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Catalogue - Series ADH, 7.2 m³/h, 250 m, 120 °C

Catalogue - Series ADH, 7.2 m³/h, 250 m, 120 °C
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Catalogue - Series ADH, 7.2 m³/h, 250 m, 120 °C - 1

Side Channel pumps Self-priming, segmental type Technical data Casing pressure: Shaft sealing: Flange connections: standard mechanical seal (when seen from the drive end) The Sterling SIHI ADHL/AEHL and CDHL pumps are self- priming side channel pumps capable of handling gas along with the medium and operates at a low noise level. The ADHL/AEHL series are used to handle clear or turbid liquids, under high heads and without any abrasive particles, reliably and trouble-free. The CDHL with NPSH-improving inducer stage are used when liquids under critical suction conditions have to be handled reliably and trouble-free. With these pumps a safe and efficient pumping service can be achieved even if the net positive suction head available is The number of hydraulic stages are as is customary in the boiler industry. The performance curve steepness admits a precise regulation of the pressure with a small change in capacity. • Boiler industry for condensate and boiler feed water • Washing, cleaning and spraying plants, The pumps of the ADHL/AEHL and the CDHL series have a segmental construction with open vane wheel impellers. The CDHL pumps (combination pumps) are equipped with open impellers as well as a suction side centrifugal stage for attaining superior characteristics with respect to the Net Positive Suction Head (NPSH). The pumps of the ADHL/CDHL/AEHL series are side channel pumps of the high-speed type that have been designed with special regard to noiseless running. The program comprises Casing pressure Maximum 25 bar from 0 °C up to +120 °C for ADHL/CDHL Maximum 40 bar from 0 °C up to +120 °C for AEHL Please observe Technical rules and safety regulations: Casing pressure = inlet pressure + delivery head at minimum pump capacity. Suction and discharge branch point radially upwards. The flanges correspond to DIN EN 1092-2, PN 25 for ADHLV CDHL and PN 40 for AEHL. Flanges drilled according to ANSI One grease lubricated ball bearing according to DIN 625 and one liquid surrounded sleeve bearing (design A). The first grease filling is done in the factory. Clockwise, when looking at the pump from the drive end. Shaft sealing The shaft can be sealed by a stuffing box or a standard mechanical seal. Sterling Fluid Systems Pumping Technology ADHLVCDHL/AEHL-00 / 2003

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Catalogue - Series ADH, 7.2 m³/h, 250 m, 120 °C - 2

Material design ADHL/AEHL/CDHL Casing seal The casing is sealed with a liquid sealing compound. Drive / speed By electric motor, type of construction!M B3. For pump size ADHL 0800/0900 with 1 to 4 stages, speed General comments In case of greater delivery heads and capacity we recommend the CEH heavy-duty pump with inducer stage for the handling of condensates and liquid gasses (PN 40). Technical documentation about this pump series will be readily Performance range ADHL/AEHL/CDHL General conditions Atmospheric pressure: Characteristic tolerances Capacity ± 5% - Delivery head ± 5% - Power +...

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Catalogue - Series ADH, 7.2 m³/h, 250 m, 120 °C - 3

Sectional drawing and parts list ADHL/AEHL/CDHL (typical) 1080 Discharge intermediate piece 1090 Suction intermediate piece 1110 Suction intermediate piece 1140 Discharge intermediate piece 2350 Vane wheel impeller AEHL with stuffing box CDHL with mechanical seal or stuffing box All possible design combinations can be found in the delivery program Sterling Fluid Systems Pumping Technology ADHLVCDHL/AEHL-00 / 2003

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Catalogue - Series ADH, 7.2 m³/h, 250 m, 120 °C - 4

Selection chart for boiler feed pumps When designing and dimensioning the pumps, the regulations concerning the fitting out and erection of steam generators (TRD 401 ) have been adhered to. For the determination of the boiler capacity, a generated steam volume per hour of 40 kg/m2 of heating surface has been taken as a base. The pumps are capable of a feed-water service for 1,6 times the steaming capacity and they can overcome 1,2 times the service pressure. Under such conditions, the motors provided are not fully charged. The selection table gives: pump size ADHL 1402 respectively CDHL...

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Catalogue - Series ADH, 7.2 m³/h, 250 m, 120 °C - 5

Dimension chart, Pump set drawing and Performance curves General: Values are valid for water p = 1 kg/dm3 and v = 1 cSt. Characteristic tolerances: Capacity ± 10% - Delivery head ± 10% - Power + 10%. For designs with a mechanical seal the tolerance for the delivery head is extended by 2%. * Dimensions depend upon the motor brand. Sterling Fluid Systems Pumping Technology ADHLVCDHL/AEHL-00 / 2003

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Catalogue - Series ADH, 7.2 m³/h, 250 m, 120 °C - 6

Dimension chart, Pump set drawing and Performance curves General: Values are valid for water p = 1 kg/dm3and v = 1 cSt. Characteristic tolerances: Capacity ± 10% - Delivery head ± 10% - Power + 10%. For designs with a mechanical seal the tolerance for the delivery head is extended by 2%. * Dimensions depend upon the motor brand. Sterling Fluid Systems Pumping Technology ADHLVCDHL/AEHL-00 / 2003

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Catalogue - Series ADH, 7.2 m³/h, 250 m, 120 °C - 7

Dimension chart, Pump set drawing and Performance curves General: Values are valid for water p = 1 kg/dm3and v = 1 cSt. Characteristic tolerances: Capacity ± 10% - Delivery head ± 10% - Power + 10%. For designs with a mechanical seal the tolerance for the delivery head is extended by 2%. * Dimensions depend upon the motor brand. Sterling Fluid Systems Pumping Technology ADHLVCDHL/AEHL-00 / 2003

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Catalogue - Series ADH, 7.2 m³/h, 250 m, 120 °C - 8

Dimension chart, Pump set drawing and Performance curves General: Values are valid for water p = 1 kg/dm3and v = 1 cSt. Characteristic tolerances: Capacity ± 10% - Delivery head ± 10% - Power + 10%. For designs with a mechanical seal the tolerance for the delivery head is extended by 2%. * Dimensions depend upon the motor brand. Sterling Fluid Systems Pumping Technology ADHLVCDHL/AEHL-00 / 2003

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