Data Sheet

YD and YS Valves
D100031X012
Product Bulletin
51.1:YD
June 2014
3
Specifications (continued)
Valve Plug Styles
YD: Balanced, metal-seated
YS: Unbalanced, metal-seated
RatedTravelsandPortDiameters
See table 1
Yoke Boss and Stem Diameters for Actuator
Mounting
VALVE SIZE, NPS
VALVE STEM AND YOKE BOSS
DIAMETERS, INCHES
Standard Optional
Yoke Boss Stem Yoke Boss Stem
mm
1/2, 3/4, 1, 1-1/2 54 9.5 71 12.7
2, 2-1/2, 3, 4 71 12.7 90 19.1
6 90 19.1 127 25.4
8 90 19.1 --- ---
Inch
1/2, 3/4, 1, 1-1/2 2-1/8 3/8 2-13/16 1/2
2, 2-1/2, 3, 4 2-13/16 1/2 3-9/16 3/4
6 3-9/16 3/4 5 1
8 3-9/16 3/4 --- ---
Actuator Sizing
Pneumatic:Seetables6,7,and8
Electric: See Fisher Catalog 14. Electric actuators
must be capable of up and down thrust limits
Bonnet Styles
See table 11
Construction Materials
Valve Body and Bonnet:
J Cast iron (except extension
bonnet),
J WCC steel, J WC9 chrome moly steel, or
J CF8M (316 SST)
Trims: See table 2
All Other Parts: See table 3
Approximate Shipping Weights
VALVE SIZE, NPS
SHIPPING WEIGHT
kg lb
1/2, 3/4
1
1-1/2
2
14
18
27
39
30
40
60
85
2-1/2
3
4
6
8
50
68
109
227
345
110
150
240
500
760
Options
J Lubricator or lubricator/isolating valve for packing
lubrication
J Drilled and tapped connection in extension bonnet
for leakoff
J ENVIRO-SEAL live-loaded packing systems
(4)
1. PN (or other) ratings and end connections can usually be supplied; consult your Emerson Process Management sales office.
2. The pressure or temperature limits in this bulletin and any applicable standard limitations should not be exceeded. OPERATIVE LIMITS term is defined in SAMA Standard PMC 20.1.
3. 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.
4. For additional information, see Bulletin 59.1:061 ENVIRO-SEAL and HIGH-SEAL Packing Systems for Sliding-Stem Valves.
5. BWE not available for NPS 8 with high temperature trim, see figure 2. Lower cage cannot be removed unless bottom flange adaptor is removed.