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Is the EPDM butterfly valve suitable for water medium?
EPDM rubber butterfly valve fully meets the water working conditions and is a kind of soft sealing butterfly valve. It has excellent weather resistance, ozone resistance, heat resistance, acid and alkali resistance, water vapor resistance, color stability, electrical properties, oil-filling properties and fluidity at room temperature. It can be used in ozone-resistant, weather-resistant, and ultraviolet-resistant […]
How to choose the material of flanged gate valve seat
The sealing surface of flanged gate valve is an important working surface for the valve to block the medium and control the fluid. The quality of the sealing surface determines whether the valve is guaranteed to have no internal leakage, impermeability and other direct influence factors, which can be said to determine the service life […]
Evolution of the Sealing Surface of the Triple Eccentric Butterfly Valve
The triple eccentric butterfly valve is one of the butterfly valves. Its unique sealing form and sealing structure are continuously improved and upgraded through the product to obtain a better sealing effect. There have been great reforms in high temperature and corrosion resistance. Let’s take a look at its product upgrade process. The butterfly valve’s […]
Two-way triple eccentric butterfly valve
The two-way hard-sealed butterfly valve is a valve product that has been developed rapidly in recent years. From the earliest centerline butterfly valve to the later triple eccentric sealing butterfly valve to the current triple eccentric two-way sealing structure, the hard sealing butterfly valve has greatly reformed and improved its own sealing performance. In the […]
Purchasing precautions for handle butterfly valves
When purchasing handle butterfly valves, it is not enough to only know the product specifications, categories and working pressure requirements, and it is impossible to achieve a good balance. Because different handle butterfly valve manufacturers have their own corporate standards and product personality, and some non-standard production to meet different customer requirements, it is unscientific […]
Instructions for the safe use of resilient seated flanged butterfly valves
The resilient seated flanged butterfly valve has the characteristics of small opening torque, flexibility and convenience, labor-saving and energy-saving. The sealing form of the soft seal has reliable performance and can achieve no leakage. Therefore, the use of flange soft-seal butterfly valve is very wide, and it has its presence in all major pipeline systems, […]
What is a triple eccentric metal seated butterfly valve
The triple eccentric metal seated butterfly valve is classified from the multi-level metal seated butterfly valve. Named because of the triple eccentricity structure. Its sealing performance is as good as the soft sealing butterfly valve, and it can maintain a good seal even in a high-pressure and high-temperature environment. It is often used for heating, […]
How to prevent the motor of electric flange butterfly valve from overloading
The torque and axial force of the valve electric actuator are limited, so usually the valve electric device uses a torque-limiting coupling. Most of the torque type is three-jaw connection or key connection, and the valve electric device does not bear the axial thrust. Most of the thrust type is threaded connection, which can bear […]
Common leakage problems and remedies of resilient-seated gate valves
The resilient seated flange gate valve is an updated product of the gate valve, because the gate plate is wrapped by elastic materials such as rubber or PTFE, or the valve seat is made of elastic material. In short, one of the valve seat and the valve plate can be regarded as soft seal. The […]
How to select electric actuator of the electric regulating butterfly valve
The valve electric actuator is an important driving force of the electric regulating butterfly valve, and its selection determines the actual on-site operation of the product. At the same time, the selection of electric actuators has some own selection criteria. Mainly from the operating torque, host structure, output shaft rotation, output speed, etc. to consider, […]