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Find Why the Check Valve Leaks

Read the symptom, inspect the check-valve cutaway, and click the damaged part. Clear all three cases.

Valve body Disc Seat Spring Disc guide
Symptom

The valve chatters and will not hold pressure at low flow. One part has failed.

Fluid keeps seeping back even when the valve is fully closed. Something on the sealing face is worn.

The disc sticks half-open and never seats squarely. A sliding surface is damaged.

Case 1 / 3 Time 00:00 Mistakes 0
Read the symptom, inspect the cutaway, then click the part that is damaged.

Frequently asked questions

How do you play this diagnosis game?

Three cases appear one after another. Read the symptom, look at the check-valve cutaway, then click the part that is visibly damaged. The faulty part is marked with a defect.

What kinds of faults can a check valve have?

A broken or weakened spring, a gouged or worn seat, or a scored disc guide. Each one makes the valve leak or stick in a different way.

What happens if I click the wrong part?

The mistake is counted and the part shakes, but the case stays open. You can keep inspecting until you find the damaged component.

Is this a real diagnostic procedure?

No. It is a simplified teaching puzzle, not a maintenance or engineering procedure. Do not use it for real valve inspection.

Disclaimer: Diagrams are heavily simplified for educational demonstration only. Real-world systems contain far more variables and complexity. Not for engineering production use. Not financial, political or professional advice. Failure modes are conceptual demonstration only, do not use for real-world safety assessment.