Ductile iron feed pipe construction method ( 2)

by:XEX     2021-02-01
Ductile cast iron water pipe construction method 6. 1. 2. 2 after the tube in the bottom of a trench inspection, after checking the socket immediately after tube, pipe position is verified. Tube under notice socket direction remains the same as that of pipe installation, at the same time in each of the interfaces to pit excavation work, working pit into mouth for the installation of the appropriate size for the convenience of pipes. 6. 1. 2. 3 clean socket flush socket, shovel to all dung, such as sand, dirt and loose soil coating and possible pollution water quality, cut aprons attachments. 6. 1. 2. Aprons will aprons on 4 clean aprons, clear clean, aprons, make the aprons bent into a heart-shaped or flower shape the slots on the socket in place, with the hand compaction, ensure that all parts not become warped twisting. Aprons for pay attention to avoid light, don't composite extrusion, long-term storage inside the box, or hood with other things. 6. 1. 2. 5 cleaning port surface interface end is taper Angle of garden and to a certain extent, in the inner surface of synthetic and jack looks besmear brushs lubricant ( Detergent) Brush, lubricant evenly inside the socket is installed good surface of rubber ring, brush brush lubricant outside the pin to pin groove. 6. 1. 2. 6 interface socket to socket alignment, a tripod, hang lever hoist, sets of wire rope, pull (lever hoist, make the pins into the socket. And attention will be given to hit the white line into the mouth of the position, ensure the Angle ≯ 3 degrees. 6. 1. 2. 7 check the first section tube and pipe installation accuracy in the second quarter, pipe socket his direction of water. After the first quarter pipe, wire rope and hand gourd to lock it, in order to prevent the outburst. After installation, check the location of the socket pushed into the socket is in line with the requirements, with the sounding rod inserted into the socket clearance check the aprons position is correct, and check whether the aprons is collision.
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