Emerson Fisher YD, Fisher YS Data Sheet
YD and YS Valves
D100031X012
Fisherr YD and YS Control Valves
Fisher YD and YS three-way cage-guided valves are
designed for throttling or flow-switching (on-off)
service, and are available in the following
constructions:
YD (Balanced)–For general converging (flow-mixing)
and diverging (flow-splitting) service. Available in
standard and high-temperature versions (see figure 1).
YS (Unbalanced)–For general converging service.
When used in diverging service, recommended for
on-off applications only (see figure 1).
The Fisher YD and YS product lines are available for a
wide range of applications, including sulfide and
chloride stress-cracking environments common to the
oil and gas production industries. To discuss available
constructions, contact your Emerson Process
Management sales office and include the applicable
codes and standards required for these environments.
Product Bulletin
51.1:YD
June 2014
Features
Economy--Balanced valve plug construction in the
YD permits use of smaller, lower-cost actuators. A
single one-piece valve accommodates both trim
designs and uses Fisher easy-e™ bonnets, gaskets,
and packing, thus cutting spare part inventory
costs.
Application Flexibility--Multipurpose capability
results from a valve designed specifically for
three-way control. A variety of valve sizes, end
connections, port diameters, and trim materials
provides design versatility for your control needs.
Excellent Sealing Capabilities--The ENVIRO-SEAL™
packing system option is available. This packing
system provides excellent sealing, guiding, and
loading force transmission.Theimprovedsealingof
the ENVIRO-SEAL system can help control emissions
to below the EPA (Environmental Protection
Agency) limit of 100 ppm (parts per million) from
W7593
Fisher YD Valve with 667 Actuator
valves. The ENVIRO-SEAL packing systems feature
PTFE, Graphite ULF, or Duplex packing with
live-loading for reduced packing maintenance.
Long Trim Life--Hardened trim materials provide
excellent wear resistance.
Easy Maintenance--Cage-type construction
simplifies inspection and removal of parts.
Parts Commonality--Packing parts, including
packing flange, studs and nuts, and packing kits, are
common to the YD, YS, and Fisher easy-e control
valves.
Valve Plug Stability-- Rugged cage guiding provides
high valve plug stability, which reduces vibration
and mechanical noise.
www.Fisher.com
Product Bulletin
51.1:YD
June 2014
Specifications
YD and YS Valves
D100031X012
Valve Sizes, Ratings, and End Connections
(1,2)
Cast Iron Valves
Flanged: NPS 1 through 6 CL125 flat-face or 250
raised-face flanges per ASME B16.1
Screwed: NPS 1/2 through 2 consistent with ASME
B16.4
Steel and Stainless Steel Valves
Flanged: NPS 1 through 8 CL150, 300, and 600
raised-face or ring-type joint flanges per ASME B16.5
Screwed or Socket Welding: NPS 1/2 through 2
consistent with ASME B16.11
Buttwelding: NPS 1 through 8
(5)
. All available
ASME B16.25 schedules that are consistent with
ASME B16.34
Maximum Inlet Pressures and Temperatures
(1)(2)
As listed below, unless limited by maximum pressure
drop or material temperature capabilities.
Cast Iron Valves
Flanged: Consistent with CL125B or 250B per ASME
B16.1
Screwed: Consistent with flanged CL250 per ASME
B16.4
Steel and Stainless Steel Valves
Flanged: Consistent with CL150, 300, and 600
(3)
per
ASME B16.34
Screwed or Welding: Consistent with flanged CL600
per ASME B16.34
(3)
- continued -
Operative Pressure/Temperature Limits
(1, 2)
Pressure Drop Limit Due to Gasket Loading:
See table 1
Shutoff Pressure Drop Limits with Typical A ctuators:
Seetables6,7,and8
Pressures and Temperatures for Trims Only:
Seefigure7
Temperatures for Body-Trim Combinations:
See table 5
Temperatures for All Other Parts: See table3
Shutoff Classifications per ANSI/FCI 70-2
and IEC 60534-4
YD
Standard Design: Class IV
High-Temperature Design: Class II
YS
Standard Class: Class IV
Optional Class: Class V (NPS 1 through 4)
Flow Characteristic
Linear
Flow Direction
Seefigure6
Flow Coefficients and Noise Level Prediction
Refer to Fisher Catalog 12
Table of Contents
Features 1.....................................
Specifications 2................................
ENVIRO-SEAL Packing System Specifications 4......
Flow Directions 5...............................
ENVIRO-SEAL, HIGH-SEAL Packing Systems 6........
Installation 6..................................
Tables
Travel, Port, and Gasket Loading
Pressure Drop Information 8...................
Trim Materials 8................................
Materials and Temperature Limits for Other Parts 9..
Valve Body-Trim Temperature Capabilities 10.......
2
Maximum Allowable YD Shutoff Pressure
Drops with 657 and 667 Actuators 12...........
Maximum Allowable YS
(Converging Service) Shutoff Pressure
Drops with 657 and 667 Actuators 15...........
Maximum Allowable YS
(Diverging Service) Shutoff Pressure Drops with 657
and 667 Actuators (ON-OFF) application only--
No throttling service 18.......................
Bonnet Selection Guidelines 22...................
Dimensions 22.................................
Ordering Information 22.........................
YD and YS Valves
D100031X012
Specifications (continued)
Product Bulletin
51.1:YD
June 2014
Valve Plug Styles
YD: Balanced, metal-seated
Bonnet Styles
See table 11
YS: Unbalanced, metal-seated
Construction Materials
RatedTravelsandPortDiameters
See table 1
Valve Body and Bonnet:
bonnet),
J WCC steel, J WC9 chrome moly steel, or
J Cast iron (except extension
J CF8M (316 SST)
Yoke Boss and Stem Diameters for Actuator
Mounting
VALVE STEM AND YOKE BOSS
VALVE SIZE, NPS
Yoke Boss Stem Yoke Boss Stem
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 --- ---
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 --- ---
DIAMETERS, INCHES
Standard Optional
mm
Inch
Actuator Sizing
Pneumatic:Seetables6,7,and8
Electric: See Fisher Catalog 14. Electric actuators
must be capable of up and down thrust limits
1. PN (or other) ratings and end connectionscan usually be supplied; consultyour 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 PMC20.1.
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.
Trims: See table 2
All Other Parts: See table 3
Approximate Shipping Weights
VALVE SIZE, NPS
1/2, 3/4
1
1-1/2
2
2-1/2
3
4
6
8
SHIPPING WEIGHT
kg lb
14
18
27
39
50
68
109
227
345
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
30
40
60
85
110
150
240
500
760
(4)
3
Product Bulletin
51.1:YD
June 2014
ENVIRO-SEAL Packing System Specifications
YD and YS Valves
D100031X012
Applicable Stem Diameters
J 9.5 mm (3/8 inches), J 12.7 (1/2), J 19.1 (3/4),
and
J 25.4 (1) diameter valve stems
Male and Female Adaptor Rings: Carbon-filled PTFE
V-ring
Anti-Extrusion Washer: Filled PTFE
Lantern Ring: S31600 (316 stainless steel)
Maximum Pressure/Temperature Limits
(1)
To Meet the EPA Fugitive Emission Standard of 100
(2)
PPM
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: 104 bar
(1500 psig) at 316_C(600_F)
Spring:
Packing Box Flange: S31600
Packing Follower: S31600 lined with carbon-filled PTFE
Packing Box Studs: SA193-B8M Class 2
Packing Box Nuts: S31600
Graphite ULF Packing Systems
Packing Ring: Graphite rings
Spring:
Packing Box Flange: S31600
J 17-7PH stainless steel or J N06600
J 17-7PH stainless steel or J N06600
Packing Follower: S31600 lined with carbon-filled PTFE
Construction Materials
PTFE Packing Systems
Packing Ring and Lower Wiper: PTFE V-ring
1. Refer to the valve specifications in this bulletin for pressure/temperature limits of valve p arts. 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 VOC (VolatileOrganicCompound)services.
3. In vacuum service, reversing the ENVIRO-SEAL PTFE packing rings is not necessary.
(3)
Packing Box Studs: SA193-B8M Class 2
Packing Box Nuts: S31600
Figure 1. Construction Details
UPPER
CAGE
CAGE
O-RING
LOWER
CAGE
VALVE
PLUG
SEAT
RING
W9045-1
STANDARD YD
RETAINING
RING GASKETS
LOWER
CAGE
SEAL
RING
BACKUP
RING
SEAT RING
GASKET
40A3551-C
A1891-1
DETAIL OF HIGH TEMPERATURE
YD TRIM
UPPER
CAGE
VALVE
PLUG
SEALS
RETAINING
RING
LOWER
SEAT
RING
W9046-1
VALVE
PLUG
REVERSIBLE
UPPER
SEAT RING
UPPER
SEAT RING
GASKET
SPRING
LOWER
SEAT RING
GASKET
YS
4
YD and YS Valves
D100031X012
Figure 2. Construction Details - NPS 8 YD-High Temperature
GASKETS
PLUG
Product Bulletin
51.1:YD
June 2014
UPPER CAGE
VALVE BODY
LOWER CAGE
B1504-6
E1433
Figure 3. Construction Details - NPS 8 YD
STEM
UPPER
CAGE
BONNET
CAGE
ADAPTOR
PLUG
LOWER
CAGE
ADAPTOR
FLANGE
Flow Directions
YD(CommonPortonBottom)seefigure6
Plug Down, Left-Hand Port Closed--Flow in
converging service is from right to bottom port and
in diverging service is from bottom to right port.
Plug Up, Right-Hand Port Closed--Flow in
converging service is from left to bottom port and
in diverging service is from bottom to left port.
Intermediate Plug Positions-- Flow in converging
service is from both left and right ports to bottom
port, with capacities in proportion to plug travel.
Flow in diverging service is from bottom port to
both left and right ports, with capacities split in
proportion to plug travel.
YS (Common Port on Left) seefigure6
58B1505-A
Plug Down, Bottom Port Closed--Flow in converging
service is from right to left port and in diverging
service is from l eft to right port.
5
Product Bulletin
51.1:YD
June 2014
YD and YS Valves
D100031X012
Plug Up, Right-Hand Port Closed--Flow in
converging service is from bottom to left port and
in diverging service is from left to bottom port.
Intermediate Plug Positions--Flow in converging
service is from both bottom and right ports to left
port, with capacities in proportion to plug travel.
Figure 4. Cutaway of ENVIRO-SEAL Bellows Seal
Bonnet and Internal Shroud, Showing Bellows
operational life and reliability of these systems also
reduce your maintenance costs and downtime.
For applications requiring compliance with
environmental protection regulations, the unique
ENVIRO-SEAL packing system (figure 5) and, for
hazardous service, the ENVIRO-SEAL bellows seal
system (figure 4) are offered. The emission control
packing system keeps emission concentrations below
the EPA 100 ppm requirement.
For an excellent stem seal in applications that are not
environmentally sensitive, the HIGH-SEAL Graphite
ULF packing system (figure 5) is offered. The
HIGH-SEAL packing system provides excellent sealing
at pressure/temperature ratings beyond ENVIRO-SEAL
limits. ENVIRO-SEAL systems may also be applied for
excellent stem sealing in higher pressure/temperature
applications not requiring EPA compliance.
ENVIRO-SEAL packing systems, available with PTFE,
Graphite ULF, or Duplex packing, and the HIGH-SEAL
Graphite ULF packing system feature live-loading and
unique packing-ring arrangements for long-term,
consistent sealing performance.
W5852-1
ENVIRO-SEAL, HIGH-SEAL
Packing Systems
ENVIRO-SEAL and HIGH-SEAL packing systems offer
excellent sealing capabilities. These systems easily
install i n your existing valves or can be purchased with
new valves. These systems help you seal your process
to conserve valuable process fluid. The long
Installation
Although YD and YS valves may be mounted with the
actuator in any position relative to the valve, the
normal position is with the valve in a horizontal run of
pipe and the actuator vertical above the valve. The
actuator should be supported in any position other
than vertical. Orient the valve so that valve plug
positions and flow directions will conform to the flow
indicator plate on the valve body.
Dimensions are shown in figure 8.
Note: For the NPS 8 high temperature construction,
thebottomflangeMUSTberemovedtoaccessand
remove the lower cage (see figure 2). BWE end
connections are not available for the NPS 8 high
temperature constructions for this reason.
6
YD and YS Valves
D100031X012
Figure 5. ENVIRO-SEAL and HIGH-SEAL Packing Systems
PACKING
BOX
STUD
Product Bulletin
51.1:YD
June 2014
PACKING
BOX
STUDS
SPRING
W8533-1
SPRINGS
PACKING
TYPICAL HIGH-SEAL PACKING SYSTEM
WITH GRAPHITE ULF PACKING
FOLLOWER
PACKING
BOX
STUD
SPRINGS
ANTIEXTRUSION
RING
LANTERN
RING
W5803-3
PACKING
RING
VALVE
BONNET
TYPICAL ENVIRO-SEAL PACKING SYSTEM
WITH PTFE PACKING
PACKING
W8532-1
FOLLOWER
TYPICAL ENVIRO-SEAL PACKING SYSTEM
WITH GRAPHITE ULF PACKING
W7018
TYPICAL ENVIRO-SEAL PACKING SYSTEM
WITH DUPLEX PACKING
7
Product Bulletin
51.1:YD
June 2014
Table 1. Travel, Port, and Gasket Loading Pressure Drop Information
MAXIMUM
VALVE SIZE,
NPS
1/2, 3/4, 1, 1-1/2
2, 2-1/2
3
4
6
(2)
8
1. For standard YD only. For high temperature YD, consult your Emerson Process Management sales office.
2. NPS 8 only available in YD construction.
RATED TRAVEL
mm Inches mm Inches
19
29
38
51
51
57.2
0.75
1.125
1.5
2
2
2.25
SEAT RING
PORT DIAMETER
33.3
58.7
87.3
111.1
177.8
177.8
1.3125
2.3125
3.4375
4.375
7
7
PRESSURE DROP LIMIT
DUE TO GASKET LOADING
YS YD
bar psig bar psig
41.4
31.7
37.9
38.6
52.4
---
600
460
550
560
760
---
Table 2. Trim Materials
PART
Valve Plug
Upper Cage and Lower Cage CB7Cu-1 CF8M, ENC CF8M, ENC
Upper Cage Retaining Ring (High-Temperature YD Only) S41600 CF8M CF8M
Upper Seat Ring (YS Only) and Lower Seat Ring S41600 S31600 S31600/CoCr-A
1. Standard trim for stainless steel valves.
YD CB7Cu-1(17-4PH SST) CF8M (316 SST) CF8M/CoCr-A
YS S41600 (416 SST) S31600 (316 SST) CF8M/CoCr-A
Trim 1 Trim 2
MATERIAL
(1)
YD and YS Valves
D100031X012
(1)
103.4 1500
Trim 2A
Figure 6. Flow Directions
10A8391-A
YD
PLUG DOWN
B2413
10A8391-A 10A8392-A
YD
PLUG UP
YS
PLUG DOWN
10A8392-A
YS
PLUG UP
8
Loading...