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6.1.11.5.1.5. Provision of completely open butterfly valve

PERFORMANCE ORDER
1. Close the air gate and enshrine by an elastic band it in this provision.
2. Open a butterfly valve and measure a gap From the air gate in this position of the gate. The gap of C has to conform to the requirements provided in subsection 6.1.1.
3. For adjustment, being careful, turn in the part of draft shown in the drawing. At a uvula podgibaniye the gap to the right increases, and at a podgibaniye on the left – decreases.