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 ma<strong>de</strong> ofIN-GJL-250 (grey cast iron 25) and those of types 40,50, 67, 87, 126 and 150 V are ma<strong>de</strong> 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 is<strong>de</strong>pen<strong>de</strong>nt on the medium temperature.The pressure and temperature limitsshown must not be excee<strong>de</strong>d.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 altitu<strong>de</strong> 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 altitu<strong>de</strong>above 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).Suctionmo<strong>de</strong>HS (+)Feed mo<strong>de</strong>HZ (–)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.
english6. Installation6.3 Possible methods of installation6.1 ErectionThe pump must be erected in a frost-free and wellventilatedroom.CautionIn plants for pumping hot media, makesure that people cannot acci<strong>de</strong>ntally comeinto contact with hot surfaces.A minimum clearance is required above the motorfor inspection and for repairs:– For pumps with motors up to and including4 kW: 300 mm.– For pumps with motors over 5.5 kW, a space ofat least 1 m should be provi<strong>de</strong>d by the customerfor a block and tackle.Vertical installationLVLVV1CautionMotors and pump head (motor and impeller)alone may be lifted by the suspensionshackles (if present).V2The whole pump must not be lifted by thesuspension shackles. The suspensionshackles are not sufficiently stronglydimensioned for this purpose.LVSpace above the motor0.25 to 4.0 kW 5.5 to 18.5 kWV1aHorizontal installationLV6.2 ConnectionThe arrows on the pump casing show the directionof flow of the medium.Depending on the motor size, the pump can beinstalled in horizontal or vertical pipework. Pumpswith motors up to and including 7,5 kW may beinstalled in all positions, but the motor must notpoint downwards.LVH1LVLVCautionLV vent, in<strong>de</strong>pen<strong>de</strong>ntly of the direction ofinstallation, always in the vertical axis atthe top. Exception: H1 and H1aH2H3LVH1a19
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