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.

Concealed stem resilient seat seal gate valve ductile iron shell, valve body and valve cover material for ductile iron, corrosion resistance, valve seat and valve body overall casting molding; flat bottom runner, valve open gate rises away from the runner, the bottom of the valve seat without grooves, not easy to build up debris, and the same as the straight pipeline, low resistance to flow; rubber gate, rubber will be wrapped around the skeleton, the cast iron and the media isolation, corrosion-free, rubber soft sealing, and the skeleton bonded to the overall hot vulcanization molding. Vulcanization molding;

Concealed stem resilient seated gate valve integral copper nut, gate nut and skeleton overall connection, no movement of the empty stroke and send off phenomenon; gate guide system, the valve body and gate with a guide system; stainless steel corrosion-resistant valve stem, reduce the operating torque, long service time; double of the push bearings (concealed stem DN ≤ 300), stem neck with double of the push bearing, inverted stem so as not to be washed out by the water pressure; stem axial sealing (concealed stem), three O-ring sealing ring, the valve stem is sealed (concealed stem), the stem is sealed with a rubber sealing ring. ), three O-ring seals, axial self-sealing under water pressure, preventing external impurities from entering the shaft seal.