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1 Technical data sheet R3 / R3G Change-over ball valve, 3-way, with internal thread for closed cold and warm water systems for switching functions on the water side and 2-point controls in air-handling and heating systems air bubble-tight Overview of types Technical data Type k vs [m 3 /h] [inches] p s [kpa] R ¹/₂ 4140 R ³/₄ 4140 R R ¹/₄ 4140 R ¹/₄ 2760 R ¹/₂ 2760 R340G ¹/₂ 2760 R R350G Functional data edia Cold and warm water, Water with max 50% volume of glycol edia temperature +5 C+110 C 1) (lower and higher temperatures on request) Rated pressure p s see «Overview of types» eakage rate A, air bubble-tight (EN ) Pipe connectors internal thread according to ISO 7/1 Differential pressure Δp max Closing pressure Δp s 350 kpa (200 kpa for low-noise operation) 500 kpa Angle of rotation 90 (operating range ) Installation position Standing to lying (in relation to the stem) aintenance aintenance-free aterials Fitting Forged brass, body nickel-plated Valve cone and stem chrome-nickel plated brass Stem seal O-Ring, EPD all seat PTFE, O-ring Viton Dimensions / weights See «Dimensions and weights» on page 3 otorising See complete range of water solutions 1) The allowed media temperature can be limited, depending on the type of actuator The correct values can be found in the corresponding actuator data sheets Safety notes! The valve has been designed for use in stationary heating, ventilation and air conditioning systems and is not allowed to be used outside the specified field of application, especially in aircraft or in any other airborne means of transport It may only be installed by suitably trained personnel Any legal regulations or regulations issued by authorities must be observed during assembly The ball valve does not contain any parts that can be replaced or repaired by the user The rotary valve may not be disposed of as household refuse All locally valid regulations and requirements must be observed When determining the flow rate characteristic of final controlling elements, the recognised directives must be observed wwwbelimocom T5-R3/R3G en v Subject to changes 1 / 3
2 R3 / R3G Change-over ball valve, 3-way, with internal thread Product features ode of operation The change-over ball valve is operated by a rotary actuator The rotary actuator is controlled by an open-close signal Installation instructions Recommended installation positions Water quality requirements aintenance The ball valve can be installed standing to lying The ball valve may not be installed in a hanging position ie with the stem pointing downwards The water quality requirements specified in VDI 2035 must be adhered to all valves are sensitive control devices In order to ensure a long service life, it is advisable to fit a strainer all valves and rotary actuators are maintenance-free efore any kind of service work is carried out on actuator sets of this type, it is essential to isolate the rotary actuator from the power supply (by unplugging the power lead) Any pumps in the part of the piping system concerned must also be switched off and the appropriate isolating fittings closed (allow everything to cool down first if necessary and reduce the pressure in the system to atmospheric) The system must not be returned to service until the ball valve and the rotary actuator have been properly reassembled in accordance with the instructions and the pipework has been refilled in the proper manner Flow direction Please also ensure that the ball is in the correct position (marking on the stem) A A A = 100% A = 0% A A A = 100% A = 0% Accessories echanical accessories Description Stem heating ZR24-1 (except for R3G) Pipe connector ZR23 2 / 3 T5-R3/R3G en v Subject to changes wwwbelimocom
3 R3 / R3G Change-over ball valve, 3-way, with internal thread Dimensions and weights Dimensional drawings min Y min X H 3) 42 H [inches] 1 1) X 2) Y 2) Weight [kg] ¹/₂ ³/₄ ¹/₄ ¹/₄ (R340) ¹/₂ (R340G) ¹/₂ (R350) (R350G) ) aximum screw-in depth 2) inimum distance with respect to the valve centre 3) The actuator dimensions can be found on the respective actuator data sheet 1 Further documentations Complete overview «The complete range of water solutions» Data sheets for actuators Installation instructions for ball valves resp actuators Notes for project planning (hydraulic characteristic curves and circuits, installation regulations, commissioning, maintenance etc) wwwbelimocom T5-R3/R3G en v Subject to changes 3 / 3
4 C R3 R3G min X TR TRF R RF NR SR SRF min Y H max 1 mm TR / TRF R / RF NR SR SRF (ARF) mm H 1 X Y X Y X Y X Y X Y R ¹/₂ R ³/₄ R R ¹/₄ R ¹/₄ R ¹/₂ R340G 40 1¹/₂ R R350G
5 A A A t p max +5 C +110 C <350 kpa A p s 4140 kpa 2760 kpa R315 R332 R320 R340 / R340G R325 R350 / R350G R330 A = 100% A = 100% A A A = 100% A = 0% A A A = 100% A = 0%
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