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The glass fiber bag-type medium-efficiency filter is made of ultra-fine glass fiber filter material and is sewn into a bag structure. It complies with GB/T 14295-2019 “Filtros de ar”, with efficiency grades F5-F9. It mainly captures dust particles ranging from 1 para 10 micrometers, as well as some bacteria and aerosol particles. As a mid-level filter for air conditioning systems, it is placed after the G4 primary filter and before the high-efficiency/ultra-high-efficiency filters, providing reliable protection for the rear-end HEPA filter. Compared to the chemical fiber bag-type, the glass fiber filter material has better stability in filtration efficiency and is more resistant to aging. It is suitable for pharmaceuticals, laboratories, chemical industries, and high-demand clean air conditioning systems.
Highlights
✅Filter performance is stable: The efficiency of glass fiber filter material does not easily decline over time. Compared with chemical fiber filter material, it is more resistant to aging and is suitable for GMP air conditioning systems with long-term continuous operation.
✅ Large dust collection capacity, large ventilation area of bag structure, moderate pressure loss, reducing fan energy consumption.
✅ Superior temperature resistance compared to ordinary chemical fiber bags. It can withstand up to 80℃ for long-term use and can adapt to short-term high-temperature working conditions.
✅ Resistant to partial chemical corrosion, suitable for ventilation environments with slight organic solvents and disinfection gases.
✅ Excellent protection effect on the rear-end high-efficiency filter, reducing the load of the high-efficiency filter and prolonging the service life of the high-efficiency filter.
Product Parameter
Filter material Ultra-fine glass fiber filter material, with fine fibers and slow efficiency attenuation, excellent anti-aging performance
Filter bag Sewn bag body, reinforced bag opening; Bag quantity can be selected from 3 para 12 pieces; Some styles use heat-melt sealing edges to reduce needle hole air leakage
Quadro Available in galvanized steel, aluminum alloy, and 304 aço inoxidável
Internal partition Built-in positioning partition to prevent the filter bag from being sucked瘪 and adhered under wind pressure, ensuring smooth air flow channels
Selagem Flange equipped with EVA foam sealing pad to ensure the sealing performance of frame installation

Product Features

Product Introduction

This 24×24 pocket air filter is the most common size of pocket air filters. The pocket air filter is made of Synthetic fiber, glass fiber can also be used according to requirements. During production, the fibrous materials are made together to form pockets. Pocket quantity of this type air filter can be customized according to customer requirements, 3, 6, 8, etc. The length of the bag can also be specified by the customer. The dust holding capacity, surface area, resistance, etc., will change with the change of these pockets and lengths. Generally speaking, the larger the surface area and the greater the dust holding capacity, the longer the filter life.

 

Secondary or back-end filtration for various ventilation systems, air conditioning systems and dust removal systems.

Product Sepecification

Quadro: Aluminium alloy/ Galvanized steel/Stainless steel/Plastic

Mídia: Synthetic media or fiberglass media

Design: Pocket type

Maximum relative humidity: 100%

Frame thickness: 21mm, 25mm, 46mm

Customized size: Available

Efficiency rate:

Green pocket air filter: 60-65% @1~3μm,

Pink pocket air filter: 80-85% @ 1~3μm,

Yellow pocket air filter: 85-90% @ 1~3μm

Glass fiber bag filter

Common Specifications

Model Actual size
W×H×D(mm)
Pocket Qty Air flow
(m³/h)
Initial P.D.(Pai)
MERV 11 MERV 13 MERV 14
DG3D-34T-6A 592×592×381 6 3400 82 135 165
DG3D-34T-8A 592×592×381 8 3400 75 126 150
TF5D-34T-6B 592×592×533 6 3400 70 115 140
TF5D-34T-8B 592×592×533 8 3400 63 106 126
TF8D-34T-6C 592×592×600 6 3400 52 86 118
TF8D-34T-8C 592×592×600 8 3400 48 81 106
Support customization

Product Feature

– Area around pockets is ultrasonic sealed to ensure consistent air flow

– Standard and custom sizes are both available.

-Robust and durable material;
-High dust holding capacity and low resistance;
-High porosity of filter media, large filtration area;

-Temperature resistance up to 150 degrees;
-Good efficiency stability;
-No formaldehyde addition, safe and environmental protection;
-High air tightness;
-low clogging rate and long service life;
-Compliance with EN779-2012, ISO 16890-2016 test standards.

Product Applications

This 24×24 pocket filter is a good choice for HVAC systems such as food and beverage processing plants, hospitals, laboratories, and offices, as well as any other environment where the air needs to be kept clean.

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