High & Medium pressure pumps D4

Product catalog summary

General Description: The document outlines a positive constant displacement, rotary, three-screw pump with a flow rate per revolution from 9.8 to 307 cm³ across 14 steps. It features a central driven screw and two sealing screws, designed to be hydraulically balanced for managing axial pressure and friction loads. The pump supports mechanical shaft seals compliant with DIN 24960 Standard.

Models: The D4 pump series includes models such as D4 xxBE, D4 xxBP, D4 xxTE, and D4 xxJE, each tailored for specific mounting and operational needs.

Specifications: The pump series offers various sizes with different rotor leads, materials, shaft seal designs, and mounting options. It operates at a maximum working pressure of 160 bar and a flow range of 10 to 850 l/min, suitable for hydraulic, seal, and fuel oils.

Design Limits: Standard models have a maximum discharge pressure of 16 MPa, while models with built-in pressure relief valves have a limit of 4 MPa. Speed and pressure limits are influenced by fluid viscosity and rotor lead, with a maximum inlet pressure of 1.0 MPa and clockwise rotation.

Filtration: A strainer is recommended in the pump inlet pipe to protect against foreign matter, with mesh widths varying based on flow rates. Additional filtration may be necessary for hydraulic systems.

Performance Data: Detailed performance data includes flow rates, power consumption, and sound levels for various pump sizes and conditions, along with recommended speed limits and fluid viscosity ranges.

Dimensions and Accessories: The document provides dimensions for different pump models and lists accessories like circular frames, flexible shaft couplings, and heating elements.

Selection Guide: A guide is available for selecting flow rate and power consumption at different speeds and viscosities, with performance data accessible from local representatives.

Overview: Technical specifications and data for various pump models are provided, detailing flow rates, power consumption, and connection dimensions, organized by pump size and discharge pressure.

Specifications:

Flow Rate and Power Consumption: Lists flow rates in dm³/s and l/min, and power consumption in kW at a viscosity of 37 mm²/s and temperature of 60°C, for speeds of 29 r/s (1750 rpm) and 58 r/s (3500 rpm).
Pressure Levels: Discharge pressures range from 2 MPa to 16 MPa.

Procedures:

Data Interpretation: Tables show flow rates and power consumption for each pump model at specified pressures and speeds, with missing data indicated by dashes.

Norms and Standards:

Connection Sets: Specifies dimensions for pipe weld and thread connection sets, including bolt specifications (ISO 8.8) and minimum lengths.

Recommendations:

Installation: Use correct flange and bolt sizes as specified for optimal performance and safety.

Key Data Summary:

Flow Rates: Vary with pressure and speed, with higher speeds generally increasing flow rates.
Power Consumption: Increases with pressure and flow rate, emphasizing efficient energy management.

High & Medium pressure pumps D4

High & Medium pressure pumps D4

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