Electric Flange Gate Valve

The Electric Flange Gate Valve is a type of industrial valve controlled by an intelligent electric actuator, connected to pipeline systems via standard flange connections. It realizes the opening and closing or flow regulation of media by driving the gate to lift and lower, widely used in the on-off control of liquids, gases, slurries, and other media in industrial pipelines. With the core advantages of remote automatic control, adaptability to high pressure and large diameter, and stable sealing performance, it has become a key equipment for realizing automated control of media transportation in modern industrial systems.

Our product strictly complies with international standards such as API 600, API 6D, ASME B16.34, and ASME B16.5, ensuring compatibility with global pipeline systems and meeting the strict requirements of various industrial scenarios. Whether it is traditional heavy industry or emerging new energy fields, our electric flange gate valve can provide stable and reliable fluid control solutions.

1.Superior Sealing Performance : Adopts bidirectional metal-to-metal sealing or PTFE soft sealing design, with metal seal surface surfacing Stellite hard alloy for enhanced wear resistance and corrosion resistance, and soft seal achieving zero leakage (compliant with ISO 15848-1 certification). The pressure self-tightening seal or gasket sealing structure ensures safe and reliable operation, effectively preventing medium leakage and ensuring pipeline safety.

2.Intelligent Electric Actuation : Equipped with high-performance electric actuator, supporting remote control, local operation, and manual/electric switching, which can be integrated with PLC, DCS system through 4~20mA current input/output for intelligent control. It has torque control and position feedback functions, real-time displaying the gate position with an accuracy of ±1%, and automatically stopping and alarming when the valve is stuck to avoid equipment damage. The actuator has IP66/IP68 protection level, suitable for outdoor, humid, and harsh environments.

3.Robust & Durable Construction : The valve body is available in high-quality materials such as WCB carbon steel, CF8/CF8M stainless steel, WC9 chromium-molybdenum steel, and Hastelloy C-276, which can be selected according to different media and working conditions to ensure excellent corrosion resistance, high temperature resistance, and pressure resistance. The wedge-type elastic gate or double gate structure with universal joint can automatically adjust the fit between the gate and the valve seat, facilitating maintenance and ensuring sealing reliability.

4.High Compatibility & Easy Installation : Adopts standard flange connection compliant with ASME B16.5 and ISO 7005, supporting various flange sealing surfaces to meet the installation needs of different pipeline systems worldwide. The compact design, small volume, and light weight make installation and integration easy, saving space and construction costs.

5.Safety & Reliability : Equipped with built-in anti-static device to prevent static accumulation and reduce the risk of fire and explosion, suitable for flammable and explosive media occasions. Complies with API 607 fire-safe design, which can maintain sealing performance in case of fire to prevent medium leakage and ensure system safety. It also has a fail-safe function, supporting spring return or position retention in case of power failure to avoid safety accidents.

6.Low Flow Resistance & Energy Saving : When fully open, the gate is completely separated from the flow channel, with a flow resistance coefficient (Cv value) 1.5~2 times that of the same diameter butterfly valve, and the pressure loss is small, effectively reducing energy consumption of the pipeline system. The full-bore design is available for pigging operations in oil and gas pipelines, while the reduced-bore design can reduce the weight and cost of the valve.

- Oil & Gas Industry : Applied in oil and gas field exploration, gathering and transportation, refining, and long-distance pipeline systems (such as West-East Gas Pipeline IV), suitable for crude oil, natural gas, and other media transportation. It can withstand high pressure above 10MPa, high temperature above 350℃, and resist H₂S corrosion, with a sealing level up to API 6D SS (bubble level leakage). It is also applicable to underwater oil production trees and seabed pipeline connections in deep-sea oil and gas exploitation, withstanding water pressure at 1500 meters depth.

- Chemical &Coal chemical industry : Used in coal gasification furnace feeding systems, methanol synthesis towers, electrolyte transportation pipelines of lithium battery factories, and semiconductor etching gas pipelines. It can resist corrosion of strong acids, alkalis, and chemical media (such as HF), and adapt to high-pressure and high-temperature working conditions up to 25MPa and 650℃, effectively solving the problem of media erosion and pipeline blockage.

- Power Industry ：Suitable for thermal power plants, nuclear power plants, and solar thermal power plants. In thermal power plants, it is used in superheated steam pipelines, withstanding high temperature of 540℃; in nuclear power plants (such as Hualong One), it is used in reactor coolant systems, resisting radiation and ensuring safe operation. In solar thermal power storage systems, it is applied to molten salt storage tanks and heat transfer oil circulation pipelines, withstanding high temperature of 400℃ and molten salt corrosion.

- Municipal & Environmental Engineering ：Widely used in urban heating pipe networks, water supply and drainage projects (such as South-to-North Water Diversion Project), and sewage treatment plants. It can resist sediment wear and H₂S corrosion, with health level complying with GB/T 17219, effectively improving the efficiency of water treatment and heat supply, and reducing maintenance costs.

- New Energy & High-End Manufacturing ：Applied in hydrogen energy industry (vehicle-mounted hydrogen supply systems, hydrogen refueling stations), semiconductor wafer manufacturing, and new energy vehicle charging pile supporting systems. It meets the requirements of high pressure (up to 70MPa), high cleanliness (ISO 14644-1 Class 5), and wide temperature range, realizing localized substitution of imported products and reducing costs by 40%.

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