Wing valve tuning
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I also think it is absolutely necessary to adjust the flap valve on-site. After it has been installed, this adjustment can be carried out on the outside of the valve. The method is as follows: use a suction cup to attach it to an appropriate position on the lower part of the valve plate, then connect it to a spring scale; apply force slowly and observe the reading on the spring scale as the valve plate opens. Repeat this several times and compare the readings with those in the technical documentation. I would like to ask experts whether this method is feasible?
On-site calibration is necessary, and it’s best to conduct a test before installation. After installation, conduct test verification; if there are any deviations, adjustments must be made. I’ve never used the suction cup method; I wonder if welding will cause some deviation. Compared to fixing it with a suction cup, I don’t have any practical experience in this regard.
Strictly speaking, this method is creative, but it won’t work; it needs further improvement. This is because the check of the flap valve is to determine whether the valve plate can open under an appropriate installation angle and with a catalyst of appropriate weight. Attach the suction cup to an appropriate position on the lower part of the valve plate, then connect it to a spring scale. Apply force slowly and observe the reading on the spring scale as the valve plate opens. Repeat this process several times and compare the values obtained with those listed in the documentation. The value obtained will be different from the weight of the catalyst, as the angle at which the spring scale is pulled varies, which in turn results in different readings.