Bertolini Diaphragm Repair Kits – PA330, PA430, PA530, PA730 & Poly Series

Genuine Bertolini Diaphragm Repair Kits – Direct-Fit Pump Maintenance

Restore peak performance to your Bertolini diaphragm pump with these genuine replacement repair kits. Engineered to OEM specification, each kit provides everything needed for a complete diaphragm service — keeping your spray system running reliably season after season.

Kit Contents

• Piston diaphragms
• Accumulator diaphragm (model dependent, where applicable)
• Inlet valve O-rings
• Outlet valve O-rings

Why Replace Instead of Repair?

Diaphragm failure is one of the most common causes of pump pressure loss and inconsistent spray output. Replacing worn diaphragms and seals at the first sign of deterioration prevents costly downtime during critical spray windows. A genuine kit ensures correct material grades and dimensional tolerances — no guesswork, no compromises.

Key Material Benefits

• High mechanical strength for demanding field conditions
• Excellent resistance to wear and abrasion
• Flexible across a wide operating temperature range
• High elasticity for consistent seal performance
• Good resistance to oils, greases, and agricultural solvents
• Durable against UV and weather exposure

Compatible Models

Select your pump model from the variant options above to ensure you receive the correct kit.