• Utilizes double gate bidirectional elastic sealing, offering flexible, rapid, and reliable opening and closing.
• Employs rubber sealing and water double sealing, completely isolating the system from the atmosphere and ensuring excellent system tightness.
• Internal connecting parts of the valve are made of stainless steel, ensuring durability and a long service life.
• Uses high-performance packing with extremely low friction resistance, self-lubricating properties, and resistance to gas and various corrosive gases, providing flexible operation and reliable sealing.
• The valve bottom is equipped with a drain ball valve, which allows cleaning of the valve cavity during drainage and facilitates the removal of impurities accumulated in the valve body along with the water.
• Typically installed vertically; please specify if there are special requirements.

Purpose

This series of valves features excellent self-sealing performance and is equipped with an external injection system. When closing the valve, water or nitrogen can be injected into the valve cavity through the injection system, isolating the medium and ensuring the system is completely sealed from the atmosphere. This series of valves is installed on various clean gas pipelines, such as coal gas, liquefied gas, natural gas, and mine gas, serving as shut-off devices. They are primarily used in coal gas distribution networks in industries such as coal gasification, metallurgy, coking, and chemical processing. This series of valves combines flexible and rigid sealing properties, achieving the functionality of both a butterfly valve and a blind plate valve. These valves must not be used for flow regulation.