Series DRV, 2 m³/h, 27 m, 100 °C
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Catalog excerpts

Series DRV, 2 m³/h, 27 m, 100 °C - 1

Side Channel Pumps Self-priming, vertical type DRV Sizes 0201 … 0401 Technical data Capacity: Delivery head: Speed: Temperature: Casing pressure: Shaft sealing: Connections: Direction of rotation: max. 2 m³/h max. 27 m max. 1800 1/min or max. 3600 1/min max. 100 °C PN 6 stuffing box or standard mechanical seal female British standard pipe thread (BSP) clockwise (when viewed from drive end) The Sterling SIHI DRV pump is a self-priming side channel pump capable of handling gas along with the medium and operates at a low noise level. The DRV pumps are used when clear or turbid liquids with an aggressive nature, in varied concentration and temperature ranges and without any abrasive particles, are to be handled reliably and trouble free. Casing pressure Maximum 6 bar from 0 °C to + 100 °C The performance curve steepness admits a precise regulation of the pressure with a small change in capacity. Their applications cover the private, professional and industrial fields. For example: Domestic plants and agriculture for feeding spring well fountains and for garden and lawn cultivation. Trade and industry for handling coolants, for sampling and chlorination processes in waterworks, for running bottle washing machines or for circulating buffer water in big centrifugal pumps. Chemical and pharmaceutical industry for laboratory techniques or in the food industry. Please observe Technical rules and safety regulations. Casing pressure = inlet pressure + delivery head at minimum pump capacity. Position of branches Horizontal suction and delivery branch on opposite sides of the pump. Flanges The flanges are suited with female BSP thread (inches). Bearings Two grease lubricated bearings according to DIN 625 (design B) or two liquid surrounded sleeve bearings (design F). The first grease filling is done in the factory. Design Single stage, vertical side channel pump with an open vane wheel impeller. The program comprises 3 sizes. Because of the vertical arrangement of the unit, the floor space requirements are low. If the pipelines are of sufficient stability, the units of this series can even be suspended in the piping system without any foot support. Direction of rotation Clockwise, when looking at the pump from drive end. Shaft sealing The shaft can be sealed by a stuffing box or a standard mechanical seal.

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Series DRV, 2 m³/h, 27 m, 100 °C - 2

Material design Stool resp. upper part Vane wheel impeller Bearing bracket Bearing bush Special brass, diepressed Casing seal The casing is sealed with a liquid sealing compound for material design 0A, 0B (cast iron). The casing is sealed with soft Teflon for material design 4B (stainless steel). Drive / Coupling By electrical motor. DRV in material design 0A and 0B: DRV in material design 4B: Alternating current is possible for material design 0A, 0B up to 0.25 kW. Pump and motor are connected with each other by a sleeve type coupling for material design 0A, 0B. Pump and motor are...

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Series DRV, 2 m³/h, 27 m, 100 °C - 3

DRV Sectional drawing and part list DRV in cast iron (design F, material 0A and 0B) Adapter ring only necessary for a 0.37 kW motor (not in the scope of supply for a bare shaft pump) DRV with mechanical seal or stuffing box DRV in stainless steel (design B, material 4B) Bearing bush Casing Discharge intermediate piece Cover Pump support Shaft Vane wheel impeller Bearing bracket Mechanical seal Stuffing box DRV in stainless steel is only available with a mechanical seal.

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Series DRV, 2 m³/h, 27 m, 100 °C - 4

DRV Performance graph General conditions Liquid: Density: Viscosity: Temperature: Atmospheric pressure: Water 1 kg/dm³ 1 cSt 20 °C 1013 mbar Characteristic tolerances Capacity ± 10% - Deliver head ± 10% - Power + 10% For designs with a mechanical seal or casing seal of soft Teflon, the tolerance for the delivery head is extended by 2% each. Measuring tolerance According ISO 5198.

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Series DRV, 2 m³/h, 27 m, 100 °C - 5

DRV Dimension chart and pump set drawing DRV 0201, 0301, 0401 in cast iron (material 0A and 0B) * Dimensions w1 and g vary with the motor make. An adapter ring is supplied when using a 0.37 kW motor. DRV 0201, 0301, 0401 in stainless steel (material 4B) * Dimensions w1 and g vary with the motor make.

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Series DRV, 2 m³/h, 27 m, 100 °C - 6

Sterling SIHI GmbH Lindenstr. 170, 25524 Itzehoe, Germany Telefon (04821) 771-01 Telefax (04821) 771-274 www.sihi.com

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