Posts

Showing posts from July, 2021

What is the Structure of the Lug Butterfly Valve?

Image
As a   Wafer Butterfly Valve Manufacturer , share with you. The driving mode of the lug type butterfly valve can be manual, worm gear, pneumatic, electric, the connection mode can be flange, butt clamp, the structure can be single eccentric, center line, double eccentric, triple eccentric, and the sealing structure can be soft seal or hard. Sealed, the pressure range is PN0.1-10Mpa, the nominal diameter is DN40~2000mm, and the material can be cast steel or stainless steel. The driving mode of the lug type butterfly valve can be manual, worm gear, pneumatic, electric, the connection mode can be flange, butt clamp, the structure can be single eccentric, center line, double eccentric, triple eccentric, and the sealing structure can be soft seal or hard. Sealed, the pressure range is PN0.1-10Mpa, the nominal diameter is DN40~2000mm, and the material can be cast steel or stainless steel. Due to the wide range of use of valves, the same valve has different collocations on different occasions

What Occasions is Butterfly Valve Suitable for?

Image
As a   Flange Butterfly Valve Supplier , share with you. Butterfly valves are suitable for flow regulation. Since the pressure loss of the butterfly valve in the pipeline is relatively large, the robustness of the butterfly plate to withstand the pressure of the pipeline medium when it is closed should also be considered. In addition, it is necessary to consider the limitation of the working temperature that the elastic valve seat material can withstand at high temperatures. The structural length and overall height of the butterfly valve are small, the opening and closing speed is fast, and it has good fluid control characteristics. The structural principle of the butterfly valve is most suitable for making large-diameter valves. When the butterfly valve is required to control flow, the most important thing is to correctly select the size and type of the butterfly valve so that it can work properly and effectively. DIN3202 Flange Butterfly Valve Generally, in throttling, regulating con

Rubber Flap Check Valve

Image
Rubber Flap Check Valve Rubber Flapper Swing Check Valves  feature a unique, simple design with only one moving part. The flapper does not swing from a hinge pin; it simply flexes open. The seat is on a 45° angle. The flapper travels 35° from open to closed, usually before column reversal can occur. It has non-slam characteristics. The valve requires no regular maintenance. Recommended for water, sewage, gas, oil and rubber lined for chemicals. Feature of Rubber Flap Check Valve Due to the inclined design of the sealing ring of the rubber flap check valve, the closing time is short and the water hammer pressure can be reduced. The valve flap is made of nitrile rubber and steel plate after being pressed at high temperature. It is resistant to erosion and has good sealing performance. The product structure is simple, maintenance, repair, transportation is very convenient. It is mainly applied to oil, chemical, food, medicine, textiles, paper making, water supply and drainage, smelting an

The Working Principle of the Check Valve

Image
Check Valve   refers to the valve that automatically opens and closes the disc depending on the flow of the medium itself to prevent the medium from flowing back, also known as check valve, one-way valve, reverse flow valve and back pressure valve. The check valve is a kind of automatic valve, its main function is to prevent the back flow of the medium, prevent the pump and the drive motor from reversing, and the discharge of the container medium. Check valves can also be used to supply pipelines where the pressure of the auxiliary system may rise above the system pressure. Check valves can be divided into swing check valves (rotating according to the center of gravity) and lift check valves (moving along the axis). The function of this type of check valve is to only allow the medium to flow in one direction and prevent the flow in the opposite direction. Usually this kind of valve works automatically. Under the action of the fluid pressure flowing in one direction, the valve flap open