Sort out prime issues and stop the pump from “chattering” its guts out with the ASAB DP23 Inlet Valve Kit. The inlet valve is one of the hardest-worked parts in the fluid section—if it’s worn, contaminated, or not sealing properly you’ll see slow/failed prime, pressure fluctuation, pulsing, and material drifting back down the suction line.
This kit is the workshop fix for restoring a positive seal at the inlet so the pump can load properly, hold pressure, and deliver consistent flow—especially under heavier coatings and higher duty cycles.
Key benefits
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Restores reliable priming and stronger material pick-up
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Helps eliminate pressure loss, pulsing, and unstable output caused by inlet leakage
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Reduces backflow and improves pump efficiency under load
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Ideal for preventative servicing to protect packings and valves downstream
What’s Included
Kit contents can vary slightly by revision, but typically includes the core inlet valve service components, such as:
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Inlet ball (where applicable)
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Inlet seat / cage (where applicable)
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O-rings / seals for the inlet valve assembly
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Retainers / gaskets required for correct reassembly (as applicable)
Safety Check
Before you crack the fluid section: depressurise the system fully, isolate/bleed the air supply, and confirm the gauge is at zero. Wear eye protection and gloves—material trapped in the wet end can release suddenly if you loosen the wrong thing first.