Home > Product > Ball Valve > Ball Valves Based on Functionality
Not all ball valves function the same way—even if they look identical. At Perfect Engineers, we help you choose the right valve not just by size or material, but by how the internal ball operates under pressure.
Whether you’re working in high-pressure gas systems or CIP cleaning lines in a pharma plant, understanding functionality types like Floating Ball, Trunnion Mounted, Fire-Safe, or Cavity-Filled Valves will ensure better safety, performance, and process efficiency.
Ball valve functionality refers to how the ball inside the valve reacts to line pressure, and how it is mounted or sealed. This affects:
Description:
A single, compact casting that houses the ball and seats. It is non-serviceable, meaning it cannot be opened for maintenance or repair.
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Description:
Made with two separate body parts bolted or threaded together. The second piece can be removed to access the ball and seats.
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Description:
Consists of three parts—two end caps and a central body—held together with bolts. The valve can be fully dismantled for cleaning or maintenance without removing it from the pipeline.
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Description:
Allows access to internal components (ball, seat, seals) from the top of the valve body, like a globe valve.
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| Type | Pressure | Cost | Best Use Area |
|---|---|---|---|
| Floating Ball | Low–Med | 💰 | Utility, water, chemicals |
| Trunnion Mounted | High | 💰💰💰 | High pressure gas, large valves |
| Fire-Safe Valve | Any | 💰💰 | Hazardous media, oil & gas |
| Anti-Static Valve | Any | 💰💰 | Flammable or solvent-based fluids |
| Cavity-Filled Valve | Any | 💰💰💰 | Sanitary, viscous, sticky media |
Floating Ball Valve – Used in a 3” chilled water system for fast shut-off
Trunnion Mounted Valve – Installed in a 10” refinery gas line with electric actuator
Fire-Safe Valve – Installed in diesel storage tank outlets (API 607 certified)
Anti-Static Valve – Used in paint circulation systems in auto plants
Cavity-Filled Valve – Used in sugar syrup transfer lines at food processing plant
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Not necessarily, but they are more torque-efficient and better suited for automation.
No. Fire-safe valves are for hazardous, flammable media only.
No. Anti-static prevents sparks. Fire-safe prevents leaks during fire.
They eliminate dead zones where bacteria or residue can build up
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