Common Knowledge Of Sanitary Manual Butterfly Valve.
May 14, 2020| Manual butterfly valve introduction:
The butterfly plate of the butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis with the rotation angle between 0 ° and 90 °. When it rotates to 90 °, the valve is in full open state.
Structural features:
1. Lock hole is set at the fully open and fully closed position of the valve to prevent misoperation of non staff.
2. Step shall be set at the lower part of the valve rod to prevent the abnormal rise of the internal pressure of the valve from coming out of the valve rod.
3. A fire-resistant sealing ring is arranged between the ball body and the valve seat, which still has the sealing effect after the valve seat is burnt.
4. Quick switch, flexible opening and closing, long service life, safe and reliable.
5. Pneumatic and electric ball valves can be controlled remotely and centrally, and can meet the requirements of computer program control.
Industrial use:
It is used for gas pipeline in sulfuric acid industry; inlet and outlet of blower in front of furnace, inlet and outlet of relay fan, electric demist series and connecting valve, inlet and outlet of S02 main blower, converter regulation, inlet and outlet of preheater, etc. to regulate and cut off gas volume.
The incineration flow, transformation and dry absorption section used in the sulfur based sulfuric acid system is the first brand of valves used in the sulfur based sulfuric acid plant, which are considered by the majority of users as follows: butterfly valves with good sealing performance, light operation, vice corrosion resistance, high temperature resistance, convenient operation, flexibility, safe and reliable use, have been widely used.
It is also widely used in: S02, steam, air, gas, ammonia, CO2 gas, oil, water, brine, alkali, sea water, nitric acid, hydrochloric acid, sulfuric acid, phosphoric acid and other medium pipelines in chemical, petrochemical, smelting, pharmaceutical, food and other industries as regulating and intercepting devices.
Structural features:
1. The unique design of three-way eccentricity makes the friction free transmission between sealing surfaces and prolongs the service life of the valve.
2. Elastic seal produced by torque
3. The cuneiform design makes the valve have the function of automatic sealing which is closer and tighter. There is compensation and zero leakage between sealing surfaces.
4. Small volume, light weight, light operation and easy installation.
5. According to the user's requirements, pneumatic and electric devices can be configured to meet the needs of remote control and program control
6. The material of replacement parts can be applied to various media, and the lining can be anticorrosive (lining F46, gxpp, Po, etc.)
Continuous structure diversification: clamp, flange, welding.