API 16c Choke Manifold and Kill Manifold
1. The choke manifold is an essential device for mastering well pressure control technology. It meticulously manages the pressure, ensuring pressure equilibrium inside the well, thereby preventing overflow and blowout scenarios;
2. Achieve a gentle shut-in process through the precise pressure release of the choke valve, safeguarding the well mouth with open flow;
3. Our choke line is meticulously crafted to adhere to strict API 16C and NACE MR0175 Standards, guaranteeing quality and performance;
4. We offer customization with specially designed choke lines crafted to meet your specific requirements and needs.
5. In the event of a choke valve malfunction, it is crucial to close the upper and lower valves and engage the lower valve of an alternate choke valve to continue operations seamlessly;
6. For open flow operations, open the flow valve and close the inlet valve of the drilling liquid-gas separator to maintain optimal safety and efficiency;
7. The choke manifold utilizes the choke valve's throttling effect to control the well, replace contaminated drilling fluid, manage casing and standpipe pressures at the well mouth, and restore well bottom pressure, effectively curbing overflow incidents;
8. The choke valve's pressure relief function is instrumental in reducing well mouth pressure, facilitating a 'soft shut-in' to maintain safety;
9. By utilizing the straight flow valve for the substantial release of liquid (or gas), casing pressure at the well mouth is efficiently lowered, providing robust protection for the well mouth blowout preventer unit.
Working temperature: -29~121ºC; ensuring robust performance in varied environments;
Product specification level: no less than PSL3; epitomizing superior standard compliance;
Material grade (valve, joint): EE-FF; reflecting top-tier durability and strength;
Working medium: mud, petroleum, natural gas; versatile in handling diverse substances effectively.
The API 16c Choke Manifold and Kill Manifold are pivotal well control systems utilized in the dynamic fields of oil and gas extraction. These sophisticated devices are engineered to expertly manage overflow and mitigate blowout risks, thereby supporting near-balanced pressure drilling. The throttle manifold plays a critical role in controlling casing pressure, maintaining optimal pressure equilibrium within the well, and safeguarding the wellhead through strategic pressure and blowout relief. Meanwhile, the well-killing manifold is imperative for safety, injecting well-killing fluid into the well to prevent accidents, ensuring secure operations, and facilitating effective well-killing procedures.
Our products are meticulously designed and crafted in strict accordance with API 16C specifications, ensuring top-tier quality and reliability.
Structural Form: Choose from flexible options including single wing, double wing, multi-wing, or an integral type to best suit your operational needs.
Control Mode: Experience versatility with manual, hydraulic, or remote control options, achievable through a customizable control cabinet.
Base Type: Opt for a double-layer multi-stage lifting type or a skid-mounted type to address your structural requirements efficiently.




Hebei Qinglin Rubber & Plastic Products Co., Ltd. stands as a beacon of innovation in the high-tech manufacturing realm. Nestled in the heart of Jing County, Hengshui City, Hebei Province, China, our expansive factory spans a remarkable 30,000 square meters, with a meticulously designed 18,000 square meter production workshop. Our dedicated team of 198 employees, including 96 individuals holding college degrees and 8 distinguished senior engineers, propels our success. We specialize in crafting an extensive array of flexible hoses and hydraulic accessories. Our product lineup includes hydraulic hoses, air hoses, steam hoses, chemical hoses, wear-resistant mud & cement hoses, composite hoses, drilling hoses, flexible choke & kill lines, BOP control hoses, high-pressure cleaning hoses, stainless steel metal hoses, compensators, and a wide variety of unions and quick couplings. Additionally, we offer drilling rig accessories, well control accessories, mud system accessories, rubber sheets, rubber waterstops, waterproof rubber, and an array of various joints and seals. We also provide customized processing for diverse rubber products. Our products make a significant impact across numerous industries, including oil fields, chemical plants, coal mines, industry, aerospace, shipbuilding, metallurgy, mining and dressing, construction, electric power, water power, medicine, food, and more.
With over two decades of expertise, our factory is a vanguard in the production of high-strength hoses. Our high-strength hoses are ingeniously designed to incorporate the most suitable inner material structure, reinforcing structure, and outer sheath structure tailored to distinct operating environments and conveying mediums. Our commitment to excellence is supported by a comprehensive suite of internationally advanced high-pressure heavy hose and hydraulic accessories production equipment and rigorous inspection apparatus. Our dedication to quality is evidenced by our certifications, including ISO9001, ISO14001, OHSAS18001, API SPEC 16C, and API SPEC 7K.
Proudly, we serve as a trusted supplier to industry giants such as CNPC, CNOOC, CRCC, ANT, ONOIL, SCHLUMBERGER, WEATHERFORD, and DYNAPAC. Our steadfast commitment to integrity and quality has earned us esteemed recognition as a contract-respecting and trustworthy entity. The exceptional quality of our products and the unparalleled service level of our company have garnered widespread acclaim from our valued customers.





