SPLIT CASE PUMPS

Product catalog summary

Overview: The PD & PDV series are split-case pumps designed for high efficiency and long service life. They are single-stage, double-suction centrifugal pumps suitable for various applications including municipal water supply, central heating, and industrial processes.

Construction: The pump casings are split along the shaft axis for easy inspection and maintenance. The impeller is of a closed type, ensuring stable operation with low energy costs and minimal vibrations. The shaft is protected by replaceable sleeves and does not contact the pumped fluid. Standard pumps come with gland packing, with mechanical seals available on request. Bearings are roller type, lubricated with grease or oil, and designed to handle minimal axial thrust due to the double suction symmetry.

Performance: The pumps operate at speeds from 1450 to 970 rpm at 50Hz, with options for different frequencies. They are typically directly coupled with the motor on the same baseplate. The pumps comply with ISO 1092 standards, with testing tolerances as per ISO 9906 Gr.2.

Field Application: These pumps are used in a variety of settings including power plants, steel works, drainage stations, petrochemical industries, air conditioning, water treatment, and fire-fighting. The range includes 27 models with delivery nozzles from 125 to 350 mm, with larger sizes available on request.

Technical Specifications:

Capacity: 50 m³/h to 3,500 m³/h
Head: 10 m to 170 m
Max Working Pressure: 25 bar
Temperature of Pumping Media: Up to 130°C

Materials:

Pump Casing: Cast Iron, with options for Ductile Cast Iron or Cast Steel
Impeller: Cast Iron, with options for Bronze or Stainless Steel
Shaft and Sleeves: Carbon Steel, with options for Stainless Steel
Casing Wear Rings: Cast Iron, with options for Bronze or Stainless Steel

Installation and Operation: The pumps can be installed in horizontal or vertical configurations, with rotation direction options for both. The sectional drawings provide detailed parts identification for maintenance and assembly.

Catalog excerpts

SPLIT-CASE PUMPS

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SPLIT-CASE PUMPS PD & PDV series PD & PDV Split-case pumps are single stage, double suction centrifugal pumps. These pumps ensure a long service life, high efficiency, low operations cost, friendly maintenance and service PD & PDV pump casings, are split along the shaft axis and allow easy inspection and replacement of the rotating parts. The position of inlet and outlet nozzles (in the lower half case of PD horizontal pumps or in the rear half case of PDV vertical pumps) allows inspection and repair without removing the pump from its position. FIELD APPLICATION PD & PDV Pumps are used in civil,...

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SECTIONAL DRAWINGS SPLIT-CASE PUMP - PD 4210.1 PARTS NAME Upper Casing Lower Casing Casing Wear Ring Impeller Shaft sealing Sleeve Bearing Spacer Sleeve Radial Ball Bearing Motor Bracket Bearing Housing Bearing Cover Bearing Bush Gland Packing Mechanical Seal Packing Seal Housing Mechanical Seal Housing Mechanical Seal Cover Base Plate Pump Half Coupling Motor Half Coupling Flushing Pipe

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INSTALLATION TYPE Horizontal Execution Vertical Execution ROTATION DIRECTION / FLOW DIRECTION Clockwise Viewed from the Drive end Counter Clockwise Viewed from the Drive end Clockwise Viewed from the Drive end 20060 Gessate (MI) - ITALY - Piazza Aturia 9 - Tel. +39 02 95423200 - Fax +39 02 95423202 10156 Torino - ITALY - Corso Romania 501/18 45019 Taglio di Po (Rovigo) - ITALY - Via dell’Industria 4 www.gruppoaturia.com Counter Clockwise Viewed from the Drive end

Open the catalog to page 4

SPLIT CASE PUMPS

SPLIT CASE PUMPS

Catalog excerpts

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