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.

The product series includes models: DPV(C/S) 2, 4, 6, 10, 15, 25, 40, 60, 85, and 125.

Model Key Example: DPVSF 85/3-1 B

• DP: Product Label
• VS: All wetted parts Stainless Steel AISI 316 (alternatives: V for all wetted parts Stainless Steel AISI 304, VC for Cast Iron pump foot and top bracket with AISI 304 hydraulics)
• 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

Approvals:

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

Operating Limits

• Ambient temperature: -4 up to 104 °F
  • Note: If ambient temperature exceeds this value or the 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: The free space above the motor cooling fan must be at least 1/4 of the diameter of the inlet of the cooling fan for sufficient airflow.
• Minimum frequency: 10 Hz (for VFD operation, minimum 30 Hz is recommended)
• 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
• Medium temperature range: -4 up to 284 °F (with the exception of DPV 125, which can be used up to 248 °F).

Minimum Capacity (Qmin) at 60Hz (at 68 °F medium temperature):

• 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
• Note: For minimum capacity at higher medium temperatures, see the official PDF for the "Minimum capacity vs. temperature" graph.

Feed Water / Medium Handled

The pumps are designed for clean or lightly aggressive watery mediums. The performance characteristics are based on de-aerated water at 68 °F with a density of 62 lbs/ft³ and a kinematic viscosity of 1 cSt.

An extensive table detailing various media, their maximum concentration, maximum pH, maximum temperature, and recommended shaft seal, pump rotor, stator, and elastomer materials is available in the official PDF. This includes common substances like acetic acid, acetone, alcohols, various salts, oils, and different types of water (untreated, boiler feed, brackish, de-ionised, sea water, etc.).

Electrical

Rated Motor Power and Speed at 60 Hz (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) Operation:

• The minimum frequency of the motor should be limited to 30 Hz.
• When rotational speed exceeds the nominal speed, ensure the motor's power output is suitable for the pump model.

Motor Service Factor:

• Pumps comply with ISO 9906:2012 Grade 3B tolerances.
• It is recommended to use motors with a 1.25 service factor.
• Up to a maximum of 15% on the rated power may be required to cover the "run-out performance" of the pump.

Motor Bearings: Specific C-faced NEMA motors can be mounted. The driven-end (DE) reinforced bearings are specified as follows:

• 0.5 hp, 56C frame: 6203 2Z-C3
• 0.75 hp, 56C frame: 6203 2Z-C3
• 1 hp, 143TC frame: 6204 2Z-C3
• 1.5 hp, 143TC frame: 6204 2Z-C3
• 2 hp, 145TC frame: 6305 2Z-C3
• 3 hp, 182TC frame: 6305 2Z-C3
• 5 hp, 184TC frame: 6306 2Z-C3
• 7.5 hp, 213TC frame: 7309
• 10 hp, 215TC frame: 7309
• 15 hp, 254TC frame: 7309
• 20 hp, 256TC frame: 7311
• 25 hp, 284TSC frame: 7311
• 30 hp, 286TSC frame: 7312
• 40 hp, 324TSC frame: 7312
• 50 hp, 326TSC frame: 7313
• 60 hp, 364TSC frame: 6312
• Non-driven-end (NDE) bearing is supplier standard for all listed powers.

Mechanical / Hydraulic

• Construction: Vertical, multi-stage centrifugal pumps with in-line suction and discharge connections.
• Hydraulic Parts: All hydraulic parts are made of stainless steel.
• Pump Bearing: Medium lubricated stage bearing, Tungsten Carbide against Ceramic.
• Performance Curves: 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 Series:
  • Standard DPV(C/S)F: Collar flanges in cast iron, ASME B16.1, 1.25” (NPS 5/4), Class250.
  • Optional DPV(S)F: Collar flanges in AISI 304, ASME B16.5, 1.25” (NPS 5/4), Class300.
  • Optional DPV(S): Counter flange with female thread in cast stainless steel, ASME B1.20.1, NPT 1” (DPV 2, 4) or NPT 1.25” (DPV 6), Class150.
• DPV 10, 15 Series:
  • Standard DPV(C/S)F: Flanges in cast iron, ASME B16.1, 2” (NPS 2), Class 250.
  • Optional DPV(S)F: Collar flanges in AISI 304, ASME B16.5, 2” (NPS 2), Class 300.
• DPV 25 Series:
  • Standard DPV(S)F: ASME B16.1, 2.5” (NPS 2.5), Class250.
• DPV 40 Series:
  • Standard DPV(S)F: ASME B16.1, 3” (NPS 3), Class250.
• DPV 60 Series:
  • Standard DPV(S)F: ASME B16.1, 4” (NPS 4), Class250.
• DPV 85 Series:
  • Standard max pressure Class125 DPV(C/S)F: Flanges in cast iron, ASME B16.1, 4” (NPS 4), Class125.
  • Optional DPVSF: Flanges in AISI 304, ASME B16.5, 4” (NPS 4), Class150.
  • Standard max pressure Class250 DPV(C/S)F: Flanges in cast iron, ASME B16.1, 4” (NPS 4), Class250.
  • Optional DPVSF: Flanges in AISI 304, ASME B16.5, 4” (NPS 4), Class300.
• DPV 125 Series:
  • Standard max. pressure Class 125/150 DPV(C/S)F: Collar flanges in cast iron, ASME B16.1, 5” (NPS 5), Class 125/150.
  • Standard max. pressure Class 250/300 DPVCF: Flanges in cast iron, ASME B16.1, 5” (NPS 5), Class 250/300.
• DPLHS 6 Series:
  • DPV(S)F: ASME B16.1, 4” (NPS 4), Class600.

Materials: The pumps are available in various material configurations:

• 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.

Key components and their standard/optional materials include:

• Pump casing: JL1040 (Cast Iron), AISI 304, AISI 316.
• (Loose plate) flange: JL1030 (Cast Iron), AISI 304.
• Pump shroud, Stage Casing, Cover, Impeller: AISI 304, AISI 316L.
• Shaft: AISI 431, AISI 329.
• Motor stool, Taper piece, Coupling (from 7.5hp), Base plate: JL1040 (Cast Iron), JS1030 (Cast Iron).
• Coupling (up to 5hp): Aluminium.
• Screwed plugs (vent) and drain: AISI 304, AISI 316.
• Tie bolt: AISI 431.
• Lock nut: AISI 304.
• Safety device Nord-lock, Circlip, Wave spring: AISI 316L, AISI 316Ti, AISI 304, AISI 316.
• Bearing sleeve: Tungsten Carbide.
• Bearing: Aluminium Oxide.

Pump Sealing Elastomers: EPDM, EPDM WRAS/ACS, FPM, EPDM 559236, HNBR, PEEK450CA30 (for DPV125).

Mechanical Seal Options (dimensions according to EN24960): Various mechanical seal options are available, combining different face materials (SiC, Tungsten Carbide, Carbon graphite), elastomers (EPDM, FPM, HNBR), and spring/construction materials (CrNiMo steel).

• Common combinations include: SiC / Ca / EPDM, SiC / Ca / FPM, TuC / TuC / HNBR, TuC / TuC / FPM, TuC / Ca / EPDM, SiC / Ca / HNBR, TuC / Ca / FPM.
• Temperature ranges for seals: Typically -4 to 212 °F or -4 to 248 °F (with some up to 284 °F).
• Maximum pressures for seals: Typically 360 psi (with some up to 580 psi).

Dimensions and Weights: Detailed tables for dimensions (E1, E2, P, F1, F2 in inches) and weights (bare shaft mass, mass with motor in lbs) are provided for each DPV and DPLHS model and number of stages in the official PDF. Motor dimensions and weights are based on typical NEMA motors, not supplied by DP Pumps.

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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 complete OEM PDF datasheet. For contractual data and full product specifications, the official OEM PDF revision used on the project must be consulted.

Official datasheet (PDF)

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