The QLKE single tube cooler is made of 1/2” (12.7 mm) tubes with a circuit sized for the conditions of the cooling water. The tubes are mounted in a bundle of aluminum or copper fins.
To assist with the mechanical cleaning of the cooler, the coil body is fixed between tube plates with a removable header (water box). The header is also equipped with drain and venting plugs. Headers can be made of Rilsan® coated steel, stainless steel, or titanium.
The cooler may be internally cleaned by simply removing the headers and using a brush (accessory) inside the tubes.
• The tubes are mechanically expanded into the fins to give absolute contact between the two materials
• The fins on the tubes give an increased heating surface to compensate for the low heat transfer coefficient on the air side
• The pitch between the fins is selected to get required cooling duty and air pressure drop conditions