API Standard Double Packed Stuffing Box for Polished Rod

Regular Stuffing Box (SB) is specially designed for pumping unit.

1.The polished rod stuffing box is designed with two sealing structure with reasonable structure, convenient operation, reliable sealing.

2.It has an automatic adjustment of the level of the axial center and automatically adjust the angle that allows the rod back and forth to run automatically adjust volume and pan angle to ensure the polished rod stuffing box with polished rod concentric, eccentric wear to avoid the phenomenon. 3.There are two options available for the stuffing box: single pack and double pack.

4.The materials used for the cap, glands, body, base, and bottom are either 1045/4130 casting steel or ductile iron, depending on customer demand. The bottom of the stuffing box features API gauged threads of tubing EUE or LP. 5.These stuffing boxes are suitable for rod sizes 1", 1-1/8", 1-1/4", 1-1/2", and 1-3/4".

Specification: 1500psi

Connecting Thread: 2-7/8” EUE, 3” LP,

3-1/2” EUE

Working Temperature: 149℃ (H2S & CO2 below 1%)

120℃ (H2S below 2% & CO2

below 10%)

Good performance at Mechanical Tear and Abrasive Resistance & in Steam

Environments

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 .