Summary:
Soft seal gate valves are commonly used in conjunction with hydraulic systems and are widely found in water treatment plants, sewage facilities, and other industrial applications. These valves are typically made from cast iron, ductile iron, or cast steel, and they are usually flanged. They are generally categorized into two types: bright stem and dark stem. It's important for customers to be aware of this distinction. One of the key features of soft seal gate valves is their sealing performance, which plays a critical role in their functionality and application.
Soft Seal Gate Valve Specification Manual:
1. The operating end of a soft seal gate valve should be square-shaped and standardized, positioned facing the ground so that it can be easily operated from the surface. Valves with rising stems are not recommended for underground piping systems.
2. If the soft seal gate valve is installed deep underground, and the distance between the operating mechanism and the control panel from the ground is greater than or equal to 1.5 meters, an extension rod must be installed and securely fixed. This allows for easy access and operation from the surface. In other words, operations inside the pipeline network should not be performed from below ground level.
3. Since pneumatic valves in the pipeline are often manually operated, the number of rotations required for opening and closing should be kept reasonable—ideally within 200–600 revolutions, even for larger diameter valves.
4. To ensure ease of operation for personnel, the maximum torque required to open or close the valve under pipeline pressure should not exceed 240 N-m.
5. The direction of operation for a soft seal gate valve should follow a clockwise closing motion.
Evaluation of a Vertical Valve: The soft seal gate valve has an elegant appearance, often painted in a standard blue color. Compared to other types of valves, it is more affordable and belongs to the general-purpose valve series. It is a reliable choice for many industrial applications due to its cost-effectiveness and durability.
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