• Categories:company information
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• Time of issue:2021-11-18
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(Summary description)a. The production of the reducer should meet the 92 standard requirements. It should be welded after the equipment is burned out;
b. The manhole uses the manhole high neck flange, which has high high temperature strength and small deformation;
c. The nozzles (except the sight glass holes) should all be flat joints to facilitate piping and maintenance;
d. Nozzle and manhole should be butt-connected with the punching hole of the head. This docking structure is very conducive to the quality of the glass-lined layer;
e. The manhole cover should be an arched cover, not a flat cover;
f. The glass-lined layer on the flange surface of the nozzle and the edge of the high-neck flange surface shall not be peeled off or cracked;
g. The outer shape of the upper connecting ring should be relatively regular, and there should be no obvious signs of forcible assembly at the butt joint with the jacket;
h. The lower connecting ring should be a U-shaped lower connecting ring;
i. The water inlet of the jacket should be equipped with a hydraulic nozzle;
j. The structure of the vent hole of the jacket should meet the 92 standard.