API Standard DPSB Double Packed Stuffing Box For Oilfield

Stuffing Box Detail information

The Double Packed Stuffing Box (DPSB) is a highly efficient sealing device utilized in wellheads to effectively seal the annular space between the tubing pipe and the polished rod. Its design and features make it particularly suitable for pumping units. Here are some key characteristics of the DPSB:

1. Misalignment Feature: The DPSB is uniquely designed with a misaligning feature, which reduces the requirement for precise alignment with the pumping unit. This feature enhances the ease of installation and operation.

2. Changeable Primary Packing: The DPSB allows for the primary packing to be changed under pressure by tightening compression bolts. This enables convenient maintenance and reduces downtime during packing replacement.

3. Cone Packing: The DPSB is equipped with cone packing, which enhances its sealing capabilities. The cone packing provides a reliable and efficient seal, ensuring minimal fluid pressure leakage.

4. Lub Upper Gland (LUG): The DPSB is equipped with a Lub Upper Gland (LUG) that features a grease zerk. This allows for easy lubrication of the polished rod, ensuring smooth operation and prolonging the lifespan of the equipment.

5. Additional Options: Depending on specific requirements, the DPSB can be equipped with an Oil Reservoir Gland (ORG) and an Anti-Pollution Adapter (APA) if necessary. These optional features provide enhanced functionality and protection against potential contaminants.

6. Heavy-Duty Design: The LUG of the DPSB is designed with two heavy hex nuts on each bolt, allowing it to support high loads of up to 20,000 lbs. during well servicing operations. This ensures the durability and reliability of the equipment in demanding conditions.

7. Flanged Bottom Connection: Upon special order, the DPSB can be customized with a flanged bottom connection. This configuration provides increased versatility in adapting to specific wellhead setups.

8. Industry Popularity: The DPSB is widely recognized as one of the most popular stuffing boxes in the industry due to its efficient sealing capabilities, ease of maintenance, and suitability for pumping units.

Overall, the Double Packed Stuffing Box (DPSB) is a preferred choice for sealing the annular space in wellheads, offering reliable performance, convenient maintenance, and adaptability to various operational requirements.

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 .