Overview

This document provides detailed technical specifications, operating characteristics, dimensional data, and performance parameters for the VTXBB series high-performance vane pumps. It covers various porting options, mounting types, shaft configurations, and operating conditions relevant to hydraulic system design and maintenance.

1. Specifications and Port Connections

• Port Types: Multiple porting combinations are available, including SAE 4 bolt (UNC and Metric), SAE 12 (1 1/16" 12 UNF), and metric ports.
• Port Codes: Codes such as 00, M0, 01, P1 & P2 define specific port configurations for suction (S) and pressure (P1, P2) ports.
• Seal Classes: Options include S1 (mineral oil), S4 (fire-resistant fluids), and S5 (mineral oil and fire-resistant fluids).
• Mounting: SAE A and SAE B mounting flanges are supported.

2. Operating Characteristics

• Input Power and Flow: Data tables provide input power (kW and hp) for single cartridge operation at various pressures (0, 7, 140, 210 bar) and speeds (up to 2500 rpm) with 24 cSt fluid viscosity.
• Volumetric Displacement: Displacement ranges from approximately 5.8 cm³/rev (0.35 in³/rev) to 45.0 cm³/rev (2.75 in³/rev) across different series codes (B02 to B14).
• Pressure Ratings: Maximum internal pressures are 210 bar (3000 psi) for B12 series and 175 bar (2500 psi) for B14 series.
• Performance Limits: Pumps should not operate more than 5 seconds at speeds or viscosities exceeding specified limits; internal leakage above 50% of theoretical flow is not acceptable.

3. Mechanical and Hydraulic Performance

• Internal Leakage: Typical internal leakage values are provided for various pressures and speeds, indicating expected flow loss in liters per minute (lpm) or gallons per minute (gpm).
• Hydromechanical Power Loss: Power loss data is given as a function of pressure and speed, important for efficiency calculations.
• Noise Levels: Typical noise levels in dB(A) are specified for different pump configurations and operating speeds.
• Radial and Axial Loads: Maximum permissible axial load on the shaft is 800 N (180 lbs), with radial load limits indicated for safe operation.

4. Shaft and Mounting Details

• Shaft Types: Options include keyed shafts (non-SAE) with clockwise (R) or counter-clockwise (L) rotation.
• Shaft Dimensions: Detailed dimensions for splined shafts (SAE J498 involute spline) and keyed shafts are provided, including major diameters, key sizes, and spline profiles.
• Mounting Holes: Mounting flange hole sizes and patterns are specified, including UNC and metric thread sizes and depths.

5. Design and Modification Codes

• Design Letters and Modifications: Standard design is indicated by code 00; other codes specify modifications or special features.
• Camring and Porting Combinations: Various camring options correspond to porting configurations for P1 and P2 pressure ports.

6. Important Operational Recommendations

• Do not exceed maximum pressure ratings for each series to avoid excessive internal leakage and damage.
• Limit operation duration at extreme speeds or viscosities to prevent premature wear.
• Ensure correct shaft rotation direction and mounting to maintain pump performance and longevity.
• Use appropriate seal class based on fluid type to ensure compatibility and safety.

Summary

The VTXBB vane pump series offers a range of volumetric displacements and porting options suitable for high-performance hydraulic applications. The document provides comprehensive data on mechanical dimensions, operating parameters, power losses, leakage, and noise levels, enabling precise selection and integration into hydraulic systems. Adherence to specified pressure, speed, and fluid compatibility limits is critical for optimal pump performance and durability.