Whisper Trim III and WhisperFlo
Cages:
Linear
Cavitrol III Cages:
Linear
For other characteristics, contact your Emerson sales
office or Local Business Partner for details.
Flow Direction
Standard Cages:
Down
Whisper Trim III and WhisperFlo Cages:
Up
Cavitrol III Cages:
Down
Yoke Boss and Stem Diameters
J
127 mm (5H
-
inch) diameter yoke boss, with 31.8
mm (1.25 inch) diameter valve stem for all valves except
NPS 30
J
179 mm (7‐inch) diameter yoke boss, with
50.8 mm (2 inch) diameter valve stem for NPS 30 valve
Bonnet Style
ED, EWD, ET, and EWT:
Style 1 extension
ET-C and EWT-C:
Style 3 extension
Approximate Weights
See table 2
1. Do not exceed the pressure or temperature limits in this manual, on the equipment nameplate, and any applicable code limitations.
2. Size designations are “end connection size” x “nominal trim size”.
