Gland uphole axial blowout comprising a tubular adapter with a thread for connection to the wellhead valves on the one hand and the flange with the bore and the seal on the other, the upper flange seal opening and fastening members, the tubular radial shaft-sealing unit seal on the hole wellhead piston rod like at least two sections of sleeves and centering sleeves resistant, disc-preventing valve for preventing the discharge of oil from the well in emergency output shaft of the packing gland zafiksi Rowan in the standby position sledyascherychazhnym mechanism cooperating with a wellhead rod, characterized in that the coupling grommet assembly with the wellhead fixture includes a support tubular radial shaft-sealing gland unit in the form of a flange placed on a flat horizontal cylindrical chamber formed between the flanges of the adapter and the upper flange seals and fastening elements, with a minimum gap between the end faces of the flanges providing axial movement of the gland together with a rod, with their oosnoe location on an axis passing through the suspension point of the rod on the head of the rocker and eliminating transverse forces by the packing shaft on the seal and the disc blowout valve is mounted on the outer end face of the pressing sleeve, comprises a housing and a cover with a bore and an eccentric hole for the stem, forming a closed flat cylindrical chamber filled with oil, with the disc seat having a sealing surface for hermetic closure of the aperture at the exit of the rod gland manageable
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