How to solve flow issues when FY pneumatic slurry pump handles high-viscosity materials?

When FY <a href="/en/products/fy-slurry-pump/" title="FY Series Pneumatic Slurry Pump">pneumatic slurry pump</a>s handle materials with viscosity over 80000CPS, flow reduction or intermittent discharge may occur.

Low output flow usually stems from insufficient air pressure (<0.3MPa) or clogged inlet filters. Always verify pressure gauge readings and clean the 80-mesh stainless steel filter with solvents.

Abnormal vibrations indicate either excessive viscosity nearing the 120000CPS limit or worn polyurethane seals on the guide piston. Gradual heating (5℃ increments) or seal replacement (Φ35×5mm spec) can resolve this.

Startup failure after shutdown often results from material solidification in the pump chamber. Inject dedicated cleaning solvents (e.g., xylene) for 2-hour soaking and always implement 15-minute flushing before storage.

Unstable discharge pressure with rapid air consumption points to leaking PTFE guide bearings or faulty pressure regulators. Check with soap water and replace bearings when clearance exceeds 0.1mm.