Kinko Gate Valves: API 6D Standard, Fire-Safe Tested & Approved

API 6D Compliance: The Gold Standard for Pipeline Valves

API 6D, established by the American Petroleum Institute, is the authoritative international standard for pipeline valves, governing design, manufacturing, assembly, testing, and documentation严苛 requirements. Kinko Gate Valves strictly adhere to this standard, covering pressure ratings from Class 150 to Class 2500 (PN 20 to PN 420) and a wide temperature range of -196°C to 538°C, making them adaptable to diverse extreme working conditions from deep-sea oil extraction to high-temperature refining processes.

Every Kinko Gate Valve undergoes 100% shell testing at 1.5 times the rated pressure and seal testing at 1.1 times the rated pressure, in full compliance with API 598 Appendix A standards. The valve body is crafted from high-quality materials such as ASTM A216 WCB and A352 LCC, with metal-to-metal hard seals (e.g., tungsten carbide/stainless steel) that ensure API 598 Class IV leakage performance, effectively resisting corrosion from H₂S-rich sour media and extending service life to over 100,000 cycles. This comprehensive compliance not only serves as a "passport" for global market access but also guarantees long-term reliable operation in critical pipeline systems.

Fire-Safe Tested & Approved: Reliable Protection in Emergencies

Fire safety is a non-negotiable requirement for valves in flammable and explosive environments. Kinko Gate Valves have successfully passed rigorous fire safety tests in accordance with API STD 6FA-2018 standards, which mandate that valves maintain effective sealing for 30 minutes of fire exposure—providing crucial time for emergency response and disaster mitigation.

The fire-safe design of Kinko Gate Valves incorporates multiple protective measures: the metal hard-seal structure remains intact even at high temperatures, avoiding seal failure caused by non-metallic material melting; the valve stem's anti-blowout design prevents ejection under extreme pressure; and the integral fire-resistant coating slows down阀体 deformation. Test data confirms that after 30 minutes of fire exposure, the leakage rate of Kinko Gate Valves is far below the acceptable limit specified by the standard, effectively blocking the spread of flammable media and minimizing accident losses.

Widely Applied in Key Industrial Scenarios

With API 6D compliance and fire-safe certification, Kinko Gate Valves are widely used in core pipeline systems across high-risk industries:

• Oil & Gas Industry: Applied in wellhead devices, long-distance pipelines (e.g., cross-border natural gas pipelines), and refinery hydrocracking units, handling high-pressure, high-temperature, and corrosive media;

• Energy Sector: Used in thermal power plant steam pipelines and LNG storage and transportation systems, adapting to extreme temperature and pressure fluctuations;

• Chemical Industry: Employed in acid-base medium transportation pipelines and hazardous chemical storage tank outlets, ensuring safe isolation and cut-off;

• Marine Engineering: Suitable for offshore oil platform pipelines, resisting corrosion from seawater and harsh marine environments.

A large oilfield in Southeast Asia adopted Kinko Gate Valves in its wellhead gathering system. During a pipeline fire accident, the fire-safe valves maintained effective sealing for 30 minutes, successfully preventing the spread of crude oil and reducing direct economic losses by over 80% compared to historical similar incidents. To date, the valves have operated stably for 4 years with zero safety accidents, verifying their reliable performance.

Kinko's Commitment to Safe & Reliable Solutions

Kinko deeply understands the critical role of valves in ensuring industrial safety. Beyond strict compliance with API 6D and fire-safe standards, we provide customized solutions based on customers' specific process parameters, medium characteristics, and working conditions. Our pre-sales technical team offers professional selection guidance, while the after-sales team provides 7×24-hour emergency support and on-site maintenance services, ensuring timely resolution of any operational issues.

For enterprises pursuing safe, compliant, and efficient pipeline operations, Kinko Gate Valves—with their API 6D standard compliance and fire-safe certification—are the trusted choice. Choose Kinko to build an impenetrable safety barrier for your pipeline systems and safeguard the stability of your production operations.

Ivan (Mobile:+86-18968769287)
          WhatsApp：+86-13579991606

Wechat:+86-18968769287

Website：www.kinko-flow.com
ZHEJIANG KINKO FLUID EQUIPMENT CO.,LTD