DPV NEMA ASME 60Hz

Summary

Product identification

The DPV(C/S) series consists of vertical, single or multi-stage centrifugal pumps, designed for pumping clean or lightly aggressive watery mediums. These pumps operate at 60 Hz and conform to ASME / NEMA standards.

Key features:

• Series: DPV(C/S) 2 - 4 - 6 - 10 - 15 - 25 - 40 - 60 - 85 - 125
• Configuration: Vertical, multi-stage centrifugal.
• Connections: In-line suction and discharge for easy installation.
• Hydraulic Parts: All hydraulic parts are made of stainless steel.
• Model Key Example: DPVSF 85/3-1 B
  • DP: Product Label
  • VS: All wetted parts Stainless Steel AISI 316
  • F: Round flange
  • 85: Capacity in m³/h at Q.opt.
  • /3: Number of stages
  • -1: Number of stages of which one stage with reduced head
  • B: Design version

Operating limits

The overall working range of the pumps is summarized as follows:

• Ambient temperature: -4 up to 104 °F
  • Note: If ambient temperature exceeds this value or motor is located more than 3280 ft above sea level, adapted motor power may be required.
• Minimum inlet pressure: NPSHreq. + 3ft
• Viscosity: 1-100 cSt
  • Note: Deviation in viscosity and/or density could require adapted motor power.
• Density: 62-156 lbs/ft³
• Cooling: Forced motor cooling
  • Note: Free space above the motor cooling fan must be at least 1/4 of the diameter of the inlet of the cooling fan.
• Minimum frequency: 10 Hz
• Maximum frequency: 60 Hz
  • Note: Pumps intended for 50 Hz operation may not be connected to 60 Hz power supply.
• Allowable size of solids pumped: 2500 to 18 Mesh
• Temperature range (Basic pump model): -4 up to 284 °F (DPV 125 up to 248 °F)

Minimum capacity (Qmin) at 68 °F:

• DPV 2: 0.9 GPM
• DPV 4: 2.2 GPM
• DPV 6: 3.5 GPM
• DPV 10: 5.7 GPM
• DPV 15: 8.8 GPM
• DPV 25: 14.1 GPM
• DPV 40: 21.1 GPM
• DPV 60: 31.7 GPM
• DPV 85: 44.9 GPM
• DPV 125: 69.9 GPM
• For minimum capacity at higher medium temperatures, see the official PDF.

Feed water / Product water

The pumps are designed for clean or lightly aggressive watery mediums. Performance characteristics are based on:

• De-aerated water at a temperature of 68 °F
• Density of 62 lbs/ft³
• Kinematic viscosity of 1 cSt

A detailed table of "Medium handled" is provided, listing various media (e.g., acids, alcohols, salts, oils, water types) with their chemical formula, maximum concentration, maximum pH, maximum temperature, and recommended material configurations for shaft seal, pump rotor, stator, and elastomers. See the official PDF for exact tabulated values.

Electrical

• Frequency: 60 Hz
• Rated motor speed at 2 pole:
  • 0.5 up to 3 hp: 3460 rpm
  • 5 hp: 3510 rpm
  • 7.5 and 10 hp: 3530 rpm
  • 15 up to 50 hp: 3550 rpm
• Variable Frequency Drive (VFD): Minimum frequency of the motor should be limited to 30 Hz.
• Motor Service Factor: Motors with a 1.25 service factor are recommended.
• Motor Bearings: NEMA C-faced motors require specific re-enforced bearings. See the official PDF for detailed bearing specifications per motor power and frame size.

Mechanical / hydraulic

• Pump Bearing: Medium lubricated stage bearing, Tungsten Carbide against Ceramic.
• Performance Standards: Detailed performance curves are in accordance with ISO 9906: 2012 (Grade 3B).
• Minimum Efficiency Index (MEI):
  • DPV 2, 4, 6, 10, 25, 40, 60, 125: MEI ≥ 0.70
  • DPV 15: MEI ≥ 0.40
  • DPV 85, DPLHS 6: MEI ≥ 0.60
• Connections:
  • DPV 2, 4, 6: Standard collar flanges in cast iron (ASME B16.1, 1.25” NPS 5/4, Class 250). Optional collar flanges in AISI 304 (ASME B16.5, 1.25” NPS 5/4, Class 300). Optional counter flange with female thread in cast stainless steel (ASME B1.20.1, NPT 1” for DPV 2/4, NPT 1.25” for DPV 6, Class 150).
  • DPV 10, 15: Standard flanges in cast iron (ASME B16.1, 2” NPS 2, Class 250). Optional collar flanges in AISI 304 (ASME B16.5, 2” NPS 2, Class 300).
  • DPV 25: Standard flanges (ASME B16.1, 2.5” NPS 2.5, Class 250).
  • DPV 40: Standard flanges (ASME B16.1, 3” NPS 3, Class 250).
  • DPV 60: Standard flanges (ASME B16.1, 4” NPS 4, Class 250).
  • DPV 85: Standard flanges in cast iron (ASME B16.1, 4” NPS 4, Class 125 or Class 250). Optional flanges in AISI 304 (ASME B16.5, 4” NPS 4, Class 150 or Class 300).
  • DPV 125: Standard collar flanges in cast iron (ASME B16.1, 5” NPS 5, Class 125/150 or Class 250/300).
  • DPLHS 6: Flanges (ASME B16.1, 4” NPS 4, Class 600).
• Dimensions and Weights: Detailed dimensions and weights for each model variant (e.g., DPV 2 B, DPV 4 B, etc.) are provided in the official PDF, including bare shaft mass and mass with motor. See the official PDF for exact tabulated values.

Seals

Mechanical seal options are available in Fixed, Easy Access, and Cartridge types, with various material combinations for the mechanical seal, shaft seal, and pump elastomer.

• Seal Materials:
  • Face material: Synthetic carbon (Carbon graphite antimony impregnated, Carbon graphite resin impregnated), SiC (silicon carbide, sintered), TuC (Tungsten carbide, NiCrMo-binder).
  • Elastomer: EPDM (Ethylene propylene rubber), FPM (Fluorcarbon rubber), HNBR (Hydrogenated Nitrile-rubber).
  • Spring material: CrNiMo steel (1.4571).
  • Construction material: CrNiMo steel (1.4571).
• Temperature Range (shaft seal): -4 to 284 °F (depending on specific seal code).
• Max. Pressure: 360 psi or 580 psi (depending on specific seal code).
• Seal dimensions are according to EN24960. See the official PDF for detailed seal option specifications and codes.

Materials

The pumps are available in basic material variants:

• VC: Cast Iron pump foot and top bracket, hydraulics AISI 304.
• V: All wetted parts Stainless Steel AISI 304.
• VS: All wetted parts Stainless Steel AISI 316.

A comprehensive parts overview is provided, detailing the material code and ASTM/ANSI code for each component (e.g., pump casing, flange, shroud, impeller, shaft, elastomers, bearings, etc.) for each material variant (VC, V, VS). See the official PDF for exact tabulated values.

Approvals

• CE: Conformity with European Safety Directive
• NSF: Drinking water approval

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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 original OEM PDF. For contractual data, always refer to the specific OEM PDF revision used on your project.

Official datasheet (PDF)

Lenntech datasheet mirror