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Control ball valves, male screw thread / external thread  2-way   The product may differ from the illustration R439 2-way control ball valve, PN16 external thread G 2 1/4", DN 40, kvs 25 Housing nickel-plated, hot-pressed brass Valve disk stainless steel Seal PTFE / EPDM O-ring Characterizing disk TEFZEL Temperature of medium max. 100 °C Characteristic A-AB equal percentage Leakage rate A-AB air bubble-tight spindle stainless steel Qty: Select suitable actuators PDF Data Sheets Accessories VDI 3805 Download CAD Files CE Declaration of Conformity Select suitable actuators for R439: Standard Without emergency control: 3-point or Open/Close, 24 V 3-point or Open/Close, 230 V Modulating, multifunctional, fast running With emergency control: Open/Close, 1-wire control, 24 V Open/Close, 1-wire control, 230 V 3-point or Open/Close, 230 V Modulating Very fast-running Open/Close, 24 V Modulating RobustLine 3-point or Open/Close, 24 V 3-point or Open/Close, 230 V Modulating Communicative / Bus Without emergency control: MP-Bus, LonWorks®, Modbus With emergency control: MP-Bus, LonWorks®, EIB/Konnex (MP) PDF Data Sheets for R439 Send PDFs for other items Valve: Technical data, dimensions, mounting (PDF - 872 kb) Send Data Sheet Notes for project planning (PDF - 178 kb) Send Data Sheet The complete range of water solutions (PDF - 8,912 kb) Send Data Sheet Accessories for R439 ZR4540 Pipe connector for control ball valve DN 1 Rp 1 1/1" Safety notes Copyright (c)2013 BELIMO Automation AG. All rights reserved. Contact