Global Valves - BELIMO - #12

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ENG-93001-93621-08.04-1M • Printed in Switzerland • ZSD • Subject to technical modifications BC 12 H4..B globe valves, 2-way, with external thread Applications • Water-side control of air handling units • Water-side control in heating systems Mode of operation The globe valve is operated by a NV series linear actuator. The linear actuators are controlled by a standard modulating or 3-point control system and move the cone of the valve, the throttling device, to the opening position dictated by the control signal. Product features Equal-percentage characteristic Produced by the profiling of the valve cone. Manual operation with NV actuator Using a hexagonal key to turn the actuator. • For installation instructions, refer to pages 30/31 • For closing pressure / differential pressure, refer to page 8 • Sizing diagram for globe valves, refer to page 9 • The information provided on pages 33/34 regarding operation, installation, project design, commissioning and maintenance must be strictly observed. • For pipe connectors as accessories, refer to page 6 2-way globe valves with external thread DN 15...50 For the modulating control of cold and warm water Flow media Cold and warm water, water with max. 50% volume of glycol Temperature of medium (–10°C) +5°C...+120°C (–10°C on request) Rated pressure ps 1600 kPa (PN 16) Flow characteristic Control path A–AB: equal-percentage (to VDI/VDE 2173) n(ep) = 3, optimized in opening range Rangeability DN 15 Sv > 50 DN 20...50 Sv > 100 Leakage rate Control path A–AB: max. 0.05 % of kvs value Pipe connection External thread to ISO 228 Differential pressure Äpmax 400 kPa Closing pressure Äps See table on page 8 Stroke 15 mm Valve closing point Up (Ä) Installation position Vertical to horizontal Maintenance Maintenance-free Materials Fitting Valve cone Valve seat Valve stem Stem gland seal Red casting brass Rg5 Brass Red casting brass Rg5 Stainless steel EPDM O-ring Technical data H4..B Selection: H4..B kVS [m3/h] DN [mm] 2-way Suitable linear actuator, 3-point Suitable linear actuator, modulating DC 0 ... 10 V Suitable linear actuator, modulating DC 0 ... 10 V with emergency control function 1) Recommended for DN 32 – DN 50 and high closing pressures 2) Valve closed when deenergized 3) Valve open when deenergized Dimensions: H4..B DN Stroke Dimensions [mm] External thread Weight [mm] [mm] L B H G kg 15 15 80 65 46 G 1 1/8” 1.2 20 15 90 65 46 G 1 1/4” 1.3 25 15 110 66 52 G 1 1/2” 1.6 32 15 120 67 56 G 2” 2.2 40 15 130 72 65 G 2 1/4” 2.8 50 15 150 75 65 G 2 3/4” 3.9 A 2-way valve can be converted to a 3-way valve by removing the blind plug in port B. B H G DN L A AB B 0.63 15 H411B NV24-3 AC / DC 24 V NV230-3 AC 230 V NV24-MFT AC / DC 24 V NVY24-MFT AC / DC 24 V NVG24-MFT 1) AC / DC 24 V NVF24-MFT AC / DC 24 V Emergency control function, pulling 2) NVF24-MFT-E AC / DC 24 V Emergency control function, pushing 3) 1 15 H412B 1.6 15 H413B 2.5 15 H414B 4 15 H415B 6.3 20 H420B 10 25 H425B 16 32 H432B 25 40 H440B 40 50 H450B