Technical Advantages
Adjustable polished rod sealing packing box series products are one of our company's traditional high-quality products, which are sold well in domestic oil fields. This series of packing boxes are installed at the wellhead and used to seal the polished rods of sucking oil wells.
Technology Introduction:
The packing pressure can be automatically adjusted with the pressure of the wellhead tubing, and the eccentric device of the product can be used to adjust when the center of the tubing and sucker rod deviates to eliminate the position deviation error of the pumping unit and the polished rod. Thereby, the problem of uneven grinding of polished rods is solved, the service life of the packing is improved, and the work of replacing the packing is reduced.
Parameter
Working pressure: 4-16Mpa
Temperature level: -29 ～ 120 ℃
Material grade: AA, BB, CC, DD, EE, FF
Specification level: PSL1-PSL3G
Performance level: PR1
Product diameter: φ52, φ65, φ78
Applicable tubing specifications: 2 3/8″, 2 7/8″, 3 1/2″
Sealed polished rod specifications: 5/8″, 3/4″, 7/8″, 1″
Eccentricity adjustment range: 0~6.5mm
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