instrucţiune de funcţionare (2.0 MB)

english5. Technical Data5.1 Ambient temperature: max. +40 °C5.2 Medium temperature: –20 °C to +140 °CDepending on the casting quality and field of use,local regulations and statutory provisions mayrestrict the maximum medium temperature.As standard, the pump casings and the pump coversof types 35, 45, 55, 65, 85 and 100-V are made ofIN-GJL-250 (grey cast iron 25) and those of types 40,50, 67, 87, 126 and 150 V are made of IN-GJS-400(nodular graphite iron 40).5.3 Max. permissible operating pressure (ultimatepumping pressure)Standard version: 10 bar: 140 °CSpecial version: 13 bar: 140 °C16 bar: 120 °CCaution The maximum operating pressure isdependent on the medium temperature.The pressure and temperature limitsshown must not be exceeded.5.4 Operating pressure/feed pressure/suction heads5.4.1 Min. feed height for closed systems(Required gauge pressure at the suction nozzle of thepump). (Table 1)The values are applicable for hot water generationplants. Install 500 m above sea level.Caution Only small resistances are permissible inthe suction line, i.e. the zero point of theplant is shortly before the suction nozzleof the pump.The required operating pressure changesby +/–0.01 bar per +/–100 m altitude above sea level.5.4.2 Minimum feed heights, maximum suctionheads for open systems (Table 2)Table 2 shows the minimum feed heights or themaximum suction heads at a barometric pressure of101.3 kPa, corresponding to 0 m above sea level atthe maximum pumping flows. The required feedheight changes by +/–0.1 m per +/–100 m altitudeabove sea level.A negative number means the minimum requiredfeed height and a positive number the maximumpossible suction head at the suction nozzle at differentmedium temperatures. The losses due to frictionin the suction line should be kept very small (Table 2).SuctionmodeHS (+)Feed modeHZ (–)5.5 Max. feed pressureThe max. feed pressure + zero pumping pressuremust always be lower than the «max. permissibleoperating pressure».5.6 Min. pumping flowA minimum pumping flow must always pass throughthe pump.CautionA minimum pumping flow of 10% of thepumping flow at the best efficiency pointmust always flow through the pump.The pumping flow and the pumping height at thebest efficiency point are shown on the pump’s typeplate.5.7 Max. pumping flowThe maximum pumping flow must not exceed thevalues quoted for the individual pumps. Otherwise,there is a risk of, for example, cavitation and overloading.5.8 Connections. See Appendix5.9 Electrical dataSee the motor’s type plate.5.10 Dimensions and weights. See Appendix5.11 Noise level (sound pressure level).See AppendixTable 1 Table 2Pump type Temperatur60°C 75°C 90°C 110°C 140°CEBZ 35 V/4 0,0 0,2 0,8 2,1 5,6EBZ 35 V/2 0,2 0,6 1,2 2,5 6,0EBZ 40 V/4 1,1 1,4 2,0 3,3 6,9EBZ 45 V/4 0,0 0,4 1,0 2,3 5,8EBZ 45 V/2 0,8 1,2 1,8 3,1 6,6EBZ 50 V/4 1,1 1,4 2,0 3,3 6,9EBZ 55 V/4 0,4 0,8 1,4 2,7 6,3EBZ 55 V/2 1,6 2,0 2,6 3,9 7,4EBZ 65 V/4 0,4 0,7 1,3 2,6 6,2EBZ 65 V/2 1,5 1,9 2,5 3,8 7,4EBZ 67 V/4 0,7 1,1 1,7 3,0 6,5EBZ 85 V/4 0,2 0,5 1,1 2,4 6,0EBZ 87 V/4 1,0 1,4 2,0 3,3 6,8EBZ 100 V/4 0,3 0,7 1,3 2,6 6,1EBZ 102 V/4 0,8 1,2 1,8 3,1 6,6EBZ 126 V/4 0,4 0,8 1,4 2,7 6,2EBZ 150 V/4 0,4 0,8 1,4 2,7 6,3Required gauge pressure at suction branch in [bar].For minimum required gauge pressure at suctionnozzle in m, see Section 13.18Pump type H s (+), H z (–) [m]20°C 40°C 60°C 75°C 90°CEBZ 35 V/4 6,6 4,3 1,5 – 2,3 8,3EBZ 35 V/2 1,6 0,3 – 2,5 – 6,3 –12,3EBZ 40 V/4 – 6,5 – 7,7 – 10,5 –14,3 –20,3EBZ 45 V/4 3,6 2,3 – 0,5 – 4,3 –10,3EBZ 45 V/2 – 4,5 – 5,7 – 8,5 –12,3 –18,3EBZ 50 V/4 – 6,5 – 7,7 –1 0,5 –14,3 –20,3EBZ 55 V/4 – 1,0 2,2 – 5,0 – 8,8 –14,8EBZ 55 V/2 –12,4 –13,7 – 16,5 –20,3 –26,3EBZ 65 V/4 – 0,3 – 1,5 – 4,3 – 8,1 –14,1EBZ 65 V/2 –12,0 –13,2 – 16,0 –19,8 –25,8EBZ 67 V/4 – 3,5 – 4,7 – 7,5 –11,3 –17,3EBZ 85 V/4 1,8 0,5 – 2,3 – 6,1 –12,1EBZ 87 V/4 – 6,5 – 7,7 – 10,5 –14,3 –20,3EBZ 100 V/4 0,5 – 0,8 – 3,6 – 7,4 –13,4EBZ 102 V/4 – 4,5 – 5,7 – 8,5 –12,3 –18,3EBZ 126 V/4 – 0,5 – 1,7 – 4,5 – 8,3 –14,3EBZ 150 V/4 – 1,0 – 2,2 – 5,5 – 8,8 –14,8For calculation of the min. feed height,see Section 13.