Iron Globe Valve

An iron globe valve is a type of valve used to control the flow of liquids and gases in a pipeline. It consists of a spherical body made of cast iron, a stem, and a disc that can be rotated to open or close the valve. The stem connects the disc to a handle or actuator, which is used to control the flow through the valve. Iron globe valves are typically used in industrial settings, such as power plants and chemical plants, due to their durability and ability to withstand high pressure and temperature. They are also commonly used in heating, ventilation, and air conditioning systems.

The working of an iron globe valve is based on the movement of a disc inside the spherical body of the valve. The disc is attached to a stem, which is connected to a handle or actuator. When the handle is turned, the stem and disc move vertically, either opening or closing the valve.

When the handle is turned to the open position, the disc moves away from the valve seat, creating a gap through which the fluid can flow. The size of this gap can be adjusted by turning the handle to different positions, allowing for precise control of the flow rate.

When the handle is turned to the closed position, the disc moves towards the valve seat, sealing off the flow of fluid through the valve. The tightness of the seal is determined by the pressure of the fluid and the force exerted by the disc on the seat.

Advantages of Iron globe valve:

  • Easy to operate
  • Easy to maintain
  • It can be used in a wide range of applications
  • The disc of the valve can be adjusted to a different position

Disadvantages of Iron globe valve:

  • If not maintained properly, the valve seat may become worn and start to leak
  • It is not suitable for use in extremely high temperature

Application of Iron globe valve:

  • Power plants
  • Chemical plants
  • HVAC system
  • Oil and gas industry
  • Water treatment plants
  • Marine and shipbuilding

Parts of Iron globe valve:

  • Body
  • Disc
  • Stem
  • Handle
  • Gasket
  • Bonnet
  • Yoke
  • Screws, nuts, and bolts

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