Stuffing Box Detail information

The stuffing box is an essential component in wellheads that serves as a dynamic sealing device, creating a seal within the annular space between the tubing pipe and the polished rod.

The Double Packed Stuffing Box (DPSB) is a specially designed version intended for pumping units, and it boasts several notable characteristics:

1. It features a unique misaligning capability, which reduces the need for precise alignment with the pumping unit, providing flexibility during installation.
2. The primary packing can be easily changed without interrupting operations by tightening compression bolts, allowing for efficient maintenance.
3. Equipped with cone packing, the DPSB ensures reliable and effective sealing, minimizing the risk of leaks.
4. The Lub Upper Gland (LUG) is equipped with a grease zerk, facilitating the lubrication of the polished rod for improved performance and longevity.
5. Optional components such as the Oil Reservoir Gland (ORG) and Anti-Pollution Adapter (APA) are available to meet specific requirements.
6. The LUG is designed with two heavy hex nuts on each bolt, providing outstanding support of up to 20,000 lbs. during well servicing operations, ensuring safety and stability.
7. Upon special order, a flanged bottom connection can be accommodated, catering to unique installation needs.
8. Renowned for its reliability and versatility, the DPSB is widely recognized as the most widely-used stuffing box in the industry, demonstrating its trusted performance and popularity.

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 .