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Circulating Sub for Wellhead Pipe String and Ground Circulating System Connecting1
Petroleum Equipment MachineryCirculating SubAPI Circulating Sub
Best-all Petroleum Machinery Co., Ltd.
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Product Description Product DescriptionCirculating sub is installed in the top of drilling stem. The upper thread is connected with circulating system of casing, tubing, and union thread to circulate the drilling fluid. It divided into casing circulating sub, tubing circulating sub, union circulating sub and tee sub.How to order: Sizes & connections; Please specify special requirements.Detailed Photos Circulation joints are usually made of high-strength materials that can withstand high pressure, high temperature, and high-speed mud shocks.The multi-stage sealing design is adopted in the connection to ensure the safety and reliability of the connection port and avoid the occurrence of mud leakage and broken head.The circular joint is small in size, light in weight, easy to operate, and can be quickly connected anddisassembled, saving a lot of time and human resources.Specifications -Circulating Sub With Drill Pipe ThreadThread/ ModelI. D(mm)Length(mm)Drill pipe boxc onnectionCasing threadNC385 BTC575805 LTC5 STCNC385 1/2 BTC575805 1/2 LTC5 1/2 STCNC507 BTC716107 LTC7 STCNC509 5/8 BTC716109 5/8 LTC9 5/8 STCNC5010 3/4 BTC7161010 3/4 STCNC5013 3/8 BTC71650Specifications -Circulating Sub With Hammer union ThreadThread/ ModelI. D(mm)Length(mm)Drill pipe boxc onnectionCasing thread2"1502 Union5 BTC50.85002"1502 Union5 1/2 BTC50.85002"1502 Union7 BTC50.85007 LTC2"1502 Union9 5/8 BTC 5009 5/8 LTC2"1502 Union10 3/4 BTC50.856010 3/4 STC2"1502 Union13 3/8 BTC 61013 3/8 STCMore ProductsCompany ProfileBest-all Petro is located in Dongying City, which is famous for Shengli Oilfield. It is the largest petroleum equipment manufacturing center in China. Best-all Petro is a professional manufacturer of mud pump spare parts. We have obtained API 7K certification and ISO international quality certification.Our main products are: bi-metal cylinder liner, ceramic cylinder liner, hydraulic cylinder, piston, valve assembly and other mud pump spare parts.Our products are not only widely used in the domestic market such as Shengli Oilfield, but also exported to Central Asia, the Middle East, Southeast Asia, North America, South America and other countries in the world. The company follows the principle of "quality first, integrity-based." Because of excellent quality, reasonable price and professional service, we have been highly recognized by customers. Our vision is to become a trusted partner of the international oil equipment industry. Our mission is to provide customers with first-class products and services,and create more value for global customers.Packaging & ShippingFAQ1.How do you transport the goods?We transport the goods by container. we possesses long term cooperation with ship agency which can provide you lowest shipping fee. For samples we can send by express.2.Can you satisfy my special requirement?Definitely! we have strong design capacity and R&D capacity!3.Which shipment terms can you accept?EXW FOB CNF CIF DDU DDP
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