Refrigeration, air-conditioning and cooling technology - 2007.pdf
Refrigeration, air-conditioning and cooling technology - 2007.pdf
Refrigeration, air-conditioning and cooling technology - 2007.pdf
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PLH_KKK_32_85.QXP 25.05.2007 10:11 Uhr Seite 66EXAMPLES FOR THE PUMP SELECTION IN THE CONDENSER CIRCUITThe selected pump is the Wilo-CronoLine-IL 65/170-1.5/4.Cavitation can be ruled out since this is a closedcircuit. For protection, the condenser circuitshould have its own safety valve <strong>and</strong> be equippedwith its own diaphragm extension vesselfor a volume expansion of 5 to 7 %.Delivery head H [m]121110987Operating data specificationsFlow 34.29 m 3 /hDelivery head9 mPumped fluid Antifrogen N (40%)Fluid temperature 10 °C654321Ø 173Density 1.073 kg/dm 3Kinematic viscosity 4.507 mm 2 /sVapor pressure0.1 bar10 510 15 20 25 30 35 40 45 50 55 60 65Flow Q [m³/h]Hydraulic data (duty point)Flow 34.7 m 3 /hDelivery head9.22 mShaft power P21.31 kWSpeed1450 rpmNPSH2.39 mImpeller diameter173 mm66 Subject to change without prior notice 02/2007 WILO AG
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