Gas Flat Gate Valve

Our Gas Flat Gate Valve is a sliding-type isolation valve with a parallel flat gate as the closing member, specifically designed for gas media (natural gas, city gas, liquefied petroleum gas, etc.). It is mainly used for full opening and full closing control in gas pipelines, not for flow regulation or throttling. With a scientific structural design, it effectively solves the problems of poor sealing, medium leakage, and easy corrosion of traditional gate valves, and its compact structure saves installation space while ensuring stable operation in harsh working environments.

We adhere to strict quality control throughout the production process, from material selection to finished product testing, to ensure that each valve meets international standards such as API 6D, ASME B16.34, and GB/T 12234, providing reliable product support for your gas transmission system.

1.Reliable Double Sealing Performance : Adopting floating valve seat and elastic soft sealing structure, the valve plate is fully coated with high-performance NBR synthetic rubber and integrally vulcanized, which can generate micro-adaptive elastic deformation under the action of operating force and medium pressure, forming an excellent sealing effect with the precision-cast valve seat. The four-way O-ring inverted sealing structure allows for pressure replacement of the seal in case of emergency without stopping the medium, ensuring zero leakage and maximum safety for gas transmission.

2.Low Flow Resistance & Energy Saving : Full-bore flat flow channel design, when fully open, the gate is completely separated from the flow channel, and the bottom of the valve seat has no grooves, which is not easy to accumulate debris, and the flow resistance is equivalent to that of a straight pipeline, effectively reducing pressure loss and energy consumption during gas transmission. It supports pipeline pigging, which is suitable for gas pipelines containing solid particles or dust impurities, ensuring unobstructed medium flow.

3.High Durability & Corrosion Resistance : The valve body and bonnet are made of high-strength cast steel, which is integrally precision cast without secondary machining, ensuring high structural strength and corrosion resistance. The valve stem is made of stainless steel with trapezoidal thread rolling processing, which is smooth and wear-resistant, effectively reducing operating torque and extending service life. The inner and outer surfaces of the valve are treated with non-toxic epoxy resin powder electrostatic coating, which has the same anti-corrosion life as the pipeline and can be used in harsh environments such as humidity and corrosion.

4.Easy Operation & Maintenance : The valve is available in both non-rising stem and rising stem designs, with multiple operation methods such as handwheel, T-handle, electric, and pneumatic, which can be selected according to actual needs, and the operation is light and flexible. The overall copper nut is integrally connected with the valve plate skeleton, without movement idle travel and loosening, and the bronze material realizes self-lubrication with the valve stem, reducing maintenance frequency. The replaceable valve seat and seal design make later maintenance more convenient and cost-effective.

5.Comprehensive Safety Protection : Equipped with a triple safety valve stem sealing system, including a dust-proof sealing ring, multiple O-ring seals, and a sealing gasket, which can effectively prevent external impurities from entering and medium leakage. The inverted valve stem design avoids being rushed out by medium pressure, and the double thrust bearing reduces wear and ensures stable operation. All specifications are equipped with integral cast double feet and double lifting rings, which are convenient for handling and storage, and improve the safety of installation and use.

- Municipal gas supply systems : Urban gas distribution pipelines, residential and commercial gas pipelines, ensuring safe and stable gas supply to users.

- Natural gas transmission and storage : Long-distance natural gas transmission pipelines, gas storage stations, gas processing plants, suitable for high-pressure and large-flow gas transmission need.

- Industrial gas systems : Gas pipelines in petrochemical, chemical, metallurgical and other industries, used for on-off control of various industrial gases.

- LPG/LNG systems : Liquefied petroleum gas and liquefied natural gas storage and transportation pipelines, adapting to low-temperature working conditions.

- Other fields : Gas pipelines in power plants, gas-fired boiler systems, and gas emergency repair projects, providing reliable isolation and control functions.

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