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CONTROL CURVE Flow (%) 100 90 80 70 60 50 40 30 20 10 0 0 1 2 3 4 5 6 7 8 9 10 SM Linear flow Control signal (V) SM Equal% GENERAL SPECIFICATIONS 1. PRESSURE INDEPENDENT DYNAMIC CONTROL VALVES - FLOWCON SM 1.1. Contractor shall install pressure independent dynamic control valves where indicated in drawings. 1.2. Valve shall be an electronic, dynamic, modulating, 2-way pressure independent control device. 1.3. Valve shall accurately control flow, independent of system pressure fluctuation. 2. VALVE ACTUATOR 2.1. Valve-actuator coupling shall be snap coupling for fast mounting and de-mounting. 2.2. Actuator housing shall be rated to IP54 including upside-down mounting. 2.3. Actuator shall be driven by a 24V AC/DC motor and shall accept 0(2)-10V, 0(4)-20mA, 3-point floating or 2-position control signal. 2.4. Actuator control mode shall be linear flow or linear rotation. 2.5. Actuator shall be capable of providing linear feedback signal to the control system. Feedback signal shall be selectable to Auto (equal to input signal), 4-20mA, 0-10V DC or 2-10V DC. 2.6. Automatic calibration of valve position shall be standard. 2.7. Actuator shall include buttons for external programming of all settings. 2.8. Actuator display showing current valve flow, maximum valve flow, input signal, feedback signal, opera- tional direction and control mode shall be standard. 2.9. Optional failsafe versions shall be available. Failsafe versions shall be able to operate valve to either open (max. setting) or closed position from any position in case of power failure. 2.10. Optional BACnet versions shall be available. BACnet versions shall provide remote setting and control of actuator. 3. VALVE HOUSING 3.1. Housing shall consist of forged brass ASTM CuZn40Pb2 rated at no less than 2500 kPa (360 psi) static pressure and +120°C (+248°F). 3.2. Housing shall be permanently marked to show direction of flow. 3.3. Housing shall be double union end construction with a range of pipe connections available for appropriate pipe size. 3.4. Dual pressure/temperature test plugs for verifying accuracy of flow performance shall be available for all valve sizes. 4. FLOW REGULATOR / AUTOMATIC BALANCING UNIT 4.1. Maximum flow setting shall be adjustable to minimum 51 different settings within the range of the valve size. 4.2. Flow regulation unit shall be manufactured of stainless steel and hydrogenated acrylonitrile-butadiene- rubber and shall be capable of controlling flow within ±5% of controlled flow rate of ±2% of maximum flow rate. 4.3. Flow regulation unit shall be accessible for change-out or maintenance. Tech note · FlowCon SM 15-40 mm / 1/2”-1 1/2” · march 2024 · www.flowcon.com Page 6 of 7
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APPLICATION AND SCHEMATIC EXAMPLE UPDATES For latest updates please see www.flowcon.com FlowCon International can accept no responsibility for possible errors in any printed material. All rights reserved. Tech note · FlowCon SM 15-40 mm / 1/2”-1 1/2” · march 2024 · www.flowcon.com Page 7 of 7
