V3 11 Check valve kit
Applicable for:
- Easy, all models
- Smart, all models
- Go, all models
This kit contains all 6 valves connected to the pressure chamber inside the pump. These valves manage the flow of water in and out of the pump's cylinders, ensuring stable and efficient pressure.
All valves in the kit are identical, but their position determines their function: the suction valves (inlet) and high-pressure valves (outlet) are installed facing opposite directions.
The package includes 6 complete valves with integrated O-rings.
*Recommended for qualified technicians – Always consider a complete module kit.
*Valve damage often comes with wear in nearby parts. If your machine has run with vibration or pressure loss, or you are unsure on how to diagnose pump internals or valve damage, we recommend using a full 5-Year Warranty and Repair Kit to restore proper performance and reduce repair time.
See overview of all kits here.
Typical cause of failure
• Debris or scale build-up causing the valves to stick or not seal properly
• Frost damage or incorrect storage over winter
• Long-term wear from frequent use or poor water quality
Failure symptoms – Part correlation
• 33% pressure loss and noticeable vibration when 1 or 2 valves connected to the same piston fail – often felt in the hose
• 66% pressure loss and significant vibration when valves on two pistons are affected
• Intermittent pressure, pulsing, or rattling sound from the pump
Installation advice
Always prioritize safety first: Safety instructions – AVA of Norway
- Ensure you have considered the alternative above.
- Easy guide: follow to step 10 in guide, then:
- Carefully extract old valves, inspect the valve seats and clean with fine sandpaper (emery paper).
- Apply a thin layer of silicone grease to new valves and seats before fitting.
- Install inner (centre) valves with the O-ring facing down.
- Install outer valves with the O-ring facing up.
Ensure correct orientations. Reassemble with care.
Tools Needed for all AVA Pressure Washer Maintenance – AVA of Norway
Warranty and Self-Repair – The AVA Way
At AVA, we encourage repair – not throwaway culture. You’re free to open your machine, inspect it, and replace parts yourself without losing your warranty. That’s part of what makes owning an AVA product different.
We offer guides, spare parts and support so that you can keep your machine running for many years to come – whether it’s a simple nozzle, a carbon brush, or a full pump module.
Many parts are designed to be replaceable – just like they should be.
Visible signs of use or repair are welcomed – they mean the product is being cared for.
Learn more about our warranty: AVA Warranty Terms & Conditions
Price includes VAT
V3 11 Check valve kit
Applicable for:
- Easy, all models
- Smart, all models
- Go, all models
This kit contains all 6 valves connected to the pressure chamber inside the pump. These valves manage the flow of water in and out of the pump's cylinders, ensuring stable and efficient pressure.
All valves in the kit are identical, but their position determines their function: the suction valves (inlet) and high-pressure valves (outlet) are installed facing opposite directions.
The package includes 6 complete valves with integrated O-rings.
*Recommended for qualified technicians – Always consider a complete module kit.
*Valve damage often comes with wear in nearby parts. If your machine has run with vibration or pressure loss, or you are unsure on how to diagnose pump internals or valve damage, we recommend using a full 5-Year Warranty and Repair Kit to restore proper performance and reduce repair time.
See overview of all kits here.
Typical cause of failure
• Debris or scale build-up causing the valves to stick or not seal properly
• Frost damage or incorrect storage over winter
• Long-term wear from frequent use or poor water quality
Failure symptoms – Part correlation
• 33% pressure loss and noticeable vibration when 1 or 2 valves connected to the same piston fail – often felt in the hose
• 66% pressure loss and significant vibration when valves on two pistons are affected
• Intermittent pressure, pulsing, or rattling sound from the pump
Installation advice
Always prioritize safety first: Safety instructions – AVA of Norway
- Ensure you have considered the alternative above.
- Easy guide: follow to step 10 in guide, then:
- Carefully extract old valves, inspect the valve seats and clean with fine sandpaper (emery paper).
- Apply a thin layer of silicone grease to new valves and seats before fitting.
- Install inner (centre) valves with the O-ring facing down.
- Install outer valves with the O-ring facing up.
Ensure correct orientations. Reassemble with care.
Tools Needed for all AVA Pressure Washer Maintenance – AVA of Norway
Warranty and Self-Repair – The AVA Way
At AVA, we encourage repair – not throwaway culture. You’re free to open your machine, inspect it, and replace parts yourself without losing your warranty. That’s part of what makes owning an AVA product different.
We offer guides, spare parts and support so that you can keep your machine running for many years to come – whether it’s a simple nozzle, a carbon brush, or a full pump module.
Many parts are designed to be replaceable – just like they should be.
Visible signs of use or repair are welcomed – they mean the product is being cared for.
Learn more about our warranty: AVA Warranty Terms & Conditions
