NBL5-G Two-Stage High-Pressure Gear Lubrication Pump

Product Overview

This model combines a two-stage arrangement with a 1/4-inch connection size and a listed maximum horsepower of 0.5 HP. The catalog gives overall dimensions of 26.6 × 26.6 × 46.3 cm and identifies the product as a gear high-pressure pump made in Shanghai, China.

For buyers comparing a tandem hydraulic gear pump, the NBL5-G provides a clearly stated pressure window and a configurable specification path.

Technical Specifications

Key Features

• Two-Stage Pump Layout: The listing identifies two stages, making the configuration a practical candidate when a project calls for a tandem-style gear pump. Buyers should confirm how the two stages need to serve the circuit, because the source does not specify stage-by-stage displacement, outlet arrangement, or flow division.
• Defined Pressure Ratings: Rated pressure is listed at 25 MPa, while maximum pressure is stated as 32 MPa. System pressure settings should be reviewed against the rated value, and short-duration maximum pressure should not be treated as a continuous operating target.
• Customizable Core Parameters: Maximum flow rate, power, pressure, and structure are marked customizable in the source attributes. The final quotation should identify the selected configuration rather than relying only on the general product-page values.
• Compact Connection Reference: A 1/4-inch connection size is listed for the pump. Before installation, guidance is to verify port function, thread or flange standard, orientation, and allowable piping loads. Connection size alone does not establish complete interchangeability with an existing pump or lubrication unit.
• Documented Physical Data: The published product dimensions are 26.6 × 26.6 × 46.3 cm. The single-item shipping package is listed as 100 × 100 × 100 cm with a gross weight of 21 kg. These figures can guide preliminary space and freight planning, subject to order confirmation.
• One-Year Listed Warranty: The catalog attributes state a one-year warranty and a minimum order of one set. Confirm warranty coverage, exclusions, and claim procedure in the sales documents.

Applications

The source identifies hydraulic machinery industry use and describes the NBL5-G as a high-pressure lubrication and hydraulic gear pump. The following are selection contexts, not additional performance claims; each application requires confirmation of the complete operating point and interface.

• High-pressure lubrication circuits requiring a two-stage gear-pump layout
• Hydraulic machinery projects designed around a 25 MPa rated pump
• Replacement reviews where an NBL5-G model is already specified
• Custom hydraulic packages needing confirmed flow, power, and structure
• Equipment layouts able to accommodate the published pump dimensions

Selection Guide

Start with pressure and flow. Compare the circuit's normal working pressure with the listed 25 MPa rating, then confirm whether any 32 MPa condition is temporary and permitted for the ordered configuration. Request the exact flow or displacement arrangement for both stages, because only a general displacement value of 80 is published.

Next verify mechanical and installation details: shaft interface, rotation, mounting pattern, inlet and outlet functions, fluid compatibility, speed, prime-mover power, and installation envelope. Guidance is to obtain a configuration drawing before treating the 1/4-inch connection or overall dimensions as proof of direct replacement compatibility.

Ordering Information

The minimum order is one set, and no public price range is stated in the source record. When requesting a quotation, provide the NBL5-G model, required quantity, target flow for each stage, pressure duty, rotation, shaft and mounting details, port requirements, fluid, speed, and any requested structural customization. Confirm packing and final gross weight before shipment.

Frequently Asked Questions

Q: What pressure is listed for the NBL5-G pump?

A: The source lists rated pressure at 25 MPa and maximum pressure at 32 MPa. For selection, use the rated figure as the primary continuous-duty reference and confirm the allowed duration and conditions for any operation near the stated maximum.

Q: Is the NBL5-G a two-stage pump?

A: Yes. The product record specifies two stages and presents the unit as a tandem hydraulic gear pump. It does not publish separate specifications for each stage, so stage displacement, flow allocation, and port arrangement should be confirmed before ordering.

Q: Can the flow rate be customized?

A: The maximum flow rate is marked customizable, and power, pressure, and structure are also listed as customizable. Buyers should state the required operating point and obtain a written configuration summary showing which requested values are included in the supplied pump.

Q: What are the listed size and shipping details?

A: Product dimensions are listed as 26.6 × 26.6 × 46.3 cm. The single-item package is recorded as 100 × 100 × 100 cm with a gross weight of 21 kg. Confirm final export packing because package details can affect freight planning.

Q: What should be checked before installation?

A: As installation guidance, verify rotation, shaft alignment, mounting, port identity, fluid cleanliness, inlet conditions, relief settings, and safe priming procedures. The source does not provide a complete installation manual, so use the approved drawing and instructions supplied with the ordered configuration.