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China, Chinese 2-7/8 Nu N80-Q Casing Coupling1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Petroleum Equipment MachineryOther Petroleum Equipments Machinery2-7/8 Nu N80-Q Casing CouplingDrilling Connection
Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.
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Product DescriptionCompany ProfileTianJin Dongfanglong Machine Manufacture Co., Ltd was established in 1999 and is a national high-tech enterprise concentrating on petroleum specialized pipes, petroleum specialized drilling and production tools, and petroleum specialized automation equipment. The company has 46 engineers and highly skilled talents, over 50 independent intellectual property rights, and have created the industry's first professional e-commerce platform, the "Dongfang Yunlong E-commerce Platform". It has formed an industrial chain that integrates the design, research and development, manufacturing, sales, testing and experimentation,and technical services of petroleum machinery products and CNC automation equipment, which can meet customers' full cycle service needs for products. Since its establishment, the company has successively passed the ISO9001 quality system, ISO14001 environmental management system, ISO45001 occupational health and safety management system certification, HSE health, safety and environmental management system certification, and integration management system certification. In 2007, the company obtained the 000 5CT certificate authorized by the American Petroleum Institute and the quality supplier assessment certificate issued by BV France. With excellent system management and quality control, Dongfanglong won the "Mayor of Puyang City Quality Award"; Dongfanglong utilizes a large digital platform as its carrier to fully integrate customer resources, analyze customer types, expand business types, and conveniently and quickly complete cross-border electronic business. It aims to focus on the company's proprietary products, drive the sales of petroleum machinery in the industry, and quickly occupy and expand the market share of petroleum machinery products through e-commerce platform sales. By continuously cultivating and introducing sales elites, improving the official website sales platform, and increasing international promotion investment, our products are exported to 31 countries and regions such as the United States, Russia, and the United Arab Emirates.Product IntroductionThe 6-5/8 K55 Z STC Casing Coupling is a high-quality pipe coupling used in the oil and gas industry to connect casing pipes. Manufactured from durable K55 steel, it is designed to meet the demands of deep well drilling and enhance the integrity and safety of oil and gas operations. The coupling is equipped with a STC (Short Thread Coupling) connection, ensuring a secure and reliable fit between pipes. It is primarily used for casing and tubing connections in the construction of wellbores, providing vital support and sealing.FeaturesHigh Strength Material: Made from K55 steel, the coupling offers superior strength and corrosion resistance, making it ideal for harsh drilling environments.STC Threading: The Short Thread Coupling (STC) ensures easy installation and removal, while providing a reliable seal under high-pressure conditions.Durable Surface Coating: Typically coated with a protective layer (painting or phosphating) to resist corrosion and wear in aggressive environments.Precise Manufacturing: Manufactured to strict specifications, ensuring tight tolerances and reliable connections.ApplicationsThe 6-5/8 K55 Z STC Casing Coupling is specifically designed for use in the oil and gas industry for the following applications:Casing Pipe Connections: Used in the connection of casing pipes during wellbore construction, ensuring a secure and pressure-resistant connection.Drilling Operations: Ideal for deep well and offshore drilling where high mechanical strength and resistance to corrosive environments are required.Oil and Gas Exploration: Suitable for oilfield and gasfield applications, where safety and operational efficiency are paramount.High-Pressure Environments: Provides reliable performance under varying pressure conditions, making it versatile for different well environments.SpecificationsSize: 6-5/8 inchesMaterial: K55 Steel (Grade K55, PSL-1)Connection Type: STC (Short Thread Coupling)Length: Customizable based on requirementsSurface Treatment: Painting or phosphating for corrosion resistancePressure Rating: Suitable for low to medium-pressure applications (specific pressure rating depending on project requirements)Thread: STC (Short Thread Coupling)FAQQ: Can I customize the thread type or steel grade?A: Yes, we support 000EUE, NU, LC, BTC, and premium thread options.Q: What's the delivery time?A: Normally 15–25 days for standard couplings; custom orders may take 30–40 days.Q: What export documents do you provide?A: Commercial invoice, packing list, MTC, certificate of origin, license copy, etc.Q: How can I place an order?A: Contact us via email or phone to confirm specs and place a purchase order.Why Choose Us?Certified FactoryCompetitive Price with OEM ServiceFast Delivery & Export AssistanceStrong After-Sales SupportGlobal Supply CapabilityCustom Engineering Service
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