Onshore and offshore petroleum drilling operations involve complex and harsh working environments, including high-pressure fluid impact, continuous pipeline vibration, on-site friction and abrasion, and occasional open-flame and high-temperature risks. Conventional rubber hoses are difficult to adapt to long-term cyclic high-pressure operation and harsh field conditions, prone to surface wear, structural delamination and fluid leakage, which affects the safety and stability of drilling and well control systems. The multi-size API 16C rotary drilling hose is professionally developed for petroleum drilling and exploitation fluid transmission. With standardized abrasion-resistant and fire-resistant structural design, it can adapt to diverse high-pressure fluid conveying scenarios in oilfield construction, meeting the basic equipment matching needs of oil and gas exploration projects. 2. Strict Manufacturing Compliance with API 16C Industry Specifications The entire production and inspection process of this petroleum drilling hose fully complies with API 16C industry specifications for oilfield choke and kill hoses. The specification puts forward clear and standardized requirements for product pressure resistance, structural stability, fire resistance, abrasion performance and fatigue resistance. All finished hoses undergo professional factory tests including hydrostatic pressure holding test, cyclic pulse fatigue test, surface abrasion detection and fire resistance simulation test. Multi-size standardized production ensures consistent structural performance and dimensional stability of products, facilitating unified installation, inspection and later maintenance of oilfield engineering projects. 3. Integrated Fireproof and Abrasion Resistant Structural Design This API 16C drilling hose adopts a multi-layer composite vulcanization structure with differentiated functional configuration to adapt to complex oilfield working conditions. The inner rubber layer is made of high-quality oil and corrosion resistant rubber materials, which can resist long-term erosion of drilling mud, crude oil, well killing fluid and other petroleum media, reducing the risk of inner wall corrosion and medium leakage. The middle high-strength reinforcement layer stably bears system working pressure and relieves structural deformation caused by pressure fluctuation and mechanical vibration. The outer protective layer adopts modified rubber formula with fire retardant and wear-resistant additives, which effectively reduces surface damage caused by on-site dragging, friction and impact, and restricts flame spread in case of accidental high temperature and open fire on site, improving the overall operation safety of drilling pipelines. 4. Multi-Size Specification Matching for Diversified Drilling Pipeline Layout The product supports complete multi-size specifications, covering conventional and conventional non-standard calibers required for petroleum drilling, which can meet the layout requirements of different pipeline nodes of drilling systems. Smaller sizes are suitable for auxiliary branch pipelines and control fluid conveying lines of drilling rigs, with flexible pipe body to adapt to narrow equipment installation spaces. Medium sizes apply to mainstream main circulation pipelines of conventional onshore drilling and well control systems, balancing fluid delivery efficiency and pipeline laying flexibility. Larger sizes are matched with large-scale offshore platforms and high-flow drilling main pipelines to reduce fluid transmission resistance. All sizes follow unified API 16C structural and process standards to ensure stable overall matching performance. 5. Stable High-Pressure Bearing and Anti-Fatigue Performance Drilling fluid pipelines are often affected by instantaneous pressure surges and frequent alternating pressure during equipment startup and stratum changes. The reinforced structure of the API 16C rotary drilling hose is optimized for oilfield dynamic working conditions. It can maintain stable pipe shape under long-term cyclic pressure and mechanical vibration, lowering the probability of bulging deformation and interlayer delamination. The integrated vulcanization process enhances the bonding tightness between rubber layers and reinforcement structures, effectively coping with repeated bending and swinging during drilling operation, and reducing pipeline failure risks caused by fatigue damage. 6. Wide Application and Flexible On-Site Assembly This fire-resistant and wear-resistant drilling hose is widely applicable to onshore oil and gas drilling, offshore platform exploitation, well repairing operation, fracturing and acidizing construction and other petroleum engineering scenarios. It is mainly used for the transmission of drilling mud, well killing fluid, crude oil and other industrial fluids. All specifications are compatible with common oilfield supporting accessories such as hammer unions and flange connectors, supporting on-site cutting and targeted assembly according to actual laying length. The product is designed for convenient daily inspection and maintenance, which can effectively reduce the later operation cost of oilfield projects.