Download how to choose the right filter housing Download catalogue for doctop filter SNAP RING filter bags are manufactured to the highest standards. Materials must meet stringent specifications for filtration performance and media purity. Production under ISO 9001:2008 quality systems ensures reliability and repeat ability from order to order, year after year. Sewn construction and reliability at an reasonable price • Heavy-duty sewing thread and the metal seal ring are produced to doctopfilter specification • The SNAP-RING seal ring adapts to any bag filter housing • Material is free from silicone and crater-forming substances (including HT material) • doctopfilter strongly recommends the use of an insertion tool that facilitates the insertion of the filter bag into the bag filter housing and ensures the correct alignment of the filter bag inside the restrainer basket Application • Paints and varnishes • Inks • Chemicals • Solvents

Download how to choose the right filter housing Download catalogue for doctop filter Liquid snap Ring filter bag snap ring filter bags are manufactured to the highest standards. Materials must meet stringent specifications for filtration performance and media purity. Production under ISO 9001:2008 quality systems ensures reliability and repeat ability from order to order, year after year. Sewn construction and reliability at an affordable price • Heavy-duty sewing thread and the metal seal ring are produced to doctopfilter specification • The snap ring with material of ss,carbon steel and so on. • The snap ring can be adapts to any bag filter housing • Material is free from silicone and crater-forming substances • doctopfilter strongly recommends the use of an insertion tool that facilitates the insertion of the filter bag into the bag filter housing and ensures the correct alignment of the filter bag inside the restrainer basket Applications • Paints and varnishes • Inks • Chemicals • Solvents

Download how to choose the right filter housing Download catalogue for doctop filter monofilament filter bags feature a wide range of retention ratings. The different materials cover many applications with demanding chemical and thermal properties. These filter bags are designed for surface filtration to retain particles that are larger than the respective pore size. SENTINEL and SNAP-RING mono-filament filter bags for surface filtration • Non-deformable mono-filament material is woven into a specific pattern with fusion-welded intersections for extra strength and a retention rating • All nylon mono-filament filter bags with the FDA seal ring have an inseam for safe filtration • All nylon mono-filament grades <125 micro are manufactured with a twill-tape envelope on the side seam and bottom seam to prevent liquid bypass through the needle holes • The pressure-activated FDA seal ring provides a flexible, chemically resistant seal which adapts to any bag filter housing • Doctopfilter strongly recommends the use of an insertion tool that facilitates the insertion of the filter bag into the bag filter housing and ensures the correct alignment of the filter bag inside the restrainer basket Application: • Paints and varnishes • Inks • Resins • Chemicals • Aggressive solvents

Download how to choose the right filter housing Download catalogue for doctop filter monofilament filter bags feature a wide range of retention ratings. The different materials cover many applications with demanding chemical and thermal properties. These filter bags are designed for surface filtration to retain particles that are larger than the respective pore size. SENTINEL and SNAP-RING mono-filament filter bags for surface filtration • Non-deformable mono-filament material is woven into a specific pattern with fusion-welded intersections for extra strength and a retention rating • All nylon mono-filament filter bags with the FDA seal ring have an inseam for safe filtration • All nylon mono-filament grades <125 micro are manufactured with a twill-tape envelope on the side seam and bottom seam to prevent liquid bypass through the needle holes • The pressure-activated FDA seal ring provides a flexible, chemically resistant seal which adapts to any bag filter housing • Doctopfilter strongly recommends the use of an insertion tool that facilitates the insertion of the filter bag into the bag filter housing and ensures the correct alignment of the filter bag inside the restrainer basket Application: • Paints and varnishes • Inks • Resins • Chemicals • Aggressive solvents

Download how to choose the right filter housing Download catalogue for doctop filter Filter bags for application demanding efficiency greater than 99% AGF filter bag is designed to meet increasingly stringent requirements to filter, and adopt all welding sealing plus 100% latest filtering technology is made and become, to promoting the industrial technology to another level, led the bag filter to a new level. Product advantages and characteristics 1. High efficiency filter, density gradient of materials make capacity volume increase greatly and prolong service life. 2. Double outer protective layer to eliminate the fibers caused by friction with the top issue. 3. All of the filter bag is in accordance with the food administration (FDA) approved material, suitable for food, beverage, and pharmaceutical industries. 4. One-piece structure and unique at the bottom of the welding joint method, is a stronger, more flexible welding sealing methods. 5. Absolutely pure melt blown polypropylene structure, and without adding any resin, cement, or surface treatment. 6. All hot melt welding technology 7. Material: PP. Melt - Blown Polyester 8. Without adding any resin, adhesives or surface treatment agent Features and Benefits • AGF polypropylene filter bags are fabricated from hydrophobic microfiber filter material, which require pre-wetting with an aqueous solution,with different pp and polyester materials layer together • Highly efficient melt-blown filter material in polypropylene or polyester with graded density profiles to maximize dirt-holding capacity and prolong service life • No additives such as resins, binders or surface treatments • Double downstream cover layer virtually eliminates fiber migration • Unique UNI-WELD process for bottom seam provides a stronger, more flexible weld seal • Fully-welded construction with seal ring provides 100% bypass-free filtration • The pressure-activated ring provides a flexible, chemically resistant seal which adapts to any bag filter housing • doctop strongly recommends the use of an insertion tool that facilitates the insertion of the filter bag into the bag filter housing and ensures the correct alignment of the filter bag inside the restrainer basket • With Nylon mesh outside and make the bag life longer. APPLICATION: Filter bag for some strict, filtration efficiency more than 99% of the application Is the ideal choice for food and beverage industry, also can be in other requirements on strict industry into full play • Beer, wine, spirits and beverage filtration • Fine particle removal in parts cleaning • Final filtration of lacquers • Final filtration of vinegar • Activated carbon removal in process systems • Hydraulic oils and lubricants

Download how to choose the right filter housing Download catalogue for doctop filter Feature • Single fibers twisted together to a single filament which is woven into a specific pattern • Monofilament fiber filter bag which will last long time bag life and fast filtering speed • Intersections of single filaments are not fusion-welded • Doctopfilter strongly recommends the use of an insertion tool that facilitates the insertion of the filter bag into the bag filter housing and ensures the correct alignment of the filter bag inside the restrainer basket Application • Paints and varnishes • Inks • Resins

Download how to choose the right filter housing Download catalogue for doctop filter Fully compliant and approved for pharmaceuticals, food and beverages Features • Selected materials ensure compliance with all food applications. In the case of sewn bags, a special lubricant-free thread material is used • An independent lab analysis ensures that FDA requirements are met • Migration is strongly reduced through the careful selection of polymers that are considered to be safe under food law • FDA seal ring prevents liquid bypass for safe filtration • Special Single packaging keeps filter bags free from contamination during shipping and storage prior to use • doctopfilter strongly recommends the use of an insertion tool that facilitates the insertion of the filter bag into the bag filter housing and ensures the correct alignment of the filter bag inside the restrainer basket • It is made in very clean workshop • Special for certain FDA requirement environment Application • Edible oil • Gelatine • Mineral water • Juices • Sugar •Dairy

Download how to choose the right filter housing Download catalogue for doctop filter Double layer pp filter sock are made by two pp filter felt to get more higher efficiency and longer time life. Contructure way: Fully welded liquid filter bags or sewing thread way There are items as following: POXLfilter bag pp long life filer bag with double layer felt PEXL filter bag Polyester long life filter bag with double layer felt Feature: Fully-welded construction for high efficiency and bypass-free filtration • Fully-welded construction with Doctop filter bag seal ring provides 100% bypass-free filtration • The pressure-activated Doctop filter seal ring provides a flexible, chemically resistant seal which adapts to any bag filter housing • Material is free from silicone and crater-forming substances and FDA certification • Special heat set and polish surface treatment significantly reduces fiber release and keep certain micro rate • Stable and flexible welded seams that adapt to the restrainer basket • The handles in the ring make replacing the filter bag quickly and easily • Save labor cost for changing the single filter bag so shortly. • doctop strongly recommends the use of an insertion tool that facilitates the insertion of the filter bag into the bag filter housing and ensures the correct alignment of the filter bag inside the restrainer basket How filter bag works in the bag filter housing Inside the bag filtration system,the filter bag is supported by an inside filter basket.The incoming fluid is to flow out after filtered by the bag filters ,thus the impurity is intercepted in the filter bag.You can continue to use the filter system after changing the filter bag.It is a trend for the bag filter to replace partly the cartridge filter.The small filter bag can filter large amount of liquid. Key doctopfilter Applications • Paints and varnishes • Inks • Chemicals • Process water

Download how to choose the right filter housing Download catalogue for doctop filter High-performance and cost-effective filter bags for long life  applications • Layers of thick polypropylene filter material help to clean fluid gradually and reliably • seal ring provides 100% bypass-free filtration • 100% pure polypropylene fibers without any lubricants and FDA certificated • Material is free from silicone and crater-forming substances • Enables long life filtration in many applications where such filter bags are currently used for cost reasons • The fiber structure of the filter bag material breaks up gels and retains them within the material depth • Doctop strongly recommends the use of an insertion tool that facilitates the insertion of the filter bag into the bag filter housing and ensures the correct alignment of the filter bag inside the restrainer basket Application: • Filtration of high-purity fluids with low particulate concentration • First pass guard filtration • Activated carbon removal

Download how to choose the right filter housing Download catalogue for doctop filter Structure way: thread sewing and fully welding Fully welded liquid filter bags Fully-welded construction for high efficiency and bypass-free filtration • Fully-welded construction with Doctop filter bag seal ring provides 100% bypass-free filtration • The pressure-activated Doctop filter seal ring provides a flexible, chemically resistant seal which adapts to any bag filter housing • Material is free from silicone and crater-forming substances • Special heat set and polish surface treatment significantly reduces fiber release • Stable and flexible welded seams that adapt to the restrainer basket • The handles in the ring make replacing the filter bag quick and easy • doctop strongly recommends the use of an insertion tool that facilitates the insertion of the filter bag into the bag filter housing and ensures the correct alignment of the filter bag inside the restrainer basket Key doctopfilter Applications • Paints and varnishes • Inks • Chemicals • Process water

Features • 2 in (50.8 mm) ANSI end-porting • Larger ports for more flow — up to 150 gpm (568 lpm) • Fluid pressure up to 120 psi (8.4 bar, 0.84 MPa) • Patented, high-reliability closed center air valve is online serviceable • Lube-free operation • Epoxy-coated air section • External controller for optional remote operation Typical Applications • Drum fluid transfer • Bulk fluid supply • Chemical evacuation • Ground water and sump evacuation • Waste fluid removal • Tank and bilge drainage • Slurry and sludge transfer • Filter press feed Typical Fluids Handled • Acids and gases: acetic, chromic, hydrochloric, Hydrofluoric, sulfuric, nitric and phosphoric • Ship cleaning and stripping chemicals

Features • 1-1/2 in (38.1 mm) end-porting • High flow – 100 gpm (378 lpm) in a compact, portable size • Fluid pressure to 120 psi (8.4 bar, 0.84 MPa) • Patented, high-reliability closed center air valve is online serviceable • Lube-free operation • Epoxy-coated air section • External controller for optional remote operation Typical Applications • Tank transfer • Tank stripping • Chemical tank plating • Transferring high temperature acids and gases Typical Fluids Handled • Chemicals • Corrosive fluids • Acids and gases: acetic, chromic, hydrochloric, hydrofluoric, sulfuric, nitric and phosphoric