AR 2408 Valve Kit for AR252 Diaphragm Pump

AR 2408 Valve Kit for AR252 Diaphragm Pump

The Annovi Reverberi (AR) 2408 Valve Kit provides a complete set of replacement inlet and outlet check valves for the AR252 diaphragm pump. These valves control fluid movement through the pump, allowing liquid to enter during the suction stroke and helping prevent reverse flow during the discharge stroke.

Over time, valves can become worn, damaged, or obstructed by debris, affecting pump suction and pressure. Replacing faulty valves can help restore consistent flow and reliable spraying performance without replacing the entire pump.

What's Included?

• 4 Complete Valve Assemblies (AR 809060)
• 4 Valve O-Rings (AR 880830)

The kit provides the valve assemblies and associated O-rings for servicing all four valve positions in an AR252 pump.

When Should You Replace the Pump Valves?

Worn or malfunctioning check valves can interfere with the pump's ability to draw in liquid and maintain consistent discharge pressure. Common symptoms that may indicate a valve problem include:

• Difficulty Priming: The pump struggles to draw liquid from the supply tank.
• Low or Inconsistent Pressure: Pressure fluctuates or remains below normal operating levels.
• Irregular Spray Flow: Pulsating or uneven output that persists after checking the spray system.
• Visible Valve Damage: Cracked, worn, or debris-contaminated valve components that no longer seat properly.

What to Check Before Replacing the Valves

These symptoms can also result from other problems in the spray system. Before replacing the valves, inspect the following:

• Suction Filter: Clean any debris restricting liquid flow into the pump.
• Suction Hose & Connections: Check for air leaks, loose fittings, collapsed hoses, or restrictions.
• Valve Condition: Inspect for debris, damaged sealing surfaces, or worn O-rings that prevent the valves from seating properly.
• Pump Diaphragms: Check for diaphragm damage if pressure problems continue after the inlet system and valves have been inspected.

If the valves are worn or damaged, replacing the complete set helps ensure consistent operation across all four valve positions.

Product Specifications

Installation & Maintenance Tips

Before servicing the pump, shut down the equipment, relieve system pressure, and drain the pump according to the manufacturer's instructions. Remove the existing valves and inspect the valve seats and surrounding surfaces for damage or debris.

Install the replacement valves and O-rings in the correct orientation, following the AR252 service manual. Reassemble the pump using the manufacturer's specified procedures and torque values, then prime the system and check for proper operation and leaks.

Maintenance Tip: Keeping the suction filter clean and preventing debris from entering the pump can help reduce premature valve wear.