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1864 Valve Kit – Usage
What it is: A complete valve repair kit for Annovi-Reverberi (AR) high-pressure pumps.
What’s inside: 6 check valves + 6 O-rings.
Where it’s used: In AR pump models like XM, XMA, XMV, XT, XTA, XTV series.
Function:
Controls one-way water flow inside the pump.
Prevents backflow.
Maintains correct pressure during car washer operation.
When to replace: If pump loses pressure, pulses, or makes unusual noise.