ISO TC 67/SC 4 - American Petroleum Institute

The bottom connection shall match the wellhead. The tubing head and connector may be manufactured as an integral unit. Tubing heads shall conform to standard pressure ratings of 34,5 MPa (5 000 psi), 69 MPa (10 000 psi) or 103,5 MPa (15 000 psi), as applicable. Body proof testing shall be conducted at 1,5 times the pressure rating. ................
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