Stuffing Box Detail information

The API 11B Oilfield Polished Rod Sealing Box, also known as a stuffing box, is designed to be installed at the Pumping Well Head. Its primary function is to seal off the Polished Rod using cone packing and a lubricated upper section that allows for self-alignment and prevents packing burnout. By effectively sealing off leakage through fluid pressure, it ensures optimal performance.

There are two options available for the stuffing box: Single Pack and Double Pack. The material used for the cap, glands, body, and base can be either 1045/4130 casting steel or ductile iron, depending on customer preferences. The bottom of the stuffing box is equipped with API gauged threads, specifically designed to match the tubing EUE or LP.

These stuffing boxes are suitable for various rod sizes, including 1", 1.1/8", 1.1/4", 1.1/2", and 1.3/4". They feature a simple structure, facilitating easy installation and convenient maintenance. The single packing or double packing, and even triple packing options ensure effective sealing performance, providing reliability and ensuring optimal operational efficiency.

Features of stuffing box for polished rod:

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 .