Static pressure across resistance such as hood, fitting such as elbows and air cleaning device need to be monitored to be within the maximum range so that the system flow rate will be within its peak performance / baseline measurement. Increase of differential pressure about the set limit will increase the overall system static pressure which is inverse to system flow rate. The differential pressure system is available in both analog and digital (transmitters with display and SCADA interphase). We design and establish differential pressure monitoring and control system by establishing the performance monitoring to meet the acceptable range of operation.

The design basis of ventilation is purely based on flow rate of the system. As such the flow rate must be monitored as apart of system’s performance monitoring. The need for preventive maintenance can be monitored via the reduction in flow rate as the resistance across the system rises. Permanently fixed S type pitot tube on a laminar flow plane can be hooked up unto a pressure transmitter to provide the velocity at that point. Multiplying the cross section with the introduction of actual air density can provide an accurate air flow rate monitoring system as a stand alone measurement with display or to be interphase into SCADA system. We provide total solution in monitoring system flow rate at any point of the ventilation system.

A duty point of a ventilation system fan will be based on flow rate and system static pressure. The fan will rotate at its rated speed to meet the demand of the duty point. Fan drive system failure such as bearing, belt, pulley, shaft, impeller and etc will affect fan speed. The drop it fan speed will diminish the adequacy of the system as the duty point demand cant be met. We establish thorough inspection and service of the fan speed to ensure the operation meets the duty point.