The fluid reservoir/inlet is a critical component of the Precision Metering Pump Module that serves as the primary storage and entry point for the fluid being processed. It ensures a consistent and controlled supply of fluid to the pump mechanism, maintaining system stability and accuracy during operation. The reservoir holds the fluid, while the inlet provides a controlled pathway for fluid to enter the pump system. Gravity, pressure differentials, or pump suction draw fluid from the reservoir through the inlet into the metering mechanism, where precise volumes are measured and dispensed. This component is available in materials such as stainless steel, polypropylene, and PTFE, with material grade options of 304 or 316L (ASTM A240) depending on fluid corrosivity. Key parameters include a capacity range of 50–500 liters, operating pressure of 1.0–1.6 MPa, operating temperature of -20 to 80°C, inlet connection size DN25–DN100 (ISO 7005), wall thickness of 4–10 mm (GB/T 14976), surface finish Ra 0.8–1.6 µm (ISO 4287), leakage rate ≤0.01 mL/min at rated pressure with water, weight 15–120 kg, inlet pressure 0.2–0.6 MPa, fluid compatibility pH 2–12 for aqueous solutions, and certification references CE/PED (PED 2014/68/EU). These values are directory reference ranges and must be confirmed for the specific model and application. The component is designed for use in machinery and equipment manufacturing, particularly in precision metering systems. For proper selection, consider system flow rate, required residence time, and compatibility with the pump inlet flange. Verification of model-specific values and standards should be done with the legal manufacturer or supplier. Maintenance signals include leakage, pressure drops, or temperature excursions beyond specified limits. Failure boundaries include operation outside the specified pressure, temperature, or pH ranges, which may degrade seals or materials.
The reservoir holds the fluid, while the inlet provides a controlled pathway for fluid to enter the pump system. Gravity, pressure differentials, or pump suction draw fluid from the reservoir through the inlet into the metering mechanism, where precise volumes are measured and dispensed. The inlet pressure range of 0.2–0.6 MPa ensures proper pump filling. The operating temperature range of -20 to 80°C is critical; above 80°C may degrade elastomer seals. The inlet connection size must match the pump inlet flange. The fluid compatibility range of pH 2–12 is for aqueous solutions; elastomers must be checked for compatibility. The leakage rate is ≤0.01 mL/min at rated pressure with water, ensuring system integrity.
