QDKR - Double Tube Cooler
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overview
The QDKR double tube cooler is made of 1/2” (12.7 mm) primary tubes with a circuit specifically sized for cooling water conditions.
Removable Header
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.
Technical Information
Tube specifications
- The pair of tubes are mounted in a bundle of aluminum or copper fins.
- The primary tube is inserted in a secondary copper tube with internal grooves. These grooves drain any leakage water from the primary tubes.
- The water is drained out by a clearance between the primary and the secondary tube plate to any type of leakage device.
- Modine can supply leakage detectors which can be mounted into the cooler.
- The tubes are made of copper, copper-nickel (90/10), stainless steel, or titanium.
- The secondary tube for double tube cooler is copper.
- The tubes are mechanically expanded into the fins to give absolute contact between the two materials.
Fin specifications
- The standard fins are aluminum, but can also be made of copper that resists a saline environment very well
- 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
Downloads
Coils Selection Software
COILS selection software is all you need to make the right choice from Coiltech® branded product range.
The calculation COILS provides illustrates operating conditions, dimensions, weight and volume of the coil selected. In addition, printable projecet information shows comprehensive data and dimensional drawings.
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