Product Name & StandardsScrewed Gate ValveCompliant with API 600, ASME B16.34, and ANSI B16.11 standards.
Core DefinitionA manually operated flow control valve engineered with a stem and handwheel, designed to regulate the flow of liquids or gases. It features full-flow capacity and rapid shut-off functionality, available in a wide range of materials and sizes. Its simplified structural design makes it a cost-effective and versatile solution for numerous industrial, commercial, and residential applications.
Structure & Working Principle
- Key Components: Threaded valve body, flat gate disc, valve stem, and manual handwheel.
- Operating Mechanism: Rotating the handwheel drives the valve stem to vertically raise (valve open) or lower (valve closed) the gate disc—when fully open, the disc retracts to allow unobstructed full flow; when closed, it forms a tight seal for quick shut-off.
- Connection Method: Screwed (NPT/BSPP) ends for secure, leak-tight integration with threaded pipelines, facilitating straightforward on-site installation.
Performance Advantages
- Full-flow capability: When fully open, the gate disc provides minimal flow resistance, ensuring efficient fluid transmission.
- Rapid shut-off: Precision-machined gate disc and valve seat enable quick, reliable flow termination.
- Versatile compatibility: Available in diverse materials (carbon steel, stainless steel, brass) and sizes, adapting to different media and piping requirements.
- Cost-effective & durable: Simplified design reduces manufacturing costs while maintaining structural reliability, offering long service life with low maintenance needs.
- Easy manual operation: Intuitive handwheel control requires minimal effort, suitable for scenarios without automated systems.
Key Specifications
- Pressure Rating: PN10 – PN250 / Class 150 – 1500.
- Operating Temperature: -29℃ – 425℃ (carbon steel body) / -196℃ – 550℃ (stainless steel body).
- Body Materials: Carbon Steel (A105), Stainless Steel (304L/316L), Brass (ASTM B16).
- Gate Disc Material: Stainless Steel (304L/316L), Brass (for low-pressure applications).
- Sealing Material: PTFE (Polytetrafluoroethylene), Metal-to-Metal sealing (for high-temperature/high-pressure use).
- Connection Type: Screwed (NPT/BSPP) – compatible with standard threaded pipelines.
- Size Range: 1/4” – 2” (common threaded valve sizes for general-purpose flow control).
Application Fields
- Industrial Systems: Low-to-medium pressure pipelines, oil & gas distribution, chemical processing auxiliary lines, and instrumentation piping.
- Commercial Infrastructure: Commercial building plumbing, HVAC systems, municipal water/gas supply branches, and fire protection auxiliary pipelines.
- Residential & General Use: Home water/gas lines, small-scale heating systems, DIY plumbing projects, and rural water supply networks.
- Specialized Scenarios: Applications requiring manual flow control, full-flow capacity, and cost-effective solutions (e.g., small-bore process lines, maintenance shut-off valves).