Christmas tree includes tubing head, flat valve, regulating valve, stone, up-flange, screw thread flange, instrument, stop valve and the other components. Christmas tree with casing head together called oil and gas exploitation wellhead equipment. Tubing head installed on casing head, which is the base of oil and gas exploitation wellhead equipment. Tubing head internal pipeline hanger which is used for hanging and sealing the pipeline & sleeve annulus. Casing head connecting with cross valve assembly by up-flange, which form oil and gas recovery channel. If the indicators such as pressure, diameter allowed, can also be used for fracturing and acidizing operation.
KQ series Christmas tree design, quality control, manufacture and use all according to the API 6A & GB/T22517. And we can design the special equipment as the user's special working condition.