News - Qualified high efficiency filters must have the following requirements

PRODUCT CATEGORY

GUANGZHOU BAC CLEANTECH CO.,LTD
+86 13570963007 / +86 13570963006
hzm@bacintl.com
No.3, Shilonggang Road, Dalong Street, Panyu District, GuangZhou, China

Qualified high efficiency filters must have the following requirements

Qualified high efficiency filters must have the following requirements I、Filter media Permeable filtration, resistance to meet the performance requirements of similar filter media in the standard. Tensile strength should be determined by the method specified in GB/T435. For filter paper with partition: longitudinal greater than or equal to 0.3KN/M transverse greater than or equal to 0.2KN/M. For filter paper without partition: longitudinal greater than or equal to 0.7KN/M transverse greater than or equal to 0.5KN/M. The thickness should be measured according to the method specified in GB/T 451.3 and should not exceed 0.40mm The filter material should be uniform and should not contain playing hard blocks. The surface should not have cracks, abrasions, pinholes, color spots, etc. II、Borders The material used to make the frame should have a certain strength and stiffness. The thickness of the material should be selected according to the material and the length of the edge to meet the requirements of strength and stiffness of the frame. When the following materials are used, they should comply with the relevant standards and take appropriate anti-rust or anti-corrosion measures, as required. Cold rolled steel plate, the thickness should be 1. 0 mm-2 mm, galvanized, sprayed or other rust prevention measures taken after forming and welding. The material shall conform to the provisions of GB/T 912 The thickness of aluminum alloy panels should be 1.5 mm-2 mm and the material should comply with GB/T 3880.1 and GB/T 3880.2. Wooden boards, plywood, the thickness should be 1.5 mrn-20 mm. should be painted, and other corresponding anti-corrosion treatments according to the user's requirements. The material conforms to the provisions of GB/T 5849 and GB/T 984fi. 3. 4. stainless steel plate, the thickness should be 1. 0 mm - 2 mm. the material should conform to the provisions of GB/T 3280. III、Separators Separator with partition filter, can be used aluminum foil, plastic plate, offset printing paper, etc.; separator without partition filter, can be used hot sol, glass fiber paper strips, flame retardant wire, etc. . Materials used for high efficiency and ultra-high efficiency filter separators should meet. The aluminum foil should comply with the provisions of GB/T 3198. When paper partitions are used, the surface can be treated with paper partitions or 120 by impregnation. When plastic partitions are used, the temperature resistance should be no less than 500. IV、Binders and sealants The binder is used for the splicing and repair of the filter material and the bonding of the gasket and the frame, and its shear strength and tensile strength should be higher than that of the filter material. Sealant is used for the sealing of the filter element and the frame, and should be able to cure at room temperature and pressure, and can ensure that the filter does not crack, does not deglue, and has elasticity when operating under 10 times the initial resistance, and the fire resistance of the binder and sealant should meet the performance requirements of similar filters. When the customer has special requirements for the air release performance of organic matter in the filter product, the air release performance of the binder and sealant should be able to meet the customer's requirements. V、Gaskets The gasket should be made of a closed-cell material that is elastic and not easy to age; The hardness of the gasket (tested with Shore hardness W hardness tester) is 33sh2 and the permanent deformation in compression is <60% (40% 130°C24). When the customer has special requirements for the air release performance of the organics in the filter product, the air release performance of the gasket should be able to meet the customer's requirements. VI、Protective Mesh Available stainless steel pull plate mesh, perforated plate, spot welded galvanized wire mesh, spot welded stainless steel wire mesh, or plastic sprayed steel mesh.