This complaint was reopened in reference to (b)(4).Investigation: we received the valve in a clear bag.The valve was not inserted in liquid and was sent dry.The progav was set to pressure range 0 cmh2o at the time of delivery.Optical inspection: first step of our investigation is the optical inspection.The visual inspection revealed that the valve has no apparent deformations or other abnormalities.The examination of the parallelism could confirm this as well.The measured value was within the accepted tolerance.Result: first of all we want to point out that we received the valve dry in a plastic bag (without liquid).The investigation of a dry valve is not significant because dry deposits of liquor and blood can affect the product performance.In spite of this, we still decided to investigate the valve.In the visual inspection of the valve, we could not detect any apparent damage.This could be additionally confirmed by measuring the parallelism.To proof if the brake function is full in place we carried out a brake function test.The investigation has shown that the brake function is present.Also the braking force is inside the accepted tolerance.Moreover, it was possible to adjust the valve in all pressure ranges up and down again in the same way.Further we carried out a permeability test.The investigation has shown that the valve was not permeable.Because the valve was sent dry, we suspect that dry deposits inside the valve probably have been affected the product performance.Based on our investigation results, we cannot confirm that it was not possible to adjust the valve.Every adjustment was possible by using the progav check mate.But at the time of delivery there is no failure detectable with this progav valve.No further actions required.
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