scope of application: elastic seal gate valves is particularly suited to the potable water system, food and pharmaceutical industry, industrial water supply and drainage and sewage treatment, such as natural gas and natural gas. Soft-sealing gate valve can be widely used in tap water, sewage, construction, petroleum, chemical, food, and medicine. , light textile, electric power, shipbuilding, metallurgy, energy systems and other fluid pipeline. Structural features: soft-sealing gate valve at the bottom of the whole flow straight through design, no stagnation cavity structure, to ensure that the fluid is fluent, no secondary pollution to media. Complete coverage of the shutter gate QT500 - coated with high-performance rubber and nodular cast iron 7 skeleton. Mature vulcanization technology and advanced vulcanization technology will completely isolated gate iron core and fluid. Closely reliable coating, bonding strength can meet the demands of DVGW. Even experienced frequent tension, the rubber will not fall off. Stem nut and gate catamaran structure to ensure enough degrees of freedom, and the opening and closing is flexible and not get stuck. Between the stem and the top of the upper seal USES a total of five 'internal 3 external 2' 'O' type sealing ring structure. Compared with traditional packing seal structure of gate valve, sealing closely, reliable and greatly reduce the friction resistance. The corrosion resistance of shell ( Ductile iron QT500 - 7) With internal and external surfaces of the epoxy resin powder electrostatic spraying. Uniform coating and firm, not exposed iron. The middle cavity with top of bolt connection, to seal bolt and the environment, to prevent corrosion.

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cast iron gate valve rising stem gate valve are primarily used for resilient seal gate valve.