Stainless steel soft seal gate valve

不锈钢软密封闸阀is an industrial valve, whose core feature is that the gate is wrapped in elastic material as a whole, relying on the deformation of rubber or polytetrafluoroethylene to achieve sealing.Its main technical characteristics and applications are as follows:
1、 Core Structure and Material Characteristics
Sealing design
The gate is entirely covered with corrosion-resistant rubber (such as nitrile rubber), which forms a soft seal with the valve body through elastic deformation, achieving zero leakage, especially suitable for clean medium environments such as drinking water.
Valve body material
Usually cast with stainless steel materials such as 304 and 316L, it has strong corrosion resistance and is suitable for corrosive media scenarios such as chemical and sewage treatment.
Structural optimization
Flat bottomed valve chamber: No traditional gate slot design, avoiding impurity accumulation and ensuring smooth fluid flow.
Embedded copper nut: The valve plate is embedded with the nut to prevent loosening and detachment.
2、 Technical advantages
Sealing performance
Adopting three O-ring seals, supporting pressure replacement of seals, easy maintenance and high sealing reliability.
Easy to operate
The open rod structure, combined with trapezoidal thread transmission, has a small opening and closing torque and can be adapted to electric/pneumatic remote control.
Hygiene standards
The epoxy resin coating inside and outside the valve body meets the hygiene requirements for drinking water.
3、 Application scenarios
Water supply system: interception control of tap water and drinking water pipe network.
Industrial field: Corrosive medium pipelines such as petrochemicals, food and pharmaceuticals, and power metallurgy.
Wastewater treatment: Designed to resist impurity accumulation and adapt to sewage transportation pipelines.
4、 Key points for installation and maintenance
Installation direction
Usually installed horizontally, when installing vertically, it is necessary to ensure that the valve stem is vertically upward.
Operating standards
Models with bypass valves need to first open the bypass valve to balance the pressure difference.
The fully open position needs to be retracted by 1/2-1 circle to prevent temperature changes from jamming.
Maintenance requirements
Regularly lubricate the valve stem and packing gland to avoid excessive tightening and wear on the sealing components.