Belimo Americas, a manufacturer of damper actuators and control valves used in commercial HVAC systems, has recently released the new ANSI 250 pressure rating Energy Valve and Electronic Pressure Independent Valve (ePIV), designed for high pressure applications. The assemblies utilize an electromagnetic flow meter in line with a control valve to obtain close-off ratings from 135 – 310 psi, depending on valve size and actuator force. Actuators respond to a modulating control signal and are available with non-spring return or electronic fail-safe functionality.
The Energy Valve and ePIV both provide true flow with the built-in electronic flow meter and dynamic balancing providing pressure independent operation by maintaining constant flow regardless of differential pressure fluctuations. The Energy Valve also provides a solution to low Delta T syndrome with its Delta T Manager. Power Control is another feature of the Energy Valve, which allows setting the power output to a specific value in a linear response making coil control both pressure and temperature independent.