Stuffing Box Detail information

Stuffing box is a wellhead dynamic sealing device that seals the annular space between the tubing pipe and the polished rod.

Double packed Stuffing Box (DPSB) is specially designed for pumping unit. It’s characteristics as follow:

1. Unique misaligning feature reduces need for exact alignment with the pumping unit
2. Primary packing can be changed under pressure by tightening compression bolts
3. Equipped with the cone packing
4. Lub Upper Gland (LUG) with grease zerk to lubricating the rod
5. Optional Oil Reservoir Gland (ORG) and Anti-Pollution Adapter (APA)
6. LUG has two heavy hex nuts on each bolt, which can support up to 20000 lbs. when engaged during well servicing
7. Flanged bottom connection available by special order
8. Most widely-used stuffing box in the industry

Stuffing Box Detail information

Puyang Zhongshi Group Co., Ltd., restructured from SINOPEC in 1997 has 20 years experience on manufacturing petroleum machinery products . The company registered capital is 10 million U.S. dollars, with annual export 30 million U.S. Dollars.

We have competitive price of our main products like: subsurface sucker rod pump, pumping unit, cementing tools, wellhead (Christmas Tree), etc, with certificates of API11AX,API11E,API6A,API5CT,ISO14001 and ISO9001 approved. We have 9 factories, 580 employees, including more than 160 technicians and engineers.

With 20 years manufacturing experience and more than 10 years exporting experience, our main clients include all oilfields in China such as: Zhongyuan, Daqing, Shengli, Changqing, Nanyang, Karamay, etc and we have exported to more than 30 countries abroad such as: Indonesia, Thailand, Myanmar, Russia, Kazakhstan, Venezuela, Peru, Columbia, Canada, America, Sudan, Egypt, Iran, Australia etc.

We would like to cooperate with friends from all over the world with high quality products and service to achieve mutual development .