Screwed Ball Float Valve

Screwed Ball Float Valve

Best Description of Screwed Ball Float Valve

A Screwed Ball Float Valve is a mechanical level control device used to regulate the inflow and outflow of water or other non-corrosive fluids in tanks, reservoirs, and cisterns. This valve operates using a hollow float ball attached to a lever arm that rises and falls with the liquid level, opening or closing the valve accordingly.

Unlike traditional float valves, the screwed-typeconnection allows easy installation and maintenance. These valves are typically made of brass, bronze, stainless steel, or gunmetal and are ideal for both domestic and industrial fluid-level management systems. They ensure automatic water level control without the need for electrical components, making them reliable, cost-effective, and durable.

Top 10 FAQs About Screwed Ball Float Valve

1. What is a Screwed Ball Float Valve?
   It is a mechanical valve that uses a ball float to control liquid levels in tanks by opening or closing the valve as the level changes.
2. Where is it used?
   Commonly used in water tanks, overhead reservoirs, cooling towers, boilers, and process tanks.
3. How does it work?
   As the fluid level rises, the float lifts, which gradually shuts off the valve. When the level falls, the float drops and opens the valve to allow refill.
4. What materials are these valves made from?
   They are typically made from brass, bronze, stainless steel, or gunmetal for corrosion resistance and strength.
5. What are the types of connections available?
   They are mainly available in screwed (threaded) type connections—BSP/NPT standards.
6. Can it be used for hot water?
   Yes, provided the valve is made from temperature-resistant material like stainless steel or bronze.
7. What are the available sizes?
   Typically available from ½” to 2” BSP/NPT threaded sizes, but larger industrial models are also available.
8. Is it suitable for high-pressure applications?
   Yes, high-pressure variants are available with reinforced seats and heavy-duty designs.
9. Is maintenance required?
   Minimal maintenance is required—just periodic cleaning of the seat and float ball if used in hard water conditions.
10. Is it suitable for chemical tanks?
    Only if made from or lined with corrosion-resistant materials like stainless steel or Teflon-coated versions.

Applications of Screwed Ball Float Valve

• Domestic Water Tanks: Automatic level control in overhead and underground water tanks.
• Cooling Towers: Controls water replenishment in industrial cooling systems.
• Boilers and Condensate Tanks: Maintains appropriate water levels for safe operation.
• Agricultural Irrigation Tanks: Regulates water level in storage and feed tanks.
• Fire Water Tanks: Ensures full tanks for emergency use in sprinkler systems.
• Rainwater Harvesting Systems: Prevents overflow by shutting off inlet during full capacity.
• Industrial Process Tanks: Controls chemical or water levels in mixing or storage systems.

Features of Screwed Ball Float Valve with Their Uses

Advantages of Using Screwed Ball Float Valve

• Energy-free operation – no electricity needed
• Reliable and leak-proof performance
• Cost-effective solution for water level control
• Suitable for both fresh and slightly aggressive fluids
• Long operational life with low maintenance
• Fast response to fluid level changes

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