What is Groove Resilient Seated Gate Valve (Non-rising Stem)
The grooved, non-rising stem, resilient seated gate valve is a commonly used industrial valve, widely applied in water supply and drainage, fire protection, construction, petroleum, chemical, food, and pharmaceutical industries. Below, we will examine its basic structure and characteristics.
Structural Features
The grooved, non-rising stem, resilient seated gate valve mainly consists of a valve body, valve cover, valve stem, sealing ring, and packing. The valve body is typically made of cast iron or stainless steel and features concave grooves for installation and securing in pipelines. The valve cover is tightly connected to the valve body and has a flange for easy connection to other equipment. The valve stem is the main component for opening and closing; it is bolted to the valve body and features a guide sleeve to ensure precise positioning. The sealing ring is located at the bottom of the valve to prevent media leakage. The packing fills the space between the valve stem and the valve cover, providing a seal.
Working Principle
When the gate valve needs to be opened or closed, manual or mechanical force rotates the valve stem, thereby moving the valve disc. The opening or closing of the valve disc changes the flow area of the flow channel, thus regulating the flow rate of the medium. Because of the elastic seat beneath the valve disc, it can compensate for dimensional changes caused by temperature variations or other factors, ensuring the valve's sealing performance.
Advantages
Grooved resilient seated gate valves with non-rising stems offer several advantages: First, they have excellent sealing performance, effectively preventing media leakage; second, they have a compact structure, occupy little space, and are suitable for various working conditions; third, they are simple to operate and easy to maintain; and finally, they are relatively economical.
Application Areas
Grooved resilient seated gate valves with non-rising stems are widely used in the following areas:
1. Water supply and drainage systems: Used to control the flow of media such as tap water, sewage, and rainwater.
2. Fire protection systems: Used in fire pump rooms, fire hydrants, and other fire-fighting water supply systems.
3. Building water supply systems: Used in water supply systems for residential buildings, commercial buildings, hotels, and other buildings.
4. Petrochemical systems: Used to transport media such as petroleum, natural gas, benzene, and alcohols.
5. Food and pharmaceutical systems: Used to transport pure media required in the production processes of food, beverages, and pharmaceuticals.
Precautions
When using grooved, non-stick, resilient-seated gate valves, the following precautions should be taken:
1. Regular inspection and maintenance: Promptly identify and resolve any wear, leakage, or other problems to ensure the normal operation and safety of the valve.
2. Avoid exceeding the rated pressure: Before use, confirm the valve's applicable pressure range to avoid damage caused by overpressure.
3. Correct installation: Ensure the valve is securely connected to the pipeline to prevent loosening due to vibration or pressure changes.
4. Cleaning: Clean the valve regularly to prevent the accumulation of dirt that could affect its sealing performance.
5. Freezing prevention: If the valve is installed in a low-temperature environment, take appropriate insulation measures to prevent freezing damage.
Groove Resilient Seated Gate Valve (Non-rising Stem) in stock
