Application and structural characteristics of elastic metal hard sealing butterfly valve

The elastic metal sealing butterfly valve is a national key new product. The high-performance elastic metal sealing butterfly valve adopts a double eccentric and a special inclined cone elliptical sealing structure. It solves the disadvantage that the sealing surface of the traditional eccentric butterfly valve is still in sliding contact friction at the moment of opening and closing 0°~10°, and realizes the effect that the sealing surface of the butterfly plate is separated at the moment of opening, and the sealing is closed when the contact is closed, so as to prolong the service life and achieve the best sealing performance. good purpose.

use:

It is used for gas pipelines in the sulfuric acid industry: the inlet and outlet of the blower in front of the furnace, the inlet and outlet of the relay fan, the series and connection valves of the electric demister, the inlet and outlet of the S02 main blower, the adjustment of the converter, the inlet and outlet of the preheater, etc. and the use of cut-off gas.
It is used for sulfur incineration, conversion and dry suction in the sulfuric acid system. It is the preferred brand of valves for sulfuric acid plants. It is considered by the majority of users as: good sealing performance, light operation, secondary corrosion, high temperature resistance, convenient operation, Flexible, safe and reliable butterfly valves have been widely used.
It is also widely used in: SO2, steam, air, gas, ammonia, CO2 gas, oil, water, brine, lye, seawater, nitric acid, hydrochloric acid, sulfuric acid, phosphoric acid in chemical, petrochemical, smelting, pharmaceutical, food and other industries It is used as a regulating and shut-off device on pipelines such as medium.

Structural features:
①The unique design of three-way eccentricity enables frictionless transmission between the sealing surfaces and prolongs the service life of the valve.
②Elastic seal is produced by torque.
③The ingenious wedge-shaped design enables the valve to have the automatic sealing function of closing and tightening, and the sealing surfaces have compensation and zero leakage.
④Small size, light weight, light operation and easy installation.
⑤Pneumatic and electric devices can be configured according to user requirements to meet the needs of remote control and program control.
⑥The material of replacement parts can be applied to various media, and can be lined with anti-corrosion (lining with F46, GXPP, PO, etc.).
⑦Continuous structure diversification: wafer, flange, butt welding.