Pilot-operated safety valve (also known as pulse-type safety valve) is a safety valve that relies on the discharge of medium from the pilot valve to drive or control the main valve. The pilot valve itself is a standard spring-loaded safety valve. Safety valves are automatic valves, mainly used in boilers, pressure vessels and pipelines. The control pressure does not exceed the specified value, whi…

The Y-type filter is a necessary filter equipment for the use of hydraulic control valves and precise mechanical products that are easy to block. It is an indispensable device for the pipeline series for conveying the medium. It is usually installed at the inlet end of the hydraulic control valve, pressure reducing valve, pressure relief valve, fixed water level valve and other equipment to elimin…

Forged steel check valve has two body cover connection design forms: one is the body cover bolted forged steel check valve, the valve designed according to this connection form, the valve body and the valve cover are connected by bolts, wound gasket The advantage of sealing is that it is easy to maintain; the second type of forged steel check valve with full welding seal on the body cover, the val…

Do you know the common classification of electric butterfly valve? Electric butterfly valve belongs to a variety of electric valve and electric regulating valve. The main connection methods of electric butterfly valve are: flange type and wafer type; the main sealing forms of electric butterfly valve are: rubber seal and metal seal. The electric butterfly valve controls the opening and closing of …

The electric ball valve has the action of rotating 90 degrees, and the cock body is a sphere with a circular through hole or channel passing through its axis. The main features of the electric ball valve are its compact structure, reliable sealing, simple structure and convenient maintenance. The ball valve in the pipeline is mainly used as an electric ball valve to cut off, distribute and change …

The pneumatic knife gate valve simply uses a pneumatic actuator to control the valve, so as to realize the opening and closing of the valve. Pneumatic knife gate valve is a valve driven by compressed air, which can be divided into upper and lower parts, the upper part is a pneumatic actuator, and the lower part is a valve. The opening and closing part of the pneumatic knife gate valve is the gate,…

We all know that the high-efficiency filter is mainly used for the terminal filtration of various filtration systems. It can effectively filter out various suspended particles of 0.5 microns and above, and the purification efficiency is better. Not only that, the high-efficiency filter also has the advantages of low resistance and large filtration capacity. In the actual production environment, hi…

Lengthened butterfly valves are widely used in: chemical, petrochemical, petroleum, papermaking, mining, electric power, liquefied gas, food, pharmaceutical, water supply and drainage, municipal, mechanical equipment, electronic industry, urban construction and other fields.…