Emerson Fisher V250 Instruction Manual

2015-03-30

: Emerson Emerson-Fisher-V250-Instruction-Manual-680475 emerson-fisher-v250-instruction-manual-680475 emerson pdf

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www.Fisher.comFisherrV250 Ball ValveContentsIntroduction 1.................................Scope of Manual 1.............................Description 1.................................Installation 3..................................Maintenance 6.................................Replacing the Follower Shaft Seal 6...............Replacing the Drive Shaft Seal 7.................Replacing Ball Seal or Flow Ring 8................Removal 8................................Installation of Single or Dual Ball Seal 10.......Installation of Flow Ring 10..................Installing Live-Loaded PTFE Packing 11............Replacing Drive Shaft, Follower Shaft Ball,Bushings, and Valve Outlet Gasket 12..........Disassembly 12............................Assembly 15..............................Actuator Mounting 19...........................Travel Adjustment 19..........................Parts Ordering 19...............................Parts List 23...................................Figure 1. Fisher V250 Ball Valve with 1061 ActuatorW3698IntroductionScope of ManualThis instruction manual provides installation, maintenance, and parts ordering information for NPS 4 through 24Fisher V250 valves (figure 1) that mate with ASME flanges. Other instruction manuals provide information coveringthe actuator and accessories.Do not install, operate, or maintain a V250 valve without being fully trained and qualified in valve, actuator, andaccessory installation, operation, and maintenance. To avoid personal injury or property damage, it is important tocarefully read, understand, and follow all the contents of this manual, including all safety cautions and warnings. If youhave any questions about these instructions, contact your Emerson Process Management sales office beforeproceeding.DescriptionThe V250 valve is a flangeless rotary control valve used for high pressure, throttling or on-off control of liquid or gasapplications (see figure 1). These valves operate on a rotary motion input through a splined valve-shaft/actuator-shaftconnection for use with power or manual handwheel actuators. The single seal, dual seal, and flow ring constructionsare covered in this instruction manual.Instruction ManualD100422X012V250 ValveSeptember 2013
Instruction ManualD100422X012V250 ValveSeptember 20132Table 1. SpecificationsValve Sizes and End Connection StylesNPS 4 through 24 flangelessvalvesretainedbylineflange bolts and designed to fit between ASMEraised-face or ring-type joint flanges. See table 2 forvalves that install between ASME flangesMaximum Inlet Pressure(1)Consistent with applicable pressure-temperatureratings listed in table 2Maximum Allowable Shutoff Pressure Drop(1,2,3)Single-Seal and Dual-Seal Construction:155 bar (2250 psi) at 38_C (100_F) and 103 bar (1500psi) at 82_C(180_F) except where further limited bythe pressure-temperature rating of the valve bodyFlow Ring Construction: Limited by thepressure-temperature rating of the valve bodySeal Material Temperature Capability(1)Single-Seal and Dual-Seal Construction:-46 to 82_C(-50to180_F) with LCC or stainless steelvalve bodiesFlow Ring Construction with Nitrile O-Rings: -46 to93_C(-50to200_F) with LCC steel and stainless steelvalve bodiesFlow Ring Construction with Fluorocarbon O-Rings:-46 to 204_C(-50to400_F) with LCC steel andstainless steel valve bodiesFlow CharacteristicModified equal percentageFlow DirectionForward Flow: Single seal construction is standard forforward flow (see figure 4)Bidirectional Flow: Flow ring construction can be usedforeitherforwardorreverseflow(see figure 5)Bidirectional Shutoff: Dual seal construction isrequired to provide shutoff for bidirectional flow (seefigure 12)Shutoff ClassificationSingle Seal and Dual Seal Constructions: 0.0001% ofmaximum valve capacity (less than 1% of Class IV,ANSI/FCI 70-2)Flow Ring Construction: 1% of maximum valvecapacityMaximum Ball Rotation90 degreesActuator MountingRight-hand or left-hand mounted as viewed from thevalve body inlet for forward flowApproximate WeightsSee table 31. The pressure/temperature limits in this manual and any applicable standard or code limitation for valve should not be exceeded.2. Maximum allowable shutoff pressure drops are further limited for the following constructions. The NPS 12 with S20910 drive shaft is limited to 128 bar (1862 psi) from -46 to 59_C(-50 to 139_F) and to 103 bar (1490 psi) at 93_C (200_F). The NPS 16 with 17-4PH steel, with 2-1/2 inch splined drive shaft is limited to 69 bar (1000 psi), and with the S20910, 2-1/2 inchsplined drive shaft is limited to 55 bar (795 psi) at all service temperatures. The NPS 24 with S20910 drive shaft is limited to 92 bar (1336 psi) at all service temperatures.3. NPS 20 CL900 and NPS 24 CL900 flow ring is limited to 1500 psi.Table 2. Pressure Rating and Flange CompatibilityValve Size, NPS Inlet Pressure Capability ASME Flange Compatibility4Consistent with CL600 or 900 (ASME B16.34) CL600 or 900 raised face or ring-type joint flange (ASME B16.5)68101216 Consistent with CL600 (ASME B16.34) CL600 raised face or ring-type joint flange (ASME B16.5)20 Consistent with CL600 or 900 (ASME B16.34) CL600 or 900 raised face or ring-type joint flange (ASME B16.5)24

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