The exhaust valve is a crucial component in pipeline systems, widely used in boilers, HVAC systems, oil and gas, and water supply and drainage networks. It is typically installed at high points or bends to remove excess air from the system, thereby improving flow efficiency and reducing energy consumption. In most cases, the ARSX/ARSH series exhaust valves contain approximately 2VOL% of dissolved air in the water. As water flows through the pipeline, this air gradually separates and accumulates at the highest point, forming an air pocket that can significantly reduce the system’s efficiency by up to 5–15%. The primary function of the exhaust valve is to eliminate this dissolved air, making it ideal for installation in high-rise buildings, industrial piping, and small pumping stations to enhance system performance and promote energy savings. The SIMPLE LEVER TYPE micro-exhaust valve features an elliptical body with all internal components—such as the float ball, lever, lever frame, and valve seat—made of 304 stainless steel. It has an internal exhaust port of 1/16", suitable for use in environments with a maximum working pressure of PN25. Main specifications: - Nominal diameter: DN15–DN25 - Nominal pressure: PN10, PN16, PN25 The CARX series compound exhaust valve is designed with a cylindrical body containing a set of stainless steel balls, float arms, and a poppet. Installed at pump outlets or in water distribution pipelines, it effectively removes large amounts of trapped air or discharges small pockets of air at high points, improving pipeline and pump efficiency. Additionally, when negative pressure occurs in the pipe, the valve quickly draws in outside air to prevent damage. Operating principle: When the pipeline is being filled with water, the poppet remains open to release air. As water fills the valve, the float rises, closing the poppet and stopping the air release. During normal operation, if a small amount of air accumulates, the water level drops, causing the float to descend and allowing air to escape through a small hole. When the pump stops, the pipeline may become empty or experience negative pressure, prompting the valve to open and draw in air to maintain system integrity. CARX series single-ball compound exhaust valve (for clean water): - Pressure rating: PN10 - Nominal diameter: DN25–100mm (DN25 is threaded; others are flanged) CARX series separate compound exhaust valve (for clean water and sewage): - Pressure rating: PN10 - Nominal diameter: DN250–300mm CARX series double-ball compound exhaust valve (for clean water): - Pressure rating: PN10 - Nominal diameter: DN250–300mm The SCAR series sewage composite exhaust valve operates on the same principle as the clean water version but includes structural modifications to handle wastewater. The valve body is extended, and the lever mechanism is adjusted so that dirt settles at the bottom without interfering with the exhaust process. Main specifications: - Pressure rating: PN10 - Nominal diameter: DN50–200mm These exhaust valves play a vital role in maintaining efficient and reliable fluid transport systems across various industries.

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