I. Product Overview
The grooved non-rising stem gate valve features a compact design that combines a non-rising stem structure with grooved-end connections. The stem remains concealed within the valve body and does not move during operation. It is threaded to the gate, which moves vertically inside the body to open or close the valve. Grooved rings on both ends of the valve body allow for quick pipe connection using grooved couplings—no welding or threading is required.
This valve is suitable for media such as clean water, oil, and neutral fluids. It operates under temperatures ≤80℃ and working pressure ≤1.6 MPa, making it ideal for water supply and drainage systems, fire protection networks, industrial circulating water, and municipal pipelines. Its compact non-rising stem design saves installation space, while the grooved connection supports fast construction, making it especially suitable for confined or space-sensitive installations.
II. Product Features
• Non-Rising Stem Design: The stem is hidden inside the valve body and remains stationary during gate movement. This compact structure minimizes space usage, making it ideal for underground pipelines, equipment interlayers, and other tight installation environments.
• Grooved-End Connection: Enables fast and reliable pipe connection using grooved couplings, eliminating the need for welding or threading. Installation and disassembly are convenient, and the sealing performance is stable—perfect for rapid construction and future maintenance.
• External Position Indicator: Equipped with an external indicator (such as a dial or pointer) to visually display the valve’s open/closed status. This compensates for the non-rising stem’s lack of direct visibility and facilitates real-time monitoring of valve operation.
• Precision Sealing Structure: The gate and seat feature a machined flat-sealing surface paired with media-resistant sealing materials. When closed, the seal is tight and reliable, effectively preventing fluid leakage and maintaining system pressure stability.
• Durable Materials: The valve body is made of ductile iron with anti-corrosion treatment for excellent rust resistance. The stem and gate are made of high-quality alloy steel, with lubricated threaded drive components for wear resistance and anti-seizing performance—ensuring long-term reliability in demanding conditions.
• Efficient Flow: When fully open, the gate is completely lifted, providing a smooth flow path with minimal resistance. This ensures strong flow capacity and efficient fluid transmission. Manual operation is standard (with optional electric actuator), offering moderate torque and smooth control for quick adjustment.
• Compact and Versatile: The valve combines the visual clarity of external indicators, the convenience of grooved connections, and the tightness of precision sealing. Its balanced performance and broad applicability make it suitable for a wide range of civil and industrial pipeline systems.
III. Main Standards
Design, performance, and installation of the valve comply with the following national and industry standards:
• GB 5135.11-2019 – Automatic Sprinkler System – Part 11: Grooved Pipe Fittings • GB/T 12234-2019 – Steel Gate Valves for Petroleum, Petrochemical, and Related Industries • GB/T 13927-2008 – Industrial Valves – Pressure Testing
Specific technical parameters, performance indicators, and installation guidelines should be based on the product’s factory-issued technical documentation.
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