Screwed Gate Valve

Product Name & Standards Screwed Gate ValveCompliant with API 600, ASME B16.34, and ANSI B16.11 standards. Core Definition A 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).