FIELD: erection of high-pressure pipe lines by welding.
SUBSTANCE: steel end branch pipes are secured on external surface of pipe ends by means of friction locking joints. Ends of pipes and branch pipes are claded inside with inserts made from corrosion-resistance metal and insulated with sealant made form dielectric material at points of contact with pipes.
EFFECT: enhanced reliability.
4 cl, 1 dwg
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