The material selection for pharmaceutical filling pumps must strictly adhere to GMP regulations, with the core being corrosion resistance, sterility, and precision. key considerations are as follows:

1. Corrosion Resistance

‌Strong Acid/Base‌: Prefer 316L stainless steel, PTFE or fluoroplastics (such as F46).

‌Organic Solvents‌: Must be explosion-proof, with materials resistant to chemical corrosion (e.., fluororubber).

‌High Viscosity Drug Solutions‌: It is advisable to pair with a heating module to prevent material failure due to temperature changes.

2. Sterility Requirements

‌Contact Components‌: Must be able to be sterilized (e.g., ceramic pumps, silicone tubes), complying with G standards.

‌Sealability‌: Magnetic pumps or fully sealed designs prevent contamination.

3. Precision and Durability

‌High-Precision Filling‌:amic pumps or peristaltic pumps (±0.1% error).

‌Abrasion Resistance‌: Piston pumps require cast copper or ceramic materials.

4 Other Factors

‌Production Scale‌: Semi-automatic equipment can be chosen for small batches, while full automation lines are needed for large volumes.

Fluoroplastics and ceramic pumps have a higher cost, but they last longer.