Product Bulletin YD and YS Valves September 2020 Fisher YD ...

1 YD and YS Control ValvesFisher YD and YS three-way cage-guided Valves aredesigned for throttling or flow-switching (on-off)service, and are available in the followingconstructions:YD (Balanced) For general converging (flow-mixing)and diverging (flow-splitting) service. Available instandard and high-temperature versions (see figure 1).YS (Unbalanced) For general converging used in diverging service, recommended foron-off applications only (see figure 1).The Fisher YD and YS Product lines are available for awide range of applications, including sulfide andchloride stress-cracking environments common to theoil and gas production industries. To discuss availableconstructions, contact your Emerson sales office andinclude the applicable codes and standards requiredfor these Economy--Balanced valve plug construction in theYD permits use of smaller, lower-cost actuators.

2 Asingle one-piece valve accommodates both trimdesigns and uses Fisher easy-e bonnets, gaskets,and packing, thus cutting spare part Application Flexibility--Multipurpose capabilityresults from a valve designed specifically forthree-way control. A variety of valve sizes, endconnections, port diameters, and trim materialsprovides design versatility for your control Long Trim Life--Hardened trim materials provideexcellent wear Easy Maintenance--Cage-type constructionsimplifies inspection and removal of YD Valve with 667 Actuatorn Excellent Sealing Capabilities--The ENVIRO-SEAL packing system option is available. This packingsystem provides excellent sealing, guiding, andloading force transmission. The improved sealing ofthe ENVIRO-SEAL system can help control emissionsto below the EPA (Environmental ProtectionAgency) limit of 100 ppm (parts per million) fromvalves.

3 The ENVIRO-SEAL packing systems featurePTFE, Graphite ULF, or Duplex packing withlive-loading for reduced packing Parts Commonality--Packing parts, includingpacking flange, studs and nuts, and packing kits , arecommon to the YD, YS, and Fisher easy-e Valve Plug Stability-- Rugged cage guiding provideshigh valve plug stability, which reduces vibrationand mechanical and YS ValvesD100031X012 Product :YDSeptember 2020YD and YS ValvesD100031X012 Product :YDSeptember 2020 2 SpecificationsValve Sizes, Ratings, and End Connections (1,2)Cast Iron ValvesFlanged: NPS 1 through 6 CL125 flat-face or 250raised-face flanges per ASME : NPS 1/2 through 2 consistent with and Stainless Steel ValvesFlanged: NPS 1 through 8 CL150, 300, and 600raised-face or ring-type joint flanges per ASME or Socket Welding: NPS 1/2 through 2consistent with ASME : NPS 1 through 8(5).

4 All available ASME schedules that are consistent withASME Inlet Pressures and Temperatures(1)(2)As listed below, unless limited by maximum pressuredrop or material temperature Iron ValvesFlanged: Consistent with CL125B or 250B per : Consistent with flanged CL250 per and Stainless Steel ValvesFlanged: Consistent with CL150, 300, and 600(3) perASME or Welding: Consistent with flanged CL600(3)per ASME Pressure/Temperature Limits(1, 2)Pressure Drop Limit Due to Gasket Loading: See table 1 Shutoff Pressure Drop Limits with Typical Actuators:See tables 6, 7, and 8 Pressures and Temperatures for Trims Only: See figure 7 Temperatures for Body-Trim Combinations: See table 5 Temperatures for All Other Parts: See table 3 Shutoff Classifications per ANSI/FCI 70-2 and IEC 60534-4 YDStandard Design: Class IVHigh-Temperature Design: Class IIYSS tandard Class: Class IVOptional Class: Class V (NPS 1 through 4)Flow CharacteristicLinearFlow DirectionSee figure 6 Flow Coefficients and Noise Level PredictionRefer to Fisher Catalog 12- continued -Table of ContentsFeatures Packing System Specifications Directions , HIGH-SEAL Packing Systems , Port, and Gasket Loading Pressure Drop Information Materials and Temperature Limits for Other Parts Body-Trim Temperature Capabilities Allowable YD Shutoff PressureDrops with 657 and 667 Actuators Allowable YS (Converging Service) Shutoff PressureDrops with 657 and 667 Actuators Allowable YS (Diverging Service) Shutoff Pressure Drops with 657and 667 Actuators (ON-OFF) application only--No throttling service Selection Guidelines Information and YS ValvesD100031X012 Product .

5 YDSeptember 2020 3 Specifications (continued)Valve Plug StylesYD: Balanced, metal-seatedYS: Unbalanced, metal-seatedRated Travels and Port DiametersSee table 1 Yoke Boss and Stem Diameters for ActuatorMountingVALVE SIZE, NPSVALVE STEM AND YOKE BOSSDIAMETERS, INCHESS tandardOptionalYoke BossStemYoke BossStemmm1/2, 3/4, 1, 1-1 , 2-1/2, 3, - -- - -Inch1/2, 3/4, 1, 1-1/22-1/83/82-13/161/22, 2-1/2, 3, 42-13/161/23-9/163/463-9/163/45183-9/163 /4- - -- - -Actuator SizingPneumatic: See tables 6, 7, and 8 Electric: See Fisher Catalog 14. Electric actuatorsmust be capable of up and down thrust limitsBonnet StylesSee table 11 Construction MaterialsValve Body and Bonnet:JCast iron (except extensionbonnet), JWCC steel, JWC9 chrome moly steel,JC5 chrome moly steel, or JCF8M (316 SST)Trims: See table 2 All Other Parts: See table 3 Approximate Shipping WeightsVALVE SIZE, NPSSHIPPING WEIGHT kglb1/2, 3/411-1/2214182739304060852-1/2346850681 09227345110150240500760 OptionsJLubricator or lubricator/isolating valve for packinglubricationJDrilled and tapped connection in extension bonnetfor leakoffJENVIRO-SEAL live-loaded packing systems(4)1.

6 PN (or other) ratings and end connections can usually be supplied; consult your Emerson sales 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 Certain bonnet bolting material selections may require a CL600 easy-e valve assembly to be derated. Contact your Emerson sales office for more For additional information, see Bulletin :061 ENVIRO-SEAL and HIGH-SEAL Packing Systems for Sliding-Stem BWE not available for NPS 8 with high temperature trim, see figure 2. Lower cage cannot be removed unless bottom flange adaptor is and YS ValvesD100031X012 Product :YDSeptember 2020 4 ENVIRO-SEAL Packing System SpecificationsApplicable Stem mm (3/8 inches), (1/2), (3/4), (1) diameter valve stemsMaximum Pressure/Temperature Limits(1)To Meet the EPA Fugitive Emission Standard of 100 PPM(2)For ENVIRO-SEAL PTFE and ENVIRO-SEAL Duplex packingsystems: full CL300 up to 232_C (450_F)For ENVIRO-SEAL Graphite ULF packing system: 104 bar(1500 psig) at 316_C (600_F)Construction MaterialsPTFE Packing SystemsPacking Ring and Lower Wiper: PTFE V-ring(3)Male and Female Adaptor Rings: Carbon-filled PTFEV-ringAnti-Extrusion Washer: Filled PTFEL antern Ring: S31600 (316 stainless steel)Spring: J17-7PH stainless steel or JN06600 Packing Box Flange: S31600 Packing Follower.

7 S31600 lined with carbon-filled PTFEP acking Box Studs: SA193-B8M Class 2 Packing Box Nuts: S31600 Graphite ULF Packing SystemsPacking Ring: Graphite ringsSpring: J17-7PH stainless steel or JN06600 Packing Box Flange: S31600 Packing Follower: S31600 lined with carbon-filled PTFEP acking Box Studs: SA193-B8M Class 2 Packing Box Nuts: S316001. 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 codeor standard The Environmental Protection Agency (EPA) has set a limit of 100 parts per million (ppm) for fugitive emissions from a valve in selected VOC (Volatile Organic Compound) In vacuum service, reversing the ENVIRO-SEAL PTFE packing rings is not 1. Construction DetailsCAGEO-RINGLOWERCAGEVALVEPLUGSEATR INGLOWERSEATRINGVALVEPLUGUPPERCAGEREVERS IBLEUPPERSEAT RINGSEALRINGBACKUPRINGSEAT RINGGASKETRETAININGRING GASKETSLOWERCAGEUPPERCAGEVALVEPLUGSEALSR ETAININGRINGUPPERSEAT RINGGASKETLOWERSEAT RINGGASKETSTANDARD YDDETAIL OF HIGH TEMPERATURE YD TRIMYSW9045-140A3551-CA1891-1W9046-1 SPRINGYD and YS ValvesD100031X012 Product :YDSeptember 2020 5 Figure 2.

8 Construction Details - NPS 8 YD-High TemperatureB1504-6E1433 UPPER CAGEGASKETSVALVE BODYLOWER CAGEPLUGF igure 3. Construction Details - NPS 8 YD58B1505-ASTEMUPPERCAGELOWERCAGEADAPTOR FLANGEPLUGCAGEADAPTORBONNETFlow DirectionsYD (Common Port on Bottom) see figure 6n Plug Down, Left-Hand Port Closed--Flow inconverging service is from right to bottom port andin diverging service is from bottom to right Plug Up, Right-Hand Port Closed--Flow inconverging service is from left to bottom port andin diverging service is from bottom to left Intermediate Plug Positions--Flow in convergingservice is from both left and right ports to bottomport, with capacities in proportion to plug in diverging service is from bottom port toboth left and right ports, with capacities split inproportion to plug (Common Port on Left) see figure 6n Plug Down, Bottom Port Closed--Flow in convergingservice is from right to left port and in divergingservice is from left to right and YS ValvesD100031X012 Product :YDSeptember 2020 6n Plug Up, Right-Hand Port Closed--Flow inconverging service is from bottom to left port andin diverging service is from left to bottom Intermediate Plug Positions--Flow in convergingservice is from both bottom and right ports to leftport, with capacities in proportion to plug 4.

9 Cutaway of ENVIRO-SEAL Bellows Seal Bonnet and Internal Shroud, Showing BellowsW5852-1 ENVIRO-SEAL, HIGH-SEALP acking SystemsENVIRO-SEAL and HIGH-SEAL packing systems offerexcellent sealing capabilities. These systems easilyinstall in your existing Valves or can be purchased withnew Valves . These systems help you seal your processto conserve valuable process fluid. The longoperational life and reliability of these systems alsoreduce your maintenance costs and applications requiring compliance withenvironmental protection regulations, the uniqueENVIRO-SEAL packing system (figure 5) and, forhazardous service, the ENVIRO-SEAL bellows sealsystem (figure 4) are offered. The emission controlpacking system keeps emission concentrations belowthe EPA 100 ppm an excellent stem seal in applications that are notenvironmentally sensitive, the HIGH-SEAL GraphiteULF packing system (figure 5) is offered.

10 TheHIGH-SEAL packing system provides excellent sealingat pressure/temperature ratings beyond ENVIRO-SEAL limits. ENVIRO-SEAL systems may also be applied forexcellent stem sealing in higher pressure/temperatureapplications not requiring EPA packing systems, available with PTFE,Graphite ULF, or Duplex packing, and the HIGH-SEALG raphite ULF packing system feature live-loading andunique packing-ring arrangements for long-term,consistent sealing YD and YS Valves may be mounted with theactuator in any position relative to the valve, thenormal position is with the valve in a horizontal run ofpipe and the actuator vertical above the valve. Theactuator should be supported in any position otherthan vertical. Orient the valve so that valve plugpositions and flow directions will conform to the flowindicator plate on the valve are shown in figure the NPS 8 high temperature construction, the bottomflange MUST be removed to access and remove the lowercage (see figure 2).