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NACHI / Hydraulic Pumps

NACHI
VDR-1B-1A3-13

NACHI VDR-1B-1A3-13 is a VDR variable volume vane pump with flange mounting. This legacy or special configuration is listed under its complete model code. Confirm the applicable manual, performance and installation dimensions; design-22 ratings are not assigned to this unit.

Model: VDR-1B-1A3-13
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Include quantity, destination, required condition and delivery date. Pricing and availability are confirmed individually.

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What defines this model

Pump capacity
To be confirmedNot established in the reviewed model data.
Pressure adjustment
To be confirmedNot established in the reviewed model data.
Shaft key width
To be confirmedNot established in the reviewed model data.
Mounting
Flange type
Design / option
13 / no U option

Confirm this configuration

  • Legacy or special design: confirm its own manual and installation dimensions. Design-22 ratings are not assigned to this model.

Compare nearby models

Closest listed configurations in NACHI VDR. These are comparison references; interchangeability has not been established.

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Configuration comparison for VDR-1B-1A3-13
Selection factorThis modelVDR-1B-1A3-13VDR-1B-2A2-13VDR-1B-1A1-U-1133KVDR-1B-1A1-U-1586K
Pump capacityTo be confirmedConfirm configurationNot established in the reviewed model data.To be confirmedConfirm configurationNot established in the reviewed model data.To be confirmedConfirm configurationNot established in the reviewed model data.To be confirmedConfirm configurationNot established in the reviewed model data.
Pressure adjustmentTo be confirmedConfirm configurationNot established in the reviewed model data.To be confirmedConfirm configurationNot established in the reviewed model data.To be confirmedConfirm configurationNot established in the reviewed model data.To be confirmedConfirm configurationNot established in the reviewed model data.
Shaft key widthTo be confirmedConfirm configurationNot established in the reviewed model data.To be confirmedConfirm configurationNot established in the reviewed model data.To be confirmedConfirm configurationNot established in the reviewed model data.To be confirmedConfirm configurationNot established in the reviewed model data.
MountingFlange typeFlange typeFlange typeFlange type
Design / option13 / no U option13 / no U option1133K / U option · confirmConfirm configurationConfirm the U-option connections and regional configuration.1586K / U option · confirmConfirm configurationConfirm the U-option connections and regional configuration.

How to check the fit

  1. Check the design revision first

    Match the shaft key, coupling, flange and drain connections. Design 21 and design 22 have different shaft key widths; matching the family name is insufficient.

  2. Check duty and drive speed

    Use the applicable revision to verify pressure, required flow and input speed. Peak pressure is not a continuous working-pressure setting.

Product information

Model & Configuration

Manufacturer catalog and model-code reference. Confirm the supplied unit against its nameplate and the applicable manual.

BrandNACHI
Model numberVDR-1B-1A3-13
SeriesVDR
Product typeVariable volume vane pump
MountingFlange type
Design / special code13Legacy or special model. Confirm its own performance and installation drawing.

Selection & Installation

  • Confirm the complete nameplate, supplied configuration and condition before ordering.
  • Match the complete model, shaft key, coupling, flange, port and drain dimensions. Design 21 and design 22 use different shaft key widths.
  • Verify working pressure, loaded flow and input speed using the applicable design revision. Peak pressure is not continuous operating pressure.
  • Legacy/special configuration: do not use design-22 performance as an exact rating for this pump.
Manufacturer documentation

Reference information reviewed September 2026. Check the applicable revision for your equipment.

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