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Check Valve
Check valve refers to a valve whose opening and closing parts are circular discs and rely on its own weight and medium pressure to generate action to block the back flow of the medium. It is an automatic valve, also known as check valve, one-way valve, return valve or The main function of the isolation valve is to prevent the medium from flowing back, to prevent the pump and the drive motor from reversing, and to discharge the container medium.
The movement mode of the disc of the check valve is divided into lift type and swing type. The lift check valve is similar in structure to the shut-off valve, but lacks the valve stem that drives the disc. The medium flows in from the inlet end (lower side) and flows out from the outlet end (upper side). When the inlet pressure is greater than the sum of the weight of the disc and its flow resistance, the valve is opened. On the contrary, the valve is closed when the medium flows back. The swing check valve has a disc that is inclined and can rotate around the axis, and the working principle is similar to that of the lift check valve.
The check valve is often used as the bottom valve of the pumping device to prevent the backflow of water. The combination of check valve and stop valve can play a role of safety isolation. The disadvantage is that the resistance is large and the sealing performance is poor when closed.
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CARX Composite Exhaust Valve
CARX composite exhaust valve is the most commonly used exhaust valve, which is combined and improved on the basis of floating ball and floating ball lever exhaust valve. CARX composite exhaust valve uses floating ball lever type exhaust device for micro exhaust under pressure state; it uses floating ball type exhaust device for first water filling or a large number of intake and exhaust under other conditions, which can increase the size of intake and exhaust port and greatly improve the intake and exhaust speed. Milestone Valve Co. Ltd. is a professional valve manufacturer and a high-tech enterprise integrating industry and trade. Its valves are not only widely used in China, but also exported to many foreign markets.
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Compound Exhaust Valve
Compound exhaust valve is a kind of floating ball exhaust valve made by Bernoulli's theory, which can keep fully open under the air flow. When the solid water column rises, the floating ball can float immediately and close the exhaust port tightly. Compound exhaust valve adopts a specific diameter of floating ball, so that the aerodynamic force generated by it can keep the floating ball open when the air flows through, and the buoyancy generated when the solid water column rises can make it float again. With a cone at an appropriate angle at the inlet, the exhaust port will not be blocked no matter how high the air pressure or the air velocity.
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Composite Exhaust Valve
Composite exhaust valve is a barrel shaped valve body, which mainly contains a group of stainless steel balls, rods and plugs. Composite exhaust valve is installed at the pump water outlet or in the water supply and distribution pipeline to remove a large amount of air accumulated in the pipeline, or a small amount of air accumulated at a higher place of the pipeline is discharged into the atmosphere, so as to improve the service efficiency of the pipeline and the pump Valve quickly inhales outside air to protect the pipeline from damage caused by negative pressure.
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Quick Exhaust Valve
Quick exhaust valve is based on the buoyancy characteristics of water on stainless steel floating ball When the water level in valve rises, the floating ball will automatically float up under the buoyancy of water until it is connected with the sealing surface of the exhaust port. When the water level in valve decreases, the ball will drop with the water level. At this time, a large amount of air will be injected into the pipe through the exhaust port. After being installed on the pipe, the ball will automatically open / close the exhaust valve by using the inertia of water to the floating ball Air port.
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Horizontal Check Valve
Horizontal check valve is also called check valve, which prevents the medium from flowing back in the pipeline. Horizontal check valve that opens and closes by the medium flow and force is called check valve to prevent the medium from flowing backward. Check valve belongs to automatic valve, mainly used in the pipeline of medium flow in one-way way, only one direction of medium is allowed to flow, so as to prevent accidents.
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Silent Check Valve
Silent check valve is mainly composed of valve body, valve seat, guide body, valve disc, bearing, spring and other main parts. Streamline design is adopted for internal passage to minimize pressure loss. The valve disc has a very short starting and closing stroke, which can be quickly closed when the pump is stopped to prevent huge water hammer sound, and has the characteristics of silent closing
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Durable Check Valve made in China can be specially customized from Milestone. Our factory is one of China Check Valve manufactures and suppliers in China. We can assure you that high quality Check Valve has one year warranty and passed CE certification. You don't worry about our price, we can give you our price list. When you see the quotation, you will find the price is cheap. Because our factory supply is in stock, you can buy the bulk of it with low price. We can also provide you with free samples. Looking forward to working with you.
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