DOLLY KIT AR 2780 CHECK VALVES XW-XWA
$52.94
Description
The AR 2780 is the complete valve service kit for the large-frame Annovi Reverberi (AR) XW and XWA Series pumps. These are high-volume, industrial-grade pumps, and this kit is designed to handle the increased water flow and pressure cycles typical of these heavy-duty units.
This “six-pack” kit includes all six valves required to overhaul the entire manifold.
Compatibility
Kit 2780 is the OEM standard for the following high-flow models:
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XW Series: XW15.15, XW21.20, XW26.15, XW26.20, XW30.10, XW30.15, XW30.20, XW30.25.
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XWA Series: XWA4G40, XWA5G40, XWA5.5G40, XWA7G40, XWA8G35.
Kit Contents
Each kit provides six pre-assembled, heavy-duty valve cartridges:
| Component | Function |
| Valve Cages | Reinforced plastic housing designed for high GPM flow. |
| Stainless Steel Springs | High-tension springs for rapid closing cycles. |
| Valve Poppets | Precision-ground stainless steel for a perfect seal. |
| Valve Seats | Hardened stainless steel to prevent “wash-out” from high velocity. |
| Valve O-Rings | High-grade Nitrile (NBR) rings for the base of each assembly. |
When to Replace (Symptoms)
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Pressure Fluctuations: If your pressure gauge is “dancing” or jumping rapidly while spraying.
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Manifold Hammering: A loud, rhythmic knocking sound (often mistaken for a rod knock) is frequently just a broken valve spring or a pitted seat.
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Loss of Prime: If the pump struggles to pull water from a supply tank or buffer tank.
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Reduced “Impact”: If you have the correct pressure but the water feels “soft” or lacks its usual cleaning force.
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