How the needle valve works
Cut-off valve, also called sectional door, is a widely used type of valve. Its popularity is due to the small friction between the sealing surfaces in the process of opening and closing. It is relatively durable, has a small opening height, is easy to manufacture, and is easy to maintain. Not only for medium and low pressure, but also for high pressure.
The principle of closure of the shut-off valve is to rely on the pressure of the valve rod so that the sealing surface of the valve flap and the sealing surface of the valve seat fit closely and prevent the flow of the medium.
The cut-off valve can only allow the medium to flow in one direction and has directionality when installed. The structural length of the cut-off valve is greater than the gate valve, and the fluid resistance is large. In long-term operation, the sealing reliability is not strong.
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LED underwater light, is mounted on the bottom, a simple means is installed under the bottom of the lamp, small and exquisite, elegant appearance, appearance is similar to some buried lights, more than just a installation chassis, the chassis is screwed.
Because LED underwater light is used below the bottom, need to absorb a certain amount of pressure, so usually adopt stainless steel material, 8-10 mm toughened glass, high quality waterproof connector, silicon rubber sealing ring, arc angles of refraction strengthened glass, waterproof, dustproof, prevent leakage and corrosion.
LED underwater light for LED light source, commonly known as the fourth generation of lighting source or green light source, energy saving, environmental protection, long life, small volume, etc.Electricity, it can send out a variety of colors, colorful, usually in a park or fountain pool.
Led Underwater Light,Waterproof Led Underwater Light,Led Mini Underwater Pool Light,Mini Led Underwater Light
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