In the chemical and petrochemical industries, butterfly valves play a critical role in precisely controlling the flow of chemical substances while enhancing process safety and efficiency. Butterfly valves designed with chemical resistance, high pressure tolerance, and reliability are essential components tailored to meet the demands of various chemical processes. Jeongdo Machinery is committed to providing optimally designed and manufactured valve solutions to address these requirements.

Fugitive Emissions (option)
Jeongdo Machinery’s butterfly valves are engineered to help clients in the chemical and petrochemical sectors mitigate fugitive emissions, protecting workers, the environment, and overall operational integrity. Our valves are designed and certified to comply with or exceed global emission standards, including ISO 15848-1 and TA LUFT. Through continuous R&D and testing, we ensure compliance with the most stringent international standards on volatile emissions.

Anti-blowout (option)
To further enhance safety and durability, Jeongdo Machinery offers an anti-blowout stem design as an option. This feature prevents the valve stem from being ejected due to internal pressure surges or external mechanical shocks—particularly critical in high-pressure or hazardous fluid systems.
The anti-blowout design incorporates a stem flange or shoulder that mechanically restrains upward movement, ensuring the stem remains securely in place. This design significantly improves the valve’s reliability and operational safety.

Jeongdo Machinery’s butterfly valves are manufactured in accordance with major international standards such as API 609 and ASME B16.34, and their anti-blowout design ensures stable performance even under high-temperature and high-pressure conditions.

As a result, Jeongdo Machinery delivers high-reliability valve solutions that combine safety, durability, and performance—making them a trusted choice in a wide range of industrial environments.