Soft seal gate valve is a replace ment products for traditional gate valve. It uses resilient disc to produce a samll amount deformation compensation to achieve a good sealing effect. It has the advantages of integral encapsulation, corrosion resistance, not easy breakage, good elasticity memory and long service life. It is widely used in tap water, sewage, construction, food, electricity, medicine, metallurgy, textile, energy systems and other fluids pipeline as a regulator and shutoff device.