Features:

• The Auto Fill Cement Float Collar permits the casing to fill automatically while being run into the hole.

• The valve is always in the open position allowing maximum filling of the casing as it is lowered into the well bore.

• This is especially effective on liner jobs and sensitive hole conditions.

• The circulation may be established at any time during or after casing is run.

• The flapper type back pressure valve does not become operative until the drop ball is dropped or pumped down.

• Like Differential Fill-up Equipment, the Collar is activated by the same ball.

• From this point on, like Differential Fill-up Collar, this Auto Fill Cement Float Collar acts as conventional Floating Equipment.

• All Auto Fill Cement Float Collars are PDC drillable

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 .