Products Details

Soft seal gate valve is widely used in water, sewage, construction, petroleum, chemical, food, medicine, textile, electric power, ship, metallurgy, energy system and other fluid pipeline adjustment and cut-off device. It uses the compensation effect of the elastic gate plate to achieve a good sealing effect through a small amount of deformation, overcomes the phenomenon of poor seal, leakage and rust of the general gate valve, and saves the installation space more effectively.
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The main features of the soft seal gate valve include:
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Integral rubber coating: With integral rubber coating, excellent coverage performance and precise geometry ensure reliable sealing and service life.
Lightweight design: The body is made of ductile iron for light weight and easy installation.
Flat bottom seat: Using the same flat bottom seat design as the water pipe, no fouling, sealing more reliable.
Corrosion resistance: The inner chamber of the gate valve is coated with non-toxic epoxy resin to prevent corrosion and rust, which can be used not only for drinking water, but also for sewage systems.
Triple "0" ring seal: The valve stem is sealed with triple "O" ring seal, with low friction resistance, light operation and no leakage.
In addition, there are various models of soft seal gate valves, such as Z45X type, nominal diameter from DN50 to 400mm, nominal pressure from PN1.0 to 2.5MPa, applicable medium is water, operation mode can be manual, electric, pneumatic, etc., flange standard is GB/T 17241.6GB9113, The test standard is GB13927 AP1598. The surface of the valve body and gate is coated with epoxy and rubber, which fundamentally eliminates the possibility of corrosion, and the stem seal uses an "O" ring to improve the reliability of the seal. Depending on the need, the valve can be operated by levers, hand wheels, electric and pneumatic. It is suitable for tap water, water supply and drainage, sewage treatment, natural gas and gas, industry and food industry.
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There is also Z41T type open rod wedge gate valve, which is an automatic valve that relies on medium pressure to press the gate sealing surface to the other end of the valve seat sealing surface, so that the two sealing surfaces are closely matched to ensure the sealing effect. The valve has the characteristics of compact structure, reasonable design, good rigidity of the valve, unblocked channel, low resistance of the medium, etc. The sealing surface is made of stainless steel and cemented carbide, long service life, diverse structure types, flexible graphite can be selected as the filler, reliable sealing, easy to operate and flexible, and the driving mode can be selected manual, pneumatic, electric, gear transmission and so on.
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The specifications and dimensions of the soft seal gate valve also have detailed standards, such as the caliber range of DN50 to DN600, the pressure level of PN6 to 25, in accordance with the design standards of CJ/T514, the main material is QT 500-7, WCB, the connection mode is flange type, PE pipe, butt welding, etc., the operation mode is manual operation.
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In addition, there are soft seal gate valves with full diameter design, which effectively eliminate pressure drop and vortex, and prevent solid material in the fluid from washing. The ram has an expansion structure for low torque operation and low loss during switching. A metal seal is used between the bonnet and the body, and a soft or metal seal can be used between the gate and the seat. The sealant injection through the injection valve can improve the sealing performance. The working medium includes oil, natural gas, mud and gases containing H2S and CO2, the working temperature range is -46°C to 121°C (LU class), the material grade includes AA, BB, CC, DD, EE, FF, HH, the specification grade is PSL1-4, and the performance requirement is PR1-2.
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Soft seal gate valve has been widely used in fluid pipeline system because of its advantages of light weight, reliable seal, good elastic memory and long service life.