DPH(S)I High efficiency horizontal pumps

Summary

Product identification

The DPH(S)I is a horizontal stainless steel multi-stage centrifugal pump, designed for demanding industrial conditions and applications requiring high efficiency, wide temperature range, high pressure, and low NPSHr.

• Available in AISI 316 and AISI 304 stainless steel.
• Drinking water approvals: WRAS/ACS.
• Certifications and test certificates (e.g., LR, BV, ABS, DNV GL 2.1; 2.2; 3.1 and 3.2) are available upon request.

Operating limits

• Temperature range: -20°C up to +140°C
• Max pressure class: PN25
• Optional low NPSHr package available.

Performance (50Hz)

• Qmax: 22.5 m³/hour
• Hmax: 136 mwc

Performance (60Hz)

• Qmax: 26.3 m³/hour
• Hmax: 195 mwc

Feed water

Suitable for applications including water treatment, transportation of drinking water, and transportation of cooling water.

Electrical

• Frequency: 50 Hz / 60 Hz
• Phases: 1 and 3 phases
• Motor types:
  • DPH(S)I 2, 4, and 6 available with 2-pole motor.
  • DPH(S)I 10 and 15 available with 2 or 4-pole motor.
• Efficiency: Standard IE3 (≥0.75 kW), optional IE4 or IE5.
• Maximum motor power: 7.5 kW
• Also suitable for NEMA motors.

Mechanical / hydraulic

• Seal combinations: 10 possible combinations in accordance with EN12756 (Easy access and Cartridge).
• Discharge connection: Can be optionally placed on the left or right side or on top of the pump.
• Casing plugs: 2x2 plugs for draining and sensors on each side of the casing for easy accessibility.
• Suction and discharge connections: Close to each other on the casing, with a 90° angle, in line with industry standard.
• Pump foot: Cast stainless steel.
• Maintenance: Coupled motor design allows replacement of seal and engine without disassembling the hydraulics.

Connection details (Taper internal thread DIN-ISO 228-1)

• DPH(S)I 2, 4, and 6: Suction and discharge G 1 ¼
• DPH(S)I 10, 15: Suction and discharge G2

Performance curves for DPHI 2, 4, 6, 10, and 15 at 50Hz (n=2900 min⁻¹ and n=1450 min⁻¹) are available in the official PDF, showing head (H) versus flow (Q).

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Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from the official OEM PDF datasheet. For contractual data, always refer to the specific OEM PDF revision used on your project.

Official datasheet (PDF)

Lenntech datasheet mirror