ZHENGZHOU, August 16,2016-Semi rigid centralizer is designed and maufactured according to API Specification 10D,but the kinds of rigid centralizer from Puyang Zhongshi Group (PYZS) with API 10D certificate for many years features far up to the performance standard set forth in API Specification 10D.

From the appearance of centralizer,the non weld semi rigid centralizer is mistaken for bow spring centralizer,but the excellent and  uniquely profiled bows offer the desirable features in bow spring centralizer and rigid centralizer for operator in cementing job of oilfield at the same time.The bows of semi rigid centralizer are processed from high grade 65Mn  alloy steel which is heat treated and tempered.During production the end collar of interlocking way is added into the semi rigid centralizer,so it is ideally to be used in oilfield work.The semi rigid centralizer is widely applied in horizontal and highly deviated wells where low running forces are a must.