Globe valve,also known as stop valve, cut-off valve, is a forced sealing industrial valve, so when the globe valve is closed, some pressure should be applied to the valve disc to force the sealing surface not to leak.
When the media enters the valve body from the bottom of the disc, the resistance that the operating force needs to overcome is the friction between the valve stem and packing and the thrust generated by the pressure of the medium. The force to close the globe valve is greater than the force to open the globe valve, so the diameter of valve stem of the globe valve must be larger, otherwise the valve stem may be bent.
According to different body material used, globe valve can be divided into cast iron globe valve(GG25 globe valve, CI globe valve), ductile iron globe valve(DI globe valve, GGG40 globe valve), cast steel globe valve( carbon steel globe valve, cs globe valve), stainless steel globe valve(SS globe valve).
Today we are going to introduce the DIN 3356 cast iron globe valve GG25 flanged:
Valve type: globe valve/stop valve
Nominal diameter: DN15-DN200
Manufacturing and design standard: DIN3356
Valve Body material: GG25 cast iron
Valve Shaft: stainless steel
Valve Disc: stainless steel
Valve seat: stainless steel
Operating: manual hand wheel
Media: water, steam, oils, corrosive media,etc
Cast iron globe valve uses: cast iron globe valves are widely used in water supply and drainage, gas, electric power, metallurgy, petroleum, chemical industry, textile and urban construction industries.
Working principle of cast iron globe valve:
Various industrial valves are playing an important role in cutting off and throttling the medium in the pipeline. As an extremely important cut-off valve, the DIN 3356 cast iron globe valve GG25 flanged is sealed by applying torque to the valve stem, and the valve stem moves upward in the axial direction. The disc of the cast iron globe valve exerts pressure to make the sealing surface of the disc closely fit with the sealing surface of the valve seat of the cast iron globe valve, preventing the medium from leaking along the gap between the sealing surface.
The sealing pair of the cast iron globe valve is composed of the sealing surface of the disc and the sealing surface of the valve seat. The valve disc of the cast iron globe valve is driven by the valve stem to move vertically along the center line of the valve seat.
During the opening and closing of the cast iron globe valve flanged, its opening height is small, the flow rate is easy to adjust, and the manufacturing and maintenance of cast iron globe valve are convenient, and cast iron globe valve flanged can be used for working pressure PN10, PN16 and PN25.
Belo Valve is one Chinese direct factory supplier for DIN 3356 cast iron globe valve GG25 flanged, with DN15-DN200, PN10 and PN16, for more data about that DIN 3356 cast iron globe valves, please contact our sales: