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VAS-I Automatic Self-cleaning Internal Scraper Filter

Short Description:

Filter element: Stainless steel wedge mesh/perforated mesh. Self-cleaning method: scraper plate/scraper blade/brush rotating. When impurities accumulate on the inner surface of filter mesh (differential pressure or time reaches the set value), PLC sends a signal to drive the scraper to rotate to scrape off impurities, while the filter keeps filtering. The filter has obtained 7 patents for its automatic shrinking and fitting function, excellent sealing performance, quick cover opening device, novel scraper type, stable structure of main shaft and its support, and special inlet and outlet design.

Filtration rating: 25-5000 μm. Filtration area: 0.22-1.88 m2. Applies to: high impurity content and continuous uninterrupted production conditions.


Product Detail

Introduction

VITHY® VAS-I Automatic Self-cleaning Internal Scraper Filter automatically removes particulate impurities on the inner surface of the filter mesh, in an effective way of mechanical scraping. The scrapers are made of PTFE/stainless steel, equipped with high-precision springs, which can accurately expand and stretch. The scrapers are close to the surface of the filter mesh, and can efficiently remove impurities.

When the impurities accumulate to a certain extent, the automatic sewage valve opens and the impurities are discharged from the bottom sewage outlet. The filter is suitable for high impurity content and continuous uninterrupted production conditions, for it 1) can realize continuous in-line filtration and 2) particulate impurities recovery, 3) generates no filter consumables, and 4) does not need frequent manual cleaning.

Operating Principle

The raw material enters the filter from the inlet and is filtered through the filter mesh, and impurities are trapped on the inner surface of the filter mesh. As impurities accumulate, the pressure difference between the inlet and outlet gradually rises. When the differential pressure or time reaches the set value, the motor drives the scrapers equipped with a corrector to rotate close to the surface of the filter mesh to scrape off the impurities. Impurities flow down with the stream to the collection chamber. The sewage system is automatically turned on regularly. During the impurities scraping and sewage discharging process, the filter keeps filtering.

VAS-I Automatic Self-cleaning Internal Scraper Filter (2)

Features

 Automatic self-cleaning feature ensures constant cleanliness without the need for disposable filter consumables, saving costs and reducing environmental disposal.

 PTFE wear-resistant scraper effectively removes impurities, extending filter's service life.

 High-strength filter with precise gaps and smooth surface ensures long-lasting performance and easy impurity removal.

 Minimal pressure loss, stable flow rate, and low energy consumption allow for continuous and stable operation.

 Sealed filter system prevents harmful substance leakage, promoting safe production.

  Discharged waste liquid contains high concentration of impurities for valuable material recovery.

 Filter offers multiple module combinations and automatic modes for various filtering needs.

 Equipped with high-quality geared motor or pneumatic components for reliability and long service life.

  Easy operation with auxiliary lifting device on upper cover of the filter.

VAS-I Automatic Self-cleaning Internal Scraper Filter (3)
VAS-I Automatic Self-cleaning Internal Scraper Filter (1)

Specifications

Model

I22

I42

I72

I109

I136

I158

I188

Filtration Area ()

0.22

0.42

0.72

1.09

1.36

1.58

1.88

Filter Element

SS304/316L Wedge mesh

SS304/316L Perforated mesh

Self-cleaning Method

PTFE Scraper plate

SS304/316L Scraper blade

SS304/316L Brush

Nylon Brush

Filtration Rating (μm)

25-5000 (Higher precision customizable)

Reference Flow Rate (m³/h)

3.9-24

6.5-45

10.8-85

16-140

20-192

32-300

59-500

Maximum Operating Temperature (℃)

200

Operating Pressure (MPa)

0.1-1.0 (Higher pressure customizable)

Volume (L)

42

64

180

320

400

580

750

Inlet/Outlet Connection Method

Flange/snap

Inlet/Outlet Diameter (DN)

Customized

Sewage Outlet Diameter (DN)

40

40

40

50

65

80

40

Motor Reducer/ Cylinder

180/250/370/550W/750W, 3-phase, 380V motor or explosion-proof motor/Cylinder-driven

Pneumatic Sewage Ball Valve

Double-acting actuator cylinder, 220VAC or 24VDC solenoid valve/explosion-proof solenoid valve, air supply requirement 5SCFM (m³/h)pressure 0.4-0.8MPa

Differential Pressure Device

A differential pressure switch or differential pressure transmitter is used for protection control.

Control Box

220V Control box or Explosion-proof control box

Sealing Material

EPDM/NBR/VITON/PTFE, etc.

Note: The flow rate is for reference (100 μm). And it is affected by the viscosity, temperature, Filtration Rating, cleanliness, and particle content of the liquid. For details, please contact VITHY® engineers.

Applications

Industry:
Petrochemical, fine chemicals, bioengineering, food, pharmaceutical, water treatment, paper, steel,.power plant, electronics, automotive, etc.

Fluid:
Water, fermentation broth, syrup, protein, corn steep liquor, soybean meal, culture medium, crude oil, mixed oil, methyl styrene, concentrated sulfuric acid, methanol, polymer, resin, printing ink, pigment, filler, coatingmaterial, citric acid, soap, rubber, sorbitol, wet end chemical additives, adhesive, ethanol, chocolate, high-temperature oil, fruit juice, coolant liquid, diesel, kerosene, etc.

Main filtration effect:
Remove large particles; fixed value screening; purify fluids; protect key equipment.

Filtration type:
Scraping filtration; automatic continuous in-line filtering.


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