Recently I wrote in this column that every component in a controls circuit is a power supply, a switch or a load — no other possibilities. And that means that every control, hydronic or otherwise, is ...
Subsea oil and gas production subjects industrial instrumentation to some of the harshest operating conditions. Valves — particularly those used for isolation and flow control — bear the brunt of ...
Description: This zone valve is for use in hydronic heating and other HVAC systems, such as those with fan coils and air handlers. The mechanical valve allows one actuator to accept input voltages ...
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