The parallel double gate valve developed by our company is a product which absorbed foreign technology and self-designed successed product. Different transmission modes have been developed at present, such as manual transmission, bevel gear transmission, pneumatic transmission and electric transmission. 
    Z6F4 Pneumatic Parallel Double Gate Trigger Valve Series is a fast cut-off valve with pneumatic transmission mode. It is a high-tech product. Ever the valve product has won Wenzhou Science and Technology Progress Award and has obtained many national patents. Patent No. are: 90216801.0、200720040555.4、200920185112.3、201120079093.3.
    The product is reliable. It is suitable for emergency cut-off or discharge of gas and liquid medium pipeline. It can work safely and reliably under high temperature, high pressure, explosion-proof, anti-corrosion and other environmental conditions. It has been widely used in petroleum, chemical industry, electric power, metallurgy, textile, oil depot and military industry. With the continuous improvement in structure and performance in more than 20 years of production, continuous integration of new technologies to improve product quality and performance, the market is expanding day by day. With good service, it has gained the trust and praise from users. It has been rated as a provincial famous brand product.
    The valve has been inspected by the inspection center designated by the General Administration of Quality Supervision, Inspection and Quarantine, and has the license of the People's Republic of China for manufacturing special equipment (pressure tube components).