DELCO 304/316L Manual Vacuum Ball Valve, Negative Pressure Resistant Manual Valve for Industrial Vacuum Pipeline Isolation & Control

Ball valve characteristics for vacuum applications

• Vacuum ball valves can be actuated manually, electrically, or pneumatically and are available in materials such as brass, stainless steel, or plastic, with options for 2-way or 3-way ports.

• Known for their durability and reliability, ball valves can withstand thousands of operational cycles with little to no maintenance.

• Ball valves are quarter-turn valves that rotate 90° from open to closed positions, making them fast-acting. When connected to a pneumatic actuator, they can achieve the full 90° rotation in less than a second.

• The hollow ball within the valve is held in place by a seat, typically made of Teflon, which provides a positive shut-off seal when there is a pressure difference across the valve. This design allows ball valves to open at high-pressure differences without a pressure-balancing mechanism.

• They can operate at sub-zero temperatures and are available in compact sizes, which is advantageous for vacuum applications requiring smaller valves.

• The hollow, straight-through design of ball valves ensures no flow resistance.