ANUGRAHA VALVE CASTINGS LIMITED
Coimbatore, Tamil Nadu
Industries: Marine, Industrial Machinery
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What is a globe valve?
A stem moves a disc toward or away from a seat set across the flow path, so the opening can be set finely. The flow turns through the valve, which makes the pressure drop higher than in a gate or ball valve but gives good control and a tight shut-off. Globe valves are made in bronze, cast iron, carbon steel and stainless steel, and are common on steam, feed-water and process lines.
Globe Valve or gate valve?
A globe valve controls flow well and seals tightly but has higher flow resistance. A gate valve gives a clear bore with low resistance and suits full open or full closed use, but is not meant for throttling.
What to specify when you ask for a quote
- Size, pressure class and end connection.
- Body, disc and seat materials for the fluid and temperature.
- Direction of flow marked on the body, and whether it is stop, angle or Y pattern.
- Stem type, packing and the sealing arrangement.
- Design and test standard and the leakage class.
- Certificates, and the availability of repair kits and spares.
Where it is used
- Oil & GasThrottling and isolation in process lines.
- Industrial MachinerySteam and utility service.
- Water TreatmentFlow control in water lines.
Frequently asked questions
Why does flow direction matter on a globe valve?
The body is marked with an arrow showing the correct direction. Installing it backwards can affect sealing, wear and how easily the valve opens, so follow the marking.
Is a globe valve better than a ball valve for throttling?
Generally yes. A globe valve is designed to control flow with stable operation, whereas a ball valve’s seats can wear if it is held partly open.
What is an angle or Y-pattern globe valve?
They are variations of the body shape. An angle valve turns the flow through a right angle, and a Y pattern reduces pressure drop. The choice depends on piping layout and flow needs.
How do I maintain a globe valve?
Check and tighten or replace the stem packing, inspect the seat and disc for wear and keep the stem clean and lubricated. Repair kits are available for most designs.