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Vacuum Pumps
Vacuum Pumps
Vacuum Pumps
Price : ₹100
Vacuum pumps are mechanical devices that remove gas or air molecules from a sealed volume to create a partial or high vacuum. They are categorized by their operating principles—primarily positive displacement, momentum transfer, and entrapment.
Vacuum Pump Types and Mechanisms:
Vacuum pumps are chosen based on the required vacuum depth (rough, medium, or high) and the presence of lubricant.
- Rotary Vane Pumps: The most common type, using rotating vanes to trap and compress gas. These are widely used in laboratories, HVAC servicing, and automotive braking.
- Diaphragm Pumps: These use a flexible diaphragm to create suction without oil, making them ideal for clean-room, medical, and food applications.
- Liquid Ring Pumps: Use a rotating ring of liquid (usually water) as a seal. They are highly resistant to dust and common in chemical processing and pharmaceutical production.
- Dry Screw and Scroll Pumps: Oil-free designs that provide high-speed pumping for sensitive industrial environments like semiconductor manufacturing.
- Momentum Transfer (High Vacuum): These include diffusion and turbomolecular pumps, which use high-speed jets or blades to move molecules. They require a secondary "backing pump" to start operating from atmospheric pressure.
Key Properties and Characteristics:
- Pumping Speed & Capacity: Defined by the volume of gas removed over time, with high-performance pumps offering high suction power for industrial applications.
- Vacuum Range: Classified into low , medium, high, and ultra-high.
- Operating Principle: Generally categorized into positive displacement pumps (e.g., rotary vane, screw) that physically move gas, or kinetic pumps (e.g., diffusion) that accelerate gas.
- Dry vs. Wet Operation: Dry pumps eliminate oil, reducing contamination, while oil-sealed (wet) pumps offer superior lubrication, sealing, and durability.
- Structural Design: Often feature symmetrical rotors for low vibration, small, compact, and robust construction suitable for harsh environments.
- Environmental Resistance: Some, like liquid ring pumps, are designed to handle condensable vapors or dust.
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2 Reviews
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