Overview

This document provides detailed technical specifications, operating characteristics, and mechanical data for the VT6CB high-performance vane pump series. It includes volumetric displacements, pressure ratings, power input requirements, shaft types, mounting details, and performance parameters under various operating conditions.

1. Volumetric Displacement and Series Identification

• Volumetric displacement ranges from approximately 5.8 cm³/rev (0.35 in³/rev) to 45.0 cm³/rev (2.75 in³/rev).
• Displacement codes such as B02, B03, B04, B05, B06, B07, B08, B09, B10, B11, B12, and B14 correspond to specific displacements and pressure ratings.
• Series variants include options for fire-resistant fluids (S4), mineral oil (S1), and bi-directional or uni-directional flow.

2. Operating Characteristics

• Input power (kW) is provided for one cartridge at 24 cSt viscosity, with power values varying by displacement and pressure.
• Operating pressures range from 0 bar up to 275 bar (4000 psi), with maximum internal pressures specified for certain displacements (e.g., 210 bar max internal for B12, 175 bar max internal for B14).
• Maximum permissible axial load on the shaft is 800 N (180 lbs).
• Recommended maximum speeds vary by displacement, with some models limited to 2500 or 2800 rpm.
• Viscosity and temperature considerations are noted, with warnings not to operate the pump for more than 5 seconds at extreme speeds or viscosities.

3. Shaft Types and Mounting

• Two main shaft types are described: keyed shafts (no SAE) and splined shafts (16/32 teeth involute spline, 30° pressure angle, Class 1-J498b fit).
• Mounting torque specifications are provided: 96 ft-lbs for keyed shafts and 117 ft-lbs for splined shafts.
• Mounting hole details include 3/8-16 UNC-2B and 1/2-13 UNC-2B threaded holes with specified depths.
• Dimensions for shafts and mounting interfaces are given in both metric and imperial units, including diameters, lengths, and key sizes.

4. Porting and Seal Classes

• Porting combinations include SAE 4-bolt pads in 2½" and 1" sizes, with metric and UNC thread options.
• Seal classes are specified for mineral oil (S1) and fire-resistant fluids (S4, S5).
• Camring options for ports P1 and P2 are listed with corresponding displacement codes and flow rates.

5. Performance Data

• Flow rates (gpm and lpm) are provided at various pressures and speeds (typically 1500 rpm).
• Hydromechanical power loss and internal leakage data are included, showing typical losses at different operating pressures and speeds.
• Noise levels are specified according to ISO 4412 standards, with noise increasing with speed and pressure.
• Maximum permissible radial loads and axial loads are defined to ensure pump longevity and reliability.

6. Limitations and Recommendations

• Do not operate the pump for more than 5 seconds at speeds or viscosities outside recommended ranges.
• Internal leakage should not exceed 50% of theoretical flow; otherwise, the pump is not recommended for use.
• Pressure limits vary by displacement and series; exceeding these may cause damage or excessive leakage.
• Directional rotation is specified as clockwise (R) or counter-clockwise (L) when viewed from the shaft end.

Summary

The VT6CB vane pump series offers a range of displacements and configurations suitable for high-performance hydraulic applications. The document provides comprehensive data on mechanical dimensions, operating pressures, power requirements, and performance characteristics. Adherence to specified limits on pressure, speed, and load is critical for optimal pump operation and longevity. The inclusion of detailed shaft and mounting specifications facilitates integration into various hydraulic systems.