INSTRUCTION MANUAL3-Way Diverting Ball Valves3-Way Diverting Ball ValvesThree-way valve with chrome plated brass ball and nickelplated stem and NPT female endsTechnical DataServicechilled or hot water, 60% glycolFlow characteristicmodiﬁed equal percentageMedia temp range0°F to 250°F [-18°C to 120°C]Maximum differentialpressure (ΔP)50 psi maxLeakageANSI Class VIFlow PatternThree-way Diverting Ball ValveABABABABB – A 100%B – A 0%B – AB 0%B – A 100%AABBAABB– A 100% – AB 100%Operation/InstallationEnsure that the balls are in the correct position (marking on the stem).OUTLETThree-way DivertingOUTLETNLETAABABB – A = 0%B – AB = 100%B – A = 100%B – AB = 0%ABABNormally Closed Actuator71543-00001.B3-Way Diverting Ball ValvesInstruction ManualInstallationInspect shipping package, valve, linkage, and actuator for physical damage. If shipping damage has occurred notify appropriate carrier. Do not install..Install valve with the proper ports as inlets and outlets. See drawings on page 1.Check that inlet and outlet of 2-way valves are correct; check that the “A”, “B”, and “AB” ports of three-way valves are piped correctly. Check tag marking forcorrect ﬂ ow direction.3.Blow out all piping and thoroughly clean before valve installation.4.Clean male pipe threads with wire brush and rag. If threads have been damaged or exposed to weather, running a tap or die over the threads may straighten them.Clean pipes, threads, and valve threads before installation; check for any foreignmaterial that can become lodged in trim components. Strainers should be cleanedafter initial startup.5. Pipe sealing compound should be applied sparingly after cleaning and may not beapplied to the two lead threads of a screwed pipe, which are innermost inside the valve. Sealing compound is to be placed on male threads only. The purpose is tolubricate the pipes when tightening.6.Valve must be installed with the stem towards the vertical, not below horizontal.Start the connection by turning the valve or pipe by hand as far as possible. Be certain the threads mate by the “feel” of the connection.8.Use wrenches to tighten the valve to the pipe. Do not over tighten or strip the threads. Two wrenches are necessary to avoid damaging the valve.9. Two-way valve Normally Open or Closed conﬁgurations must be veriﬁed by examining both the mechanical drawings and the valve and actuator. See details on page 1.10.Three-way valve Normally Open or Closed conﬁgurations for the Control Port and the Bypass Port must be veriﬁed by examining both the mechanical drawings and the valve and actuator. See details on page 1.Warning! Valve should not be used for combustible gas applications. Gas leaks and explosions may result. Do not install in systems, which exceed the ratings of the valve. Avoid installations where valve may be exposed to excessive moisture, corrosivefumes, vibration, high ambient temperatures, elements, or high trafﬁc areas withpotential for mechanical damage.• Valve assembly location must be within ambient ratings of actuator. If temperature isbelow -22°F a heater is required.• The valve assembly will require heat shielding, thermal isolation, or cooling if combined effect of medium and ambient temperatures – conduction, convection, and radiation – is above 122°F for prolonged time periods at the actuator.• Following standard procedure, a strainer should be installed before the coil and valve or in another appropriate place in the system.• Visual access must be provided. Assembly must be accessible for routine schedule service. Contractor should provide unions for removal from line and isolation valves. Avoid excessive stresses. Mechanical support must be provided where reducers have been used and the piping system may have less structural integrity than full pipe sizes. Sufﬁcient upstream and downstream piping runs must be provided to ensure proper valve capacity and ﬂ ow response. Five diameters in each direction are recommended.Life span of valve stems and O-rings is dependent on maintaining non-damaging conditions. Poor water treatment or ﬁltration, corrosion, scale, other particulate canresult in damage to trim components. A water treatment specialist should be consulted. Normal thread engagement between male pipe thread and valve body should be observed. Pipe run that is in too far will damage the valve.The ﬂange allows the actuator to be either parallel or perpendicular to the pipe; thereare four orientations possible.If ﬁeld installing a spring return actuator, disconnect power and allow actuator to springclosed. Flip actuator over if necessary to achieve proper rotation direction. DO NOT USE THE REVERSING SWITCH TO DO THIS.Three-way Valves MountingThe B port is always the common inlet port. The A and AB ports are outlets.Do not force. Do not use the actuator to turn the pipe or the stem. Do not use any toothed tool such as pliers, which may damage the stem.• Check that the actuator rotates so that the valve seats for close off and also rotates open to achieve full Cv. Use the gear release or the AF crank to verify. ForLF or NF models apply power and control signal if necessary.• Install and tighten the hold down screw not more than 1/2 turn beyond the point where resistance is felt.MountingThe valves can be mounted in any position, except stem below horizontal.90° 90° &RLO5HWXUQ7KUHH:D0L[LQ\9DOYH3LJ'LDJUSLQQSXW,2XWSX$%$%6XSSO\&RLO5HWXUQ7KUHH:D\H'LYWLQJ9DOYH3L'LDJUSLQJSXW2XWS,QXWV$%$%6XSSO\Incorrect PipingWARNING! Do Not Pipe in this manner! Note Valve Porting! Flow is not possible from A to AB. If B port is not piped as the common port, the valve must be re-piped. These valves are intended for closed loop systems. Do notinstall in an open loop system or in an application that is open to atmospheric pressure.05/13 - Subject to change. © Belimo Aircontrols (USA), Inc.Next >