ACVATIX™ 2-port and 3-port control ball valves, PN 40, with internally threaded connection VAI61.., VBI61.. For use in heating, ventilation, and air conditioning plants as control or shutoff valve. In closed circuits. • • • • • • • Ball valve body made of brass, UNS C35330 (DZR) DN 15...50 kvs 0,25...63 m3/h Connections with internal threading Rp per ISO 7-1 Rotational angle 90° Can be used with electromotorized rotary actuators GQD..9A, GMA..9E.. with spring return and GSD161.9A, GDB..9E.., GLD161.9E..
Features • Moderately price: Optimized flow rates mean smaller ball valves can be selected. Low torque means you can combine them with small, less expensive rotary actuators. High life expectancy: Maintenance-free construction, also thanks to low friction stem and polished ball made of chrome-plated DZR brass. Simple mounting: The brackets, premounted on the actuators, means you can mount them on the ball valves without tools.
Sizing Flow diagram: --- Δpmax for VAI61.. and VBI61..
211D03a Ball valve characteristic curve Through-port Flow rate kv / kvs 1 0,8 0,6 0,4 0,2 0 0 20 40 60 80 90° Rotational angle Flow characteristics 0…100 % -> A ─ AB equal percentage, ngl = 3.9 per VDI / VDE 2173 4211D02a 3-port Flow rate kv / kvs 1 0,8 0,6 0,4 0,2 0 0 20 40 60 80 90° Rotational angle Through-port 0…100 % -> A ─ AB equal percentage, ngl = 3.
Cavitation Cavitation increases wear and tear of the ball and seat and results in unwanted noise. Cavitation can be prevented by not exceeding the differential pressures as per the flow diagram and maintaining the static pressures depicted below.
Operating pressure and operating temperature Liquids: Operating pressure [bar] Operating temperature [°C] Operating pressure and medium temperature per IS0 7005 (Observe all local and applicable laws).
Type summary Type Control ball valve 2-port Product no. DN kvs Control ball valve 3-port Stock number Product no. [m /h] Stock number VAI61.15-0,25 S55230-V220 - - VAI61.15-0,4 S55230-V221 - - 0,4 VAI61.15-0,63 S55230-V222 - - 0,63 VAI61.15-1 BPZ:VAI61.15-1 - - 1,0 VAI61.15-1.6 BPZ:VAI61.15-1.6 VBI61.15-1.6 BPZ:VBI61.15-1.6 1,6 VAI61.15-2.5 BPZ:VAI61.15-2.5 VBI61.15-2.5 BPZ:VBI61.15-2.5 2,5 VAI61.15-4 BPZ:VAI61.15-4 BPZ:VBI61.15-4 4,0 VAI61.15-6.3 BPZ:VAI61.15-6.
Accessories Temperature adapter ALJ100 DANGER Hazard to life for the combination ALJ100 with GMA and ASK77.2! Combining temperature adapter ALJ100 with ASK77.2 and rotary actuator GMA. operated at AC 230 V ~ or rotary actuator GMA with auxiliary switch voltage AC 230 V ~ can result in life-threatening shocks if used inappropriate. ● Never combine rotary actuator GMA operated at voltage of AC 230 V ~ with temperature adapter ALJ100.
Equipment combinations Type Rotary actuators GQD..9A Δpmax Δps GSD161.9A Δpmax Δps GDB..9E.. Δpmax Δps GMA..9E.. Δpmax Ball valve Δps GLD161.9E.. Δpmax Δps GLB..9E.. Δpmax Δps GDD161.9E Δpmax Δps 350 1400 ─ ─ [kPa] VAI61.15.. VAI61.20.. 350 1400 350 1400 350 1400 1400 1400 1000 1000 VAI61.25.. VAI61.32-10 VAI61.32-16 VAI61.32-25 350 VAI61.40-16 VAI61.40-25 ─ ─ ─ ─ ─ ─ 350 1000 350 800 800 800 600 600 600 VAI61.40-40 VAI61.50-25 VAI61.50-40 VAI61.50-63 VBI61.
Overview of rotary actuators for ball valves Type 1) Product no. Operating voltage Stock number 2) BPZ:GQD131.9A GQD161.9A 2) BPZ:GQD161.9A GSD161.9A 2) S55499-D232 2) GDB341.9E 2) GQD131.9A GDB141.9E GDB161.9E 2) 2) GDB161.
Applications with auxiliary functions A standard actuator with corresponding functionality can be used if a ball valve application requires a rotary actuator with auxiliary functions (e.g. auxiliary switch or potentiometer). In this case, mounting kit ASK77.x is required in addition to the rotary actuator. Follow the mounting instructions when mounting. Rotary actuator Options Order text: Mounting kit GMA..1E Potentiometer, auxiliary switch ASK77.2 Accessory Kit BV for GMAxx1.
Engineering We recommend installing the ball valve with spring return since temperatures are lower on heating plants which increases the lifespan of the sealing gland on the stem. Ensure there is no cavitation (see Section Technical design [➙ 2]). A filter must be installed upstream of the ball valve to increase functional safety. We recommend using temperature adapter ALJ100 in locations exposed to condensation to protect the actuator.
Pipe connection Avoid leakage: • Install fittings as per ISO 7-1. Ball valves (internal threading) = "Rp"; Piping (external threading) = "R". • Do not use too much hemp or PTFE tape. • Do not tighten pipe threading to the very end. • Place the pliers/wrench on the ball valve union nut that is closer to the pipe to be tightened or loosened. Flow direction Make sure that the valve is mounted in the proper flow direction. A symbol is applied to the ball valve body: VAI61.. Ball valve VBI61..
Technical data Functional data VAI61.. VBI61.. PN class PN 40 per ISO 7268 Operating pressure Per ISO 7005 within the permissible media temperature as per Section Technical design [➙ 2] Ball valve characteristic curve Through-port: 0…100 % Equal percentage, ngl = 3.
4211M01 Dimensions DN = Nominal size H = Total height of actuator plus minimum mounting distance to wall or ceiling, for mounting, connection, operation, maintenance, etc. H1 = Dimension from the pipe to the center to install actuator (upper edge) Type DN B C D Rp [mm] VAI61.15-0.25 / VAI61.15-0.4 / VAI61.15-0.63 L1 L2 [inch] H1 H2 [mm] 1) 42 Rp ½ 30.8 61.6 24.2 33.7 15 26 31 VAI61.15-1 / VAI61.15-1.6 VAI61.15-2.5 VAI61.15-4 VAI61.15-6.3 VAI61.
4211M02 DN = Nominal size H = Total height of actuator plus minimum mounting distance to wall or ceiling, for mounting, connection, operation, maintenance, etc. H1 = Dimension from the pipe to the center to install actuator (upper edge) Type DN B C C1 D [mm] VBI61.15.. 15 26 VBI61.15-6.3 Rp L1 [inch] 34 48.5 1) 42 34 49.5 1) 42 Rp ½ H1 H2 24.2 33.7 27.6 37.6 [mm] 33,5 67 VBI61.20.. 20 31 36.7 52 42 Rp ¾ 36 72 27.6 37.6 VBI61.25.. 25 39 44.8 64.
Temperature adapter (optional) 70 162.8 42 64 23.
Revision numbers Type Valid from rev. no. Shutoff ball valve VAI61.. Valid from rev. no. Changeover ball valve VBI61.. 2-port 3-port VAI61.15-0.25 ..A - - VAI61.15-0.4 ..A - - VAI61.15-0.63 ..A - - VAI61.15-1 ..A - - VAI61.15-1.6 ..A VBI61.15-1.6 ..A VAI61.15-2.5 ..A VBI61.15-2.5 ..A VAI61.15-4 ..A VBI61.15-4 ..A VAI61.15-6.3 ..A VBI61.15-6.3 ..A VAI61.15-10 ..A - VAI61.20-4 ..A VBI61.20-4 ..A VAI61.20-6.3 ..A VBI61.20-6.3 ..A VAI61.20-10 ..A VBI61.
