Data Sheet

EW Valve
D100023X012
Product Bulletin
51.1:EW
August 2012
4
Specifications (continued)
Yoke Boss and Stem Diameters
See table 21
Typical Bonnet Styles (see table 23)
J Plain, J style 1 cast extension, J style 2 cast
extension,
J ENVIRO-SEAL bellows seal bonnet
Packing Arrangements
J Standard PTFE, J Double PTFE, J Graphite,
J ENVIRO-SEAL PTFE, J ENVIRO-SEAL Duplex,
J ENVIRO-SEAL Graphite ULF, J HIGH-SEAL
Approximate Weights
See table 22
Options
J Lubricator, J lubricator/isolating valve, J drilled
and tapped connection in extension bonnet for
leak-off service,
J valve body drain plug,
J ENVIRO-SEAL bellows seal bonnet for positive stem
sealing of hard-to-handle fluids at temperatures up to
566_C (1000_F),
J style 3 fabricated extension
bonnet made on order to a specific l ength for
cryogenic service,
J special seismic service bonnet,
J packings suitable for nuclear service, and J forged
bonnet for 5 in. (127 mm) yoke boss on NPS 8x6
CL900 valve,
J Class V shutoff for EWT above 232_C
(450_F) using PEEK anti-extrusion rings
J Class V
shutoff for EWD up to 593_C (1100_F) using C-seal
trim
1. The pressure/temperature limits in this bulletin and any applicable standard or code limitation should not be exceeded.
2. Certain bonnet bolting material selections may require a CL600 easy-e valve assembly to be derated. Contact your Emerson Process Management sales office for more information.
3. Only NPS 12x8 CL900 valve bodies with threaded (-1) seat rings can take full CL900 pressure drops; CL900 valve bodies with clamped (no dash number) seat rings are limited to CL600
pressure drops. Also, there are two different NPS 8x6 CL900 valve bodies, one for use only with Cavitrol III cages and the other for use with all other constructions. An NPS 8x6 CL900 valve body
with Cavitrol III cage can take full CL900 pressure drops. For information on other NPS 8x6 constructions that can take full CL900 pressure drops, contact your Emerson Process Management
sales office. All other NPS 8x6 constructions are limited to CL600 pressure drops (1440 psid flowing drop) even though installed in a CL900 valve body.
4. Restriction based on excessive noise if max nP/P1 ratio for a given cage level is exceeded.
5. Down:in through cage and out through seat ring (direction shown in figure 1).
6. Up:in through seat ring and out through cage as shown in figure 13.
ENVIRO-SEAL Packing System Specifications
Applicable Stem Diameters
J 19.1 (3/4), J 25.4 (1), and J 31.8 (1-1/4)
diameter valve stems
Maximum Pressure/Temperature Limits
(1)
To Meet the EPA Fugitive Emission Standard of 100
PPM
(2)
For ENVIRO - SEAL PTFE and ENVIRO - SEAL Duplex packing
systems: full CL300 up to 232_C(450_F)
For ENVIRO
- SEAL Graphite ULF packing system: 1500
psig (104 bar) at 316_C(600_F)
Construction Materials
PTFE Packing Systems:
Packing Ring and Lower Wiper: PTFE V-ring
(3)
Male and Female Adaptor Rings: Carbon-filled PTFE
V-ring
Graphite ULF Packing Systems: Graphite rings
Anti-Extrusion Washer: Filled PTFE (not required for
graphite packing)
Lantern Ring: S31600 (316 stainless steel) (not
required for graphite packing)
Packing Box Flange: S31600
Spring:
J 17-7PH stainless steel, J N06600, or
J S17700
Packing Follower: S31600 lined with carbon-filled
PTFE
Packing Box Studs: Strain-hardened 316 stainless
steel
Packing Box Nuts: 316 stainless steel SA194 Grade
8M
1. Refer to the valve specifications in this bulletin for pressure/temperature limits of valve parts. Do not exceed the pressure/temperature rating of the valve. Do not exceed any applicable code
or standard limitation.
2. The Environmental Protection Agency (EPA) has set a limit of 100 parts per million (ppm) for fugitive emissions from a valve in selected V OC (VolatileOrganicCompound)services.
3. In vacuum service, it is not necessary to reverse the ENVIRO-SEAL PTFE packing rings.