Products Details

Soft seal gate valve is a kind of automatic sealing valve relying on medium pressure, and its sealing surface is made of stainless steel and cemented carbide, which has a long service life. The valve has the advantages of compact structure, reasonable design, unhindered channel and small medium flow resistance. The valve plate of the soft seal gate valve can be an integral rigid valve plate or an elastic valve plate to adapt to different processing deviations.
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Soft seal gate valve models Z41T-10 and Z41W-10 are suitable for water, steam and oil media, respectively, their nominal diameters range from DN50 to DN600 mm, nominal pressure is PN1.0MPa, applicable temperature does not exceed 200℃. The body material is usually gray cast iron, the connection form is flange connection, the design specification follows GB/T 12234, the structural length is in accordance with GB/T 12221, the connection flange follows JB/T 79 standard.
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In addition, the stem of the soft seal gate valve is designed as an integral rising lever wedge gate valve, which can be operated manually, pneumatic, electric or geared. The packing of the valve stem is selected with flexible graphite, which ensures the reliability of the seal and the flexibility of the operation.
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Another soft seal gate valve model Z45X, suitable for water medium, nominal diameter from DN50 to DN400 mm, nominal pressure from PN1.0 to PN2.5MPa, operating temperature range from 0 to 120℃. The valve has a chameless construction, epoxy coating on the inside and outside surfaces of the body and bonnet, and rubber covering of the valve plate surface, which fundamentally eliminates the possibility of corrosion. The seal of the valve stem does not use packing, but uses an "O" ring, which improves the reliability of the seal. Depending on the need, the valve can be operated by levers, hand wheels, electric and pneumatic.
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The design features of the soft seal gate valve include the whole rising rod valve cover design and compact structure; Valve stem nut and two ram structure, no blocking phenomenon; Through the design, no leakage space; The stem is sealed with an "O" ring. The valve has excellent corrosion resistance, the shell and outer surface are coated with epoxy, and the inner surface is coated with enamel if necessary; The bolts are hex bolts with plastic sealing at the top. Hygienic epoxy meets hygienic standard GB/T17219-1998, the whole rubber covered by the valve plate meets hygienic inspection; The stem, stem nut and other components are made of stainless steel or bronze, which are resistant to water corrosion.
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The soft seal gate valve has stable sealing performance and long service life, and is suitable for regulating and cutting devices in various fluid pipeline systems. The design overcomes the poor seal, leakage and corrosion of the general gate valve, and saves the installation space more effectively. In addition, the inner chamber of the valve is coated with non-toxic epoxy resin to prevent corrosion and rust, not only for drinking water, but also for sewage systems. The stem has three "O" seals for low friction resistance, light switching operation and no water leakage.
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The imported soft seal gate valve, also known as the elastic seat seal gate valve, uses a special rubber to wrap the gate plate as a whole, and realizes the seal of the valve through the elastic deformation of the rubber to achieve the effect of zero leakage. There is no gate slot in the valve chamber, it is not easy to retain debris, the resistance is minimal, and the switch is lightweight. The use of three "O" sealing ring, reliable sealing, unique design structure makes the "O" ring can be replaced under pressure, no pressure disc, easy maintenance. Both inside and outside the valve body are electrostatic sprayed with non-toxic epoxy resin, which will not produce rust water and meet the requirements of direct drinking water. Soft seal gate valves are widely used in tap water, sewage, construction, petroleum, chemical industry, food, medicine, textile, electric power, shipbuilding, metallurgy, energy systems and other fields.
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The product features of the soft seal gate valve include no gate slot in the valve chamber, and the fluid is unimpeded; The valve plate is rubber coated, corrosion resistant; Reliable sealing, using three "O" type sealing ring, light switch; The O" ring can be replaced with pressure without water shutdown. The embedded copper nut is tightly combined with the valve plate and will not loosen or fall off; The valve body adopts precision casting process to ensure the sealing of the valve.
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In terms of technical parameters, the nominal pressure of the imported soft seal gate valve is 1.0MPa(10kgf/cm²) and 1.6MPa(16kgf/cm²), the nominal diameter is from 32mm to 500mm, and the applicable temperature is not more than 120℃, which is suitable for water, oil, gas and other non-corrosive fluids. The driving methods include manual and electric, and are widely applicable, including urban water supply and drainage network, high-rise buildings, residential communities, landscaping, petroleum, residential heating, power plants, environmental protection and other industries.
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In terms of materials, the valve body is made of gray cast iron or ductile cast iron, the gate material includes gray cast iron, ductile cast iron, NBR, EPDM, HTV, etc., the valve cover and handwheel are also made of corresponding cast iron materials, the valve stem is stainless steel, the sealing sleeve and the valve stem nut are brass, the sealing ring material is NBR and HTV, etc.
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The dimensional diagram provides detailed dimensions of soft seal gate valves with different nominal diameters, including structural length, height from the center of the valve chamber to the top of the handwheel, flange and bolt specifications, and reference weight.