SS 316 Venturi Injector

The SS-316 Ozone Venturi Injector is a precision-engineered ozone injection component designed to efficiently introduce ozone gas into flowing water streams in a variety of industrial and water-treatment applications. Constructed from grade 316 stainless steel, this venturi injector offers robust corrosion resistance and long-term performance in ozonation systems where both ozone gas and liquid water are present under pressure.

Venturi injectors are widely used in ozone water treatment, wastewater oxidation, cooling tower sanitation, aquaculture water quality systems, and other processes that require high dissolved ozone levels with minimal off-gas. By using differential pressure to draw ozone into the liquid stream without moving parts, SS-316 venturi injectors provide a reliable, energy-efficient method of maximizing ozone transfer and enhancing overall treatment effectiveness.

Core Technology & Data

Operating Principle

A venturi injector takes advantage of the pressure differential created when water accelerates through a constricted throat section of the device. As water flows into the injector:

• • Velocity increases and pressure decreases at the venturi throat.
• • This pressure drop generates a vacuum that draws ozone gas into the water stream via a dedicated suction port.
• • Turbulence and shear forces within the venturi aid in breaking ozone gas into fine bubbles, improving dissolution efficiency.

This mechanism allows ozone to be rapidly and uniformly incorporated into the water stream with no moving parts, reducing mechanical complexity and maintenance requirements.

Material & Construction

The SS-316 venturi injector is fabricated from 316-grade stainless steel, giving it:

• • High corrosion resistance against ozone’s oxidative effects and aqueous environments.
• • Mechanical durability under varied operational pressures and temperatures.
• • Compatibility with aggressive oxidative gases and dissolved ozone chemistry common in industrial water systems.

316 stainless steel resists degradation while ensuring structural integrity — especially important in long-term ozonation installations.

Performance & Compatibility

SS-316 venturi injectors are designed to operate with:

• • Pressurized water flows from pumps, circulation systems, or pressurized pipelines.
• • Ozone feed gas delivered from ozone generators sized to meet specific dissolved ozone target levels.
• • Compatible mounting and connection sizes to integrate with standard piping used in industrial treatment systems.

These units are often paired with downstream contactors or static mixers to maximize overall ozone mass transfer and process efficiency.

Benefits & Performance Highlights

1. 1. High Ozone Mass Transfer Efficiency
   Venturi injectors draw ozone gas directly into the water stream under vacuum conditions, enabling rapid dissolution with high mass transfer rates — often significantly better than passive diffusers alone.
2. 2. Durable Stainless Steel Construction
   Made from 316 stainless steel, this venturi injector resists oxidation and corrosion, supporting long service life in demanding ozonation environments and reducing downtime due to wear or material degradation.
3. 3. Low Maintenance & No Moving Parts
   The hydrodynamic design means there are no moving parts, eliminating the common wear points found in mechanical injectors and greatly lowering maintenance needs over time.
4. 4. Enhanced Water Treatment Performance
   By improving the rate and consistency of ozone dissolution into water, the venturi injector enhances downstream oxidation and disinfection performance — supporting deeper contaminant breakdown, microbial inactivation, and color/odor control in treated water.
5. 5. Energy-Efficient Ozone Transfer
   Ozone gas is entrained via existing water pressure and flow, reducing the need for supplemental vacuum pumps or mechanical gas injection systems, which can save operating energy and complexity.
6. 6. Versatile Industrial Use
   SS-316 venturi injectors are suitable for water networks in:
   • • Municipal and industrial water treatment
   • • Cooling tower sanitation
   • • Wastewater oxidation
   • • Aquaculture and agriculture water quality
   • • Food & beverage wash systems, and more
7. 7. Better Off-Gas Control & Safety
   Efficient transfer means less un-dissolved ozone escapes into the atmosphere, simplifying off-gas capture and destruction needs and improving operator safety around ozone equipment.

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