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Costa-Rica Double eccentric flange type telescopic butterfly valve
Product Description
Double eccentric flanged telescopic butterfly valve is my company following the double eccentric flanged butterfly valve, telescopic and other products on the basis of the development of new products. Its structure is novel and easy to install and use, and it is the replacement product of the old pipeline transformation, maintenance and supporting valves.
Double eccentric flange type telescopic butterfly valve characteristics;
1. It integrates the functions of double eccentric flange butterfly valve and telescopic device, which is very convenient for installation and maintenance.
2. The seal between the telescopic tube and the valve body adopts a wedge-shaped sealing ring, which has reliable sealing performance and can ensure zero leakage.
Double eccentric flange type telescopic butterfly valve used in petrochemical, food, medicine, textile, paper, water and electricity, ships, water supply and drainage, smelting and other systems, all corrosive, non-corrosive gas, liquid, semi-fluid and solid powder pipelines and containers for regulation and closure.
Double eccentric flanged telescopic butterfly valve, as a component used to realize the on-off and flow control of pipeline system, has been widely used in many fields such as petroleum, chemical industry, metallurgy, hydropower and so on. The butterfly plate of the telescopic butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical passage of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, and the rotation angle is between 0 ° and 90 °. When rotating to 90 °, the valve is fully open. This valve is generally installed horizontally.
Double eccentric flange telescopic butterfly valve technical advantages introduction;
1, small and light, easy to disassemble and repair, and can be installed in any position.
2. The structure is simple and compact, the operating torque is small, and the 90-degree rotation opens quickly.
3, flow characteristics tend to be straight, good regulation performance.
4. The connection between the butterfly plate and the valve stem adopts a pin-free structure to overcome possible internal leakage points.
5, the seal can be replaced, and the seal is reliable to achieve two-way sealing.
6. The butterfly plate can be sprayed with coating according to user requirements, such as nylon or PTFE.
7. The valve can be designed as flange connection and clamp connection.
8. The driving mode can be selected manually, electric or pneumatic.
Double eccentric flange telescopic butterfly valve is in the fully open position, telescopic butterfly valve plate thickness is the main obstacle to the media pressure loss, so the pressure drop generated by the valve is very small, it has good flow control characteristics. Telescopic butterfly valve with elastic seal and metal seal two types of sealing. Elastic sealing valve, the sealing ring can be embedded in the valve body or attached to the periphery of the butterfly plate.
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