info@noorstar.pk
0092-333-9972495
24/7 Customer Support
0092-333-9972495
Contact us for Enquiry
info@noorstar.pk
24/7 Customer Support
Contact us for Enquiry
Once-through boilers require a minimum evaporator flow to cool the boiler tubes during start-up (minimum evaporator flow for spiral wound evaporators is approximately 30%).
A recirculation system recirculates water out of the water separator back into the feedwater tank or to the economiser/evaporator to ensure the minimum evaporator flow. Different layouts of the recirculation system exist, recirculation of the water from the separator back to the feed water tank and water recirculation from the separator back to the economiser inlet with a recirculation pump. In addition to the above operating modes the start-up valves can be used during boiler-filling and evaporator (air) purging.
We’re always looking for opportunities in local and export markets, so please don’t hesitate to contact us with your enquiry.
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