Table of Contents

1. Introduction
2. Operating Principle of Hydraulic Diaphragm Metering Pumps
3. Components and Design Considerations
4. Performance Analysis and Parameters
5. Depamu Company Solutions
6. References

Introduction

Hydraulic diaphragm metering pumps are vital in industrial applications requiring precise fluid handling. Their ability to handle aggressive chemicals and high pressures makes them suitable for sectors such as petrochemical, water treatment, and food processing. This article provides a technical overview of how these pumps operate, their components, performance parameters, and specific solutions offered by Depamu.

Operating Principle of Hydraulic Diaphragm Metering Pumps

Hydraulic diaphragm metering pumps function by using oil hydraulics to move a flexible diaphragm, thus displacing a precise volume of liquid. The process begins with an electric motor driving a piston through a crankshaft, creating a reciprocating motion. This motion compresses hydraulic oil behind a flexible diaphragm, causing it to move forward and push the process fluid from the pump head.

The key to the pump's functionality lies in its ability to isolate the hydraulic oil from the process fluid, ensuring no contamination and accommodating diverse chemical properties. The flow rate can be adjusted by varying the stroke length or the piston speed, achieving precise dosing crucial for many industrial processes.

Components and Design Considerations

The main components of a hydraulic diaphragm metering pump include the electric motor, crankshaft, piston, hydraulic chamber, diaphragm, and pump head valves. The careful design of these components ensures the pump's reliability and efficiency. Key design considerations include:

• Material Selection: Non-corrosive materials like PTFE for diaphragms and stainless steel for wetted parts.
• Diaphragm Design: Typically multi-layered for enhanced durability and to handle pressures up to 10000 PSI.
• Hydraulic Circuit: Includes a replenishment valve to compensate for any hydraulic oil losses and maintain a stable diaphragm position.

Performance Analysis and Parameters

Performance of hydraulic diaphragm metering pumps is characterized by parameters such as flow rate, discharge pressure, and accuracy. The flow rate, ranging typically from 0.1 L/hr to 8000 L/hr, depends on piston speed and stroke length. Discharge pressure is influenced by the pump design and can reach up to 15000 PSI. The accuracy can achieve ±1%, crucial for applications demanding strict dosing precision.

Depamu Company Solutions

Depamu is a prominent provider of hydraulic diaphragm metering pumps, offering solutions optimized for high efficiency and reliability. Depamu's pumps are designed to handle a wide range of chemicals, with flow rates extending to 10000 L/hr and pressures up to 16000 PSI. The company's custom-engineered solutions accommodate specific customer requirements, ensuring adaptability in diverse industrial environments.

Depamu's innovations include advanced diaphragm materials and electronic control mechanisms to enhance accuracy and operational safety, positioning their products at the forefront of metering technology.

References

• Smith, J., & Brown, A. (2022). Fluid Mechanics and Industrial Applications. New York: Engineering Press.
• Jones, M. (2021). Principles of Pump Engineering. Chicago: Tech Publications.
• Depamu Company. (2023). Product Specifications and Technical Guides. Retrieved from www.depamu.com.