Dark rod elastic seat seal gate valve using structural design, materials, internal parts are gate easy to rust, rubber elastic fatigue easy to aging and other defects, good sealing performance, light operation, simple and convenient maintenance, long service life. Applicable to domestic water system, water supply and drainage system, sewage system, chemical fluid transportation system, etc., in the construction, urban, petrochemical, food, metallurgy, textile, electric power and other industries in the fluid pipeline as a cut-off device.

Manual knife gate valve is a new structure of the valve, divided into soft seal and hard seal, soft seal with movable seat and replaceable rubber ring composition, can achieve good sealing requirements. Branch knife gate valve is suitable for horizontal installation, also tilt installation, suitable for syrup, pulp, sewage, coal slurry, ash, dust, slag and water mixtures and other media pipeline, can be used as a medium to cut off and throttling, is widely used in papermaking, industrial and mining, sewage, chemical industry, food field.

Pneumatic knife gate valve has a wide range of applications, from mining, power plant coal, gangue, slag discharge, to the city's sewage treatment; from cement, paper mills, slurry transportation, to food, health, medicine and other professional pipelines. Ultra-thin design knife gate valve with its small size, light weight, small obstruction of flow, no accumulation of slag, easy to install, easy to dismantle the advantages of a complete solution to the common gate valves, flat gate valves, ball valves, globe valves, regulating valves, butterfly valves and other valves of the obstruction of flow, occupying space, easy to accumulate slag, not easy to install and repair and other difficult problems. Therefore, a large number of general cut-off type valves and regulating valves are replaced by knife gate valves.