VF Series Butterfly Valves 2 through 20 in., Installation Instructions1Application RequirementsNote:Read the following application requirements carefully before proceeding to the installation steps pertaining to a particular valve configuration.•Ensure that the pipeline and flange faces are clean. Pipe scale, metal chips, welding slag, and welding rods can obstruct disc movement and damage the disc and seat.•The resilient seat of the valve is equipped with molded-in O-rings on the face of the seat; therefore, no gaskets are required.•Handle the valves by the extended valve neck only. Heavier valves may require a nylon sling to be used as a hoist around the valve neck and/or cast iron tee (on three-way assemblies). Never pick up a valve by the actuator, mounting bracket, or interconnecting linkage.•Most VF Series Valve Assemblies are shipped with the disc in the near-closed position (approximately 10° open). Do not remove the strapping until the valve is completely installed between the pipe flanges.•Valves equipped with a V-919X Series Rack and Pinion Spring Return Actuator require a regulated pneumatic air supply to position the disc to 10° open prior to and during installation. If no air supply is available during installation, the V-919X Series Actuator must be removed to allow for manual positioning of the disc to the proper position.InstallationInstalling Two-Way Butterfly ValvesFollow these steps to install a two-way butterfly valve: 1.Align the piping and spread the flanges apart enough to allow the valve body to be located between the flanges without actually contacting the flange surfaces (see Figure2).2.Remove the protective cardboard shields from the valve faces.3.See Figure6 and Figure7 for propervalve stem/disc orientation.4.Place the valve between the flanges, and center the valve.5.Install all of the flange bolts or cap screws and hand tighten them (see Table1).6.Slowly open the disc to the fully open position, making sure that the Outside Diameter (O.D.) of the disc does not contact the Inside Diameter (I.D.) of the adjacent pipe.7.Remove the flange spreaders and tighten the flange bolts or cap screws according to the sequence in Figure1.8.Stroke the valve fully closed and fully open while checking for proper disc clearance and proper pipe alignment (see Figure3).9.If the valve is equipped with a pneumatic piston type actuator, remove the strapping from the actuator. Move the disc to its normal position and connect the actuator clevis to the appropriate hole in the crankarm using the clevis pin provided (seeFigure4). If two actuators are provided, perform the above procedure on each actuator.Installing Three-Way Butterfly ValvesFollow these steps to install a three-way butterfly valve:1.Align the piping and spread the flanges apart enough to allow the valve bodies and tee to be located between the flanges without actually contacting the flange surfaces (see Figure2).2.Remove the protective cardboard shields from the valve faces.3.Place the valve and tee between the flanges, and center the assembly.4.Place the appropriate gasket between the bare end of the tee and the adjacent flange. Install the flange bolts to the bare end of the tee and hand tighten them. Check the alignment again to insure proper centering of the assembly between the adjacent pipe flanges.5.Slowly open the disc of the valve on the run side of the tee (see Figure5), making sure that the disc does not contact the I.D. of the adjacent pipe.VF Series Butterfly Valves 2 through 20 in.,Two-Way and Three-WayInstallation InstructionsCode No. LIT-977205XIssued August 24, 2009Supersedes January, 1990Two-Way and Three-Way Installation Instructions26.Remove the flange spreaders on the run side of the tee and hand tighten the flange bolts or cap screws (see Table1).7.Repeat Step5 and Step6 on the branch side of the tee.8.If the valve is equipped with a pneumatic piston type actuator, remove the strapping from the actuator. Position the disc of the run valve to its normal position and connect the actuator clevis to the appropriate hole in the crankarm using the clevis pin provided (see Figure4). If two actuators are provided, perform the above procedure on each actuator.9.Position the disc of the branch valve to its normal position. See Figure5 for the proper orientation of the crankarm for the branch valve.10.Unstrap the interconnecting linkage rod and secure the loose end of the rod to the appropriate crankarm.11.Slowly stroke the fully linked three-way assembly two complete cycles while checking for proper disc clearance and pipe alignment (see Figure3). Tighten all flange bolts and cap screws securely according to the sequence in Figure1. MountingUse the figures in this section, along with the installation instructions, to guide your installation of the two-way and three-way butterfly valves. Table 1: Required Fasteners for Valve SizesRegular Hex Head Screws with National Course ThreadsValve Size (in.)22-1/234568101214161820Diameter5/85/85/85/83/43/43/47/87/8111-1/81-1/8Length1-1/21-1/21-3/41-3/41-3/422-1/42-1/42-1/22-3/43-1/43-1/24Number Required4448888121212161620Heavy Hex Bolts and NutsDiameter5/83/43/43/47/87/8Length555666-1/2None RequiredNumber Required444488Figure 1: Bolt Tightening Sequence1235786FIG: bolt_tight_seqTwo-Way and Three-Way Installation Instructions 3Figure 2: Flange and Disc PositionWRONGPipe not spread, discopened beyond valvebody face; Results: Discedge damaged when ithits pipe flange.RIGHTPipe spread and aligned,disc rotated; Results: Noundesirable beginning seating/unseating torque,disc edge protected.FIG: flng_dcs_posFigure 3: Pipe Alignment and Disc OrientationWRONGPiping misalignment; Results:Disc O.D. strikes pipe I.D.causing disc edge damage,increased torque, and leakage.Seat face o-rings seal improperly without engagement.RIGHTPiping aligned properly whenbolts tightened, disc in full openposition; Results: disc clears adjacent pipe I.D., seat face seals properly, and no excessiveinitial torque.FIG: pipe_algn_dsc_orientTwo-Way and Three-Way Installation Instructions4Figure 4: Crankarm Hole IdentificationFOR D-3153FOR D-3244FOR D-32465.25”3.5”2.625”FIG: crnkarm_hole_idFigure 5: Proper Crankarm OrientationTwo-Way and Three-Way Installation Instructions 5Figure 6: Correct Valve Stem/Disc Orientation Examples (1)STEM (VERTICAL)STEM (HORIZONTAL)Water with SedimentValve Stem (Horizontal)Valve Stem (Vertical)Centrifugal Pump(Pump Shaft Horizontal)Centrifugal Pump(Pump Shaft Horizontal)Centrifugal Pump (Pump Shaft Horizontal)Valve Stem (Horizontal)Valve Stem (Vertical)Centrifugal Pump(Pump Shaft Vertical)Centrifugal Pump(Pump Shaft Vertical)SuctionSuctionCentrifugal Pump (Pump Shaft Vertical)SuctionIncorrect InstallationAxial Pump (Pump Shaft Vertical)Valve Stem (Vertical)Valve Stem (Horizontal)SuctionCorrect InstallationIncorrect InstallationCorrect InstallationIncorrect InstallationCorrect InstallationIncorrect InstallationCorrect InstallationFIG: vlv_stm_dsc_orient_exmpl_1Note: For Water with Sediment,always position the valve with thevalve stem in a horizontal plane.Two-Way and Three-Way Installation Instructions6Figure 7: Proper Valve Stem/Disc Orientation Examples (2)Stem Vertical Installation (Elbow)Incorrect InstallationCorrect InstallationIncorrect InstallationCorrect InstallationValve Stem (Horizontal)Valve Stem (Vertical)Valve Stem (Horizontal)Valve Stem (Vertical)Incorrect InstallationCorrect InstallationStem Vertical Installation (Reduced Volume)Valve Stem (Horizontal)Valve Stem (Vertical)Incorrect InstallationCorrect InstallationStem Vertical Installation (Constriction)FIG: vlv_stm_dsc_orient_exmpl_2Published in U.S.A.www.johnsoncontrols.comTwo-Way and Three-Way Installation Instructions 7Metasys® and Johnson Controls® are registered trademarks of Johnson Controls, Inc.All other marks herein are the marks of their respective owners. © 2009 Johnson Controls, Inc.Building Efficiency507 E. Michigan Street, Milwaukee, WI 53202Repair InformationIf the VF Series Two-Way or Three-Way Butterfly Valve fails to operate within its specifications, replace the unit. For a replacement butterfly valve, contact the nearest Johnson Controls® representative.Next >