Water Filtration Unit for Ultrasonic Vegetable Washer

Product Specifications

Technical details and manufacturing context for Water Filtration Unit

Definition

The Water Filtration Unit is an integral part of the Industrial Ultrasonic Vegetable Washer, responsible for purifying the water supply before it enters the ultrasonic cleaning chamber. It ensures that waterborne particles, sediments, and other impurities are removed to prevent recontamination of vegetables during the washing cycle, maintaining hygiene standards and protecting the ultrasonic transducers from damage. The unit operates by pumping water through a series of filter media, such as sediment filters, activated carbon, or membrane filters, which physically trap or adsorb contaminants based on size exclusion and chemical attraction. This process produces clean water for the ultrasonic washing process, ensuring consistent cleaning performance and extending the life of the equipment. The unit is designed with a polypropylene housing and offers various filter media options, including activated carbon and sediment cartridges. Key parameters include a filtration rating of 5–50 μm (per ISO 16889), a flow rate of 10–100 L/min, an operating pressure of 1.0–1.6 MPa, and a maximum operating temperature of 5–60°C. Housing materials can be 304 or 316L stainless steel (per ASTM A240), and filter media can be PP, PES, or PTFE. Connection sizes range from DN25 to DN100 (per ISO 7005), with a weight of 5–30 kg. Pressure drop is typically 0.05–0.3 MPa, and seal materials include EPDM, NBR, or Viton. These values are reference ranges and must be verified for the specific model and application with the legal manufacturer or supplier. The unit is a component, not a standalone product, and its selection depends on feed water quality, required flow rate, and system pressure. Proper installation and maintenance are essential to ensure optimal filtration and to prevent damage to the ultrasonic system.

Working Principle

Water is pumped through a series of filter media (such as sediment filters, activated carbon, or membrane filters) that physically trap or adsorb contaminants based on size exclusion and chemical attraction, producing clean water for the ultrasonic washing process. The filtration rating determines the smallest particle size removed, while the flow rate and operating pressure must match the system requirements. As the filter media becomes saturated, pressure drop increases, indicating the need for replacement or cleaning. The unit operates within specified temperature and pressure limits to avoid media degradation or structural failure.

Common Materials

Polypropylene housing, Activated carbon filter media, Sediment filter cartridge

Technical Parameters

Parameter	Typical range	Notes & selection driver
Filtration Rating	5–50 μm	Select based on particle size in feed water.ISO 16889
Flow Rate	10–100 L/min	Ensure sufficient flow for washing process.
Max Operating Temperature	5–60 °C	Above 60°C may degrade filter media.
Housing Material	304/316L	316L for corrosive water.ASTM A240
Filter Media	PP/PES/PTFE	PP for general use, PTFE for high temp.
Connection Size	DN25–DN100 mm	Match piping system.ISO 7005
Weight	5–30 kg	Depends on size and material.
Pressure Drop	0.05–0.3 MPa	Higher when filter is dirty.
Seal Material	EPDM/NBR/Viton	Viton for high temp or chemical resistance.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Filter Housing
Contains and protects the filter media, provides water inlet/outlet connections

Material: Food-grade polypropylene
Sediment Filter Cartridge Part
Removes larger particles like sand, rust, and sediment from the water

Material: Pleated polypropylene
Activated Carbon Filter
Adsorbs chlorine, organic compounds, and improves water taste/odor

Material: Granular activated carbon
Membrane Filter Optional
Removes particles finer than the sediment and carbon stages can catch, where the filtration rating calls for it.

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Frequently Asked Questions

What is the purpose of the Water Filtration Unit?

It removes contaminants from water before it enters the ultrasonic cleaning chamber, preventing recontamination of vegetables and protecting ultrasonic transducers from damage.

What are the key parameters to consider?

Filtration rating (5–50 μm), flow rate (10–100 L/min), operating pressure (1.0–1.6 MPa), and maximum temperature (5–60°C). These must be matched to the system requirements.

How do I know when to replace the filter media?

Monitor the pressure drop across the unit. A higher pressure drop (up to 0.3 MPa) indicates the filter is dirty and needs replacement or cleaning.

Can the unit handle corrosive water?

Yes, if the housing material is specified as 316L stainless steel, which is suitable for corrosive water. Verify the material grade with the manufacturer.

Data Basis

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Preliminary Technical Classification

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pressure:	0 to 10 bar
flow rate:	Up to 100 L/min
temperature:	5°C to 80°C
slurry concentration:	Up to 5% solids by weight

Water Filtration Unit

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