Air Filter Classification And Labeling
Air Filter Classification And Labeling Classified by performance
Coarse-efficiency filters are divided into coarse-efficiency type 1 filters, coarse-efficiency type 2 filters, coarse-efficiency type 3 filters, and coarse-efficiency type 4 filters;
Medium-efficiency filters are divided into medium-efficiency type 1 filters, medium-efficiency type 2 filters and medium-efficiency type 3 filters;
High efficiency filter;
Sub-high efficiency filter.
Classified by type
Tablet type;
pleated style;
bag type;
Coiled type;
barrel type;
Electrostatic type.
Classified by filter material replacement method:
washable;
Replaceable;
Single use.
Classified by specifications
The basic specifications of the filter are expressed in terms of rated air flow. The specification code for less than 1000 m3/h is 0, which increases by 0.1 for every 100 m3/h increase. The specification code for the increase of less than 100 m3/h remains unchanged.
mark
The principle of expressing the overall dimensions of the filter is: the depth is the direction of the air flow, the height is the vertical length when the vertical section in the direction of the air flow is correctly installed, and the width is the horizontal length.
Basic regulations, materials and construction:
Basic rules
Filters are produced according to drawings and technical documents approved by prescribed procedures.
The frame or support body has no uneven scars or damage, and the shape is complete and regular.
The filter material is not damaged.
The single-phase rated voltage of the electrostatic air filter should not be greater than 250 V, the three-phase rated voltage should not be greater than 480 V, and the rated frequency should be 50 Hz for the electrostatic air filter unit.
The electrostatic filter should be equipped with power-off protection to ensure that when the unit structure is opened for repair or maintenance, its internal device will automatically power off.
Material filter material:
Efficiency, resistance, strength, dust holding capacity and other properties should meet the performance requirements of similar filters;
It should comply with the health requirements promulgated by the state and not cause secondary pollution;
The thickness and density should be uniform, there should be no obvious debris such as hard lumps, and there should be no cracks, holes or other trauma on the surface;
For renewable or washable filter materials, the efficiency after regeneration or cleaning should not be less than 85% of the original index, the resistance should not be higher than 115% of the original index, and the strength should still meet the usage requirements.
The shear strength and tensile strength of the adhesive and sealant adhesive should not be lower than the strength of the filter material, and its temperature and humidity resistance should be the same as the filter material;
The sealant should ensure that the filter resistance is under the extreme conditions of use, does not crack or degumm during operation, and is elastic. Its temperature and humidity resistance should be the same as the filter material.
structure
frame or support:
When the frame or support is used as both the filter media support and the filter sealing end frame,Air Filter Classification And Labeling it should have strength and stiffness requirements for normal use.
Sealing measures
The filter element and the frame (or support) should be tightly pressed. If sealed with glue, the bonding should be firm without leaks or cracks. The bonding points and seams will not crack after the tear test;
If there is a sealing gasket on the end face of the frame (or support body), the gasket should be flat, elastic, and firmly bonded to the frame (or support body). Cleanable and replaceable filters should be easy to disassemble and install, and the cleaning method should be simple.
Factory Show:
FAQ:
Q1.Are you a manufacture or trading company?
A:We are a manufacure.
Snyli Environmental Technology (Shandong) Co., Ltd was established in 2010, is a professional service provider of air purification products integrating R&D, production and sales, with registered brand- SYNLI.
Q2: Where are air filters commonly used?
A :HAVC(heating, air conditioning and ventilation systems) painting stations, chemical plants, pharmaceutical plants, cement or asphalt powder plants, clean rooms, power stations, heavy metal industries, gas turbines and cogeneration power plants, engineering and equipment plants, drying and baking rooms, hospitals, etc.
Q3: What are your testing criteria?
A: EN779:2012 ISO9001
Q4: What is the international standard for air filters?
A:Euro :Pre (G1-G4), Medium (F5-F9), HEPA (H10-H14) ULPA (U15-U17)
American :Pre (MERV5-7), Medium (MERV8-14), HEPA (MERV15-19) ULPA(MERV 20)
Q5: What is your sample policy?
A: The sample price will be the product price of the standard order. If you make a demo order after receiving the sample and proofing (reaching our MOQ), we will roughly understand the sample price and sample price in the order, and give us your MOQ price.
Q6: How about your after-sales service?
A: Even if we have confidence in the quality of our products, the products may be damaged due to some unpredictable reasons. Please use and maintain the products you purchased correctly in accordance with the user manual or the recommendations of the sales staff. Contact the household to understand the usage of the product, provide suggestions or support professional maintenance services according to the warranty policy.
