Designed for tying technical and casing strings and control of pressure in the intertube space.
Main advantages:
installation of the lower casing is possible on thread, in wedge suspension or under welding
standard threads according to API, GOST and pipe manufacturer's specifications can be used in string heads.
different types of column hangers are available
different types of pipe space seals are available
tools and accessories for drilling operations are available
level of technical requirements for manufacturing according to GOST/ API safety level: UTT 1, UTT 2, UTT 3 , UTT 4/ PSL1,SL2,SL3,SL3G, PSL4
level of technical requirements to performance characteristics according to GOST/according to API: UTR1, UTR2/ PR1, PR2
Climatic execution according to GOST: U, ??
Temperature classes according to API:K, L, P, R, S, T, U
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