Non-Rising Stem Gate Valve

Overview

A non-rising stem gate valve, also known as a hidden stem gate valve, is designed with a stem that does not move up or down when the valve is opened or closed. Instead, the gate moves up or down within the valve body, while the stem remains in the same position. This valve is commonly used in situations with limited vertical space, such as underground piping systems, as well as in industries such as water supply, sewage, oil, and gas.

Product Features:

1. Compact Design: The non-rising stem design makes this valve ideal for applications where vertical space is limited, such as in underground or confined installations. The stem remains stationary while the gate moves inside the valve body.
2. Wedge-Type Gate Structure: The valve features a wedge-type gate that ensures a tight and reliable seal when closed, making it suitable for isolating media in various industrial systems.
3. Corrosion-Resistant Stem: The valve stem is typically coated or treated to resist corrosion, ensuring a long service life, especially in environments where the valve is exposed to water or other corrosive media.
4. Easy Installation and Operation: Due to its compact structure, the non-rising stem gate valve is easy to install in tight spaces. The valve can be operated manually via a handwheel or can be equipped with electric or pneumatic actuators for automated control.
5. Wide Range of Materials: The valve body can be made from materials such as cast iron, carbon steel, stainless steel, and alloy steel, allowing it to handle various types of media, including water, steam, oil, gas, and chemical substances.
6. Suitable for Underground Applications: Its design is ideal for use in underground pipelines, as the stem does not extend outward, making it easier to protect and maintain the valve in such environments.
7. Compliance with Standards: The non-rising stem gate valve is manufactured in compliance with international standards such as ANSI, DIN, and JIS, ensuring high reliability and compatibility with other industrial components.
8. Minimal Maintenance: The simple and robust design ensures reliable performance with minimal maintenance, making it a cost-effective solution for many industrial applications.

Applications:

• Water Supply and Distribution Systems: Used in municipal water systems, irrigation, and building services where vertical space is restricted.
• Underground Piping Systems: Suitable for buried pipelines due to its non-rising stem, which eliminates the need for additional space above the valve.
• Oil and Gas: Employed in pipelines where space and corrosion resistance are crucial.
• Chemical Industry: Suitable for systems handling non-corrosive and slightly corrosive chemicals.