• 13 years of market test • 14 patents of core technology • Leading brand in China market Applications and Work Flow • Application: Full automatic production line of blood collection tubes(vacuum & non-vacuum). • Process flow: Inverted tube detection→EDTA / BCA dosing-spraying→Drying→Cap adding→ Vacuuming→Unloading into tray→Sealing & shrinking packaging→Finished product. Main Technical Parameters Production capacity 12,000-15,000 pcs/h Tube size Ø13*75mm, Ø13*100mm (available for PET, PP, Glass) Cap size Outer Ø16±0.05*19mm+0.1

Download how to choose the right filter housing Download catalogue for doctop filter Top in single bag filter housing TS series Standard single bag filter housing1S, 2S, 3S, 4S DKD standard top in single bag filter housing TS series, "precise quality, simple surface", uses the most advanced precision casting top type filter structure, to optimize the best performance, meeting a variety of harsh working conditions, it is currently the most popular and acclaimed single bag filter housing models. TS2# Stainless steel, TS2# carbon steel, TS2# PP/PVDF, TS1# Stainless steel, TS1# PP/PVDF, TS4# Stainless steel, TS4# PP/PVDF • Sealing effect is better, to prevent from leakage; • Big effective filtration area, and higher filtration efficiency; • More convenient to replace the filter bag with lower operation cost; • Reasonable structure, more stable and reliable filtration; • The installation height can be adjusted to meet the requirements of specific occasion; • Personalized design, all for your sake. • TS series opening cover (internal polishing) Features of DKD top in single bag filter: The inner space of the filter is used more fully, and completely eradicates space waste in the traditional side entry type. Open the cover it can quickly replace the filter bag, reducing the second pollution, not like the traditional side entry type needs to remove the filter press ring before replacement. Fluid inlet pipe is wide, the inside top cover is in trumpet shape, after entering the liquid can automatically part pressure; small impact to filter-bag, effectively protecting the filter-bag, preventing from accidents, small pressure loss, and the filtering is more faster and more stable. The filter-bag uses patent ring, which is close to the filter and can not be loosened; multiple sealing, so the sealing effect is better.

Download how to choose the right filter housing Download catalogue for doctop filter Side Flow bag filter Housing Side entry single bag filter housing DS series DS open cover   DS2#  DS1# (knapsack type)   DS1#     DS top and bottom cover The Side Flow offers the most cost-effective solution to single bag filter housing requirements. Its unique one-piece body design eliminates the traditional body to bottom cap circumferential weld and provides a secure, no by-pass internal seal for operational integrity. The Side Flow is available with Doctop’s new Splash Guard safety accessory option. DS series concave cover single bag filter housing is a single bag filter housing with optimal structure form, wonderful sealing effect, suitable for high precision filtration, high strength structure, higher security, extremely durable. • Subtle absolute sealing design, which is suitable for high precision filtration; • Shell sealing and bag sealing can be completed at the same time, simplifying the operation; • Precision casting concave cover structure, soft separation, optimization of filter cake formation; • Fluid piping design, low pressure loss; • Equipped with standard flange, high strength, safety and reliability; • The design of quick opening, unscrew the nut that can open the cover, convenient maintenance; • Nut ear seat enhancement design, not easy to bend deformation, and can long-term bear1.0MPa pressure; • Using high quality stainless steel 304, 316L material; • The low operation height, easy to bend arm mounting bag; • Excellent welding quality, safe and reliable; • The volume is smaller than that of the side inlet filter with the same area, reducing material waste; • After opening the cover, the filter bag necklines shows residual liquid level, convenient for safe extraction, and suitable for corrosion, high temperature and high viscosity liquids; • Three kinds of import and export orientation distribution, convenient for design and installation; • High strength stainless steel bolt and nut, corrosion resistant, durable; • Stainless steel bracket, adjustable height, convenient for installation and docking; • Outside surface processing sand blasting, easy to clean, beautiful and generous.

Download how to choose the right filter housing Download catalogue for doctop filter High quality liquid filters PP material plastic water bag housing 1. Brief description of PP material plastic water bag housing PP material plastic water bag housing plastic PP for bag2#,1# ,5# easy for installation This one is most advance one in the world, it can be used widely in the sea water treatment and also the long time use no leakage problem. 2. Types of PP material plastic water bag housing: 2# PP material plastic water bag housing 5#  PP material plastic water bag housing 3. Features of PP material plastic water bag housing - simple and reasonable structure - good sealing - high water flow capacity - easy operation - positive sealing arrangement to avoid bypassing - high filtering fineness - easy replace 4. Applications of PP material plastic water bag housing PP material plastic water bag housing in Paint Process water Filtration Plating Solutions Coatings Lubricants Solvents Hydraulic Fluids Ground Water Remediation Industrial Waste Water Treatment

Download how to choose the right filter housing Download catalogue for doctop filter For Continuous and High Flow Rate Applications An integral valve linkage assembly is available for DUOLINE housings with butterfly valves that permits operation of the valves with a single handle. DUOLINE housings are available in carbon steel or stainless steel for size 02 (double length) filter bags. End connections are either 2" or 3" flanged. Key DOULINE Applications: • Automotive • Food and Beverage • Chemical Processing • Paints, Inks, Resins and Coatings • Electronics • Petrochemicals • Municipal Water Treatment • Industrial Water Treatment • Pulp and Paper • Pharmaceutical • Lubricants, Metalworking Fluids • Solvents

Download how to choose the right filter housing Download catalogue for doctop filter High quality liquid filters pvdf material plastic water bag housing 1. Brief description of pvdf material plastic water bag housing pvdf material plastic water bag housing plastic pvdf for bag2#,1# ,5# easy for installation This one is most advance one in the world, it can be used widely in the sea water treatment and also the long time use no leakage problem. PVDF can against the temperature 150Deg. Its weight is around 26kg for one bag filter housing. With high quality control, our pvdf bag filter housing is very popular in end user market. 2. Types of pvdf material plastic water bag housing: 2# pvdf material plastic water bag housing 5#  pvdf material plastic water bag housing 3. Features of pvdf material plastic water bag housing - simple and reasonable structure - good sealing - high water flow capacity - easy operation - positive sealing arrangement to avoid bypassing - high filtering fineness - easy replace 4. Apvdflications of pvdf material plastic water bag housing pvdf material plastic water bag housing in Paint Process water Filtration Plating Solutions Coatings Lubricants Solvents Hydraulic Fluids Ground Water Remediation Industrial Waste Water Treatment

Download how to choose the right filter housing Download catalogue for doctop filter Quick opening multiple bag type filter housing - VM series VM series quick opening multiple bag type filter housing, to focus on efficiency and safety and durability of users design, mainly used in more impurities, filter elements need to be replaced frequently and continuous production and fast switching filter, VM filter housing is a sharp tool to improve production efficiency. Filter element replacement is fast and reliable, effectively reducing the impact of the production disruption caused by the replacement components, significantly improve the production efficiency, at the same time, greatly reduce the labor intensity of workers. VM opening cover diagram Filter characteristics: • The fastest 15 seconds to ON/OFF the filter housing, quickly replace the filter element; • ON/OFF in a fixed position, no need to round the filter housing to tight nut; • With safety chain design, exhaust pressure to open the filter housing; • Gravity balance auxiliary opening mechanism, the single finger can push up to any open angle can be opened; • Vertical open cover, a plurality of compact can be parallel, saving installation space and cost of piping; • With a special bag pressing ring fastening tools, simple operation and labor; • Reduce the downtime to the shortest, promote productivity and reduce operating costs; • Selection of high quality O type elastomer sealing ring, excellent sealing performance and sealing life time; • The copper nut is designed, the thread is no longer with the thread, and the rotation is more time saving and labor saving; • The liquid part is made of pure stainless steel, excellent corrosion resistance and durability; • 8 models, respectively, three bags, four bags, five bags, six bags, eight bags, twelve bags, seventeen bags, twenty-three bags; • three kinds of import and export orientation layout, convenient design and installation. After a period of time, the replacement steps are as follows: Step 1: open the safety interlock device to ensure the synchronous pressure relief. Step two: rotate the shaft by hand, open the hoop safely Step three: use a spring assisted balance mechanism to open the upper cover. Step four: the use of pressure ring fastening tools, rotary open pressure ring Step five: remove the bag, change into the new bag Step six: close the top cover Step seven: rotate the shaft by hand. Step eight: close the safety interlock device, enter the status of continuing work

Download how to choose the right filter housing Download catalogue for doctop filter mussels open type multiple bag filter housing- BM series - BM series mussels open type multiple bag filter housing is developed on the basis of fast open type bag filter housing, suitable for processing all kinds of acid and alkali liquid, solvent and all kinds of neutral liquid. BM series mussels open type multiple bag filter housing the bolt is used to tighten the cover body, and the pressure is higher. With flange and sealing ring and the unique three point pressing device to fastening bag, avoid side leakage, the top cover adopts a spring balance auxiliary opening mechanism, and can be at any angle. Filter characteristics: • Using high grade design specifications to ensure adequate corrosion and maximum reliability; • Suitable for large flow filter, can accommodate more impurities, also suitable for a long time to replace the filter bag of occasion; • Can choose 01, 02 dimensions of the filter bag or filter; • Eye bolt design, convenient operation, economical and practical; • Elaborate design of the auxiliary opening mechanism, so that the opening process is easy and effort, one hand to complete the operation; • Selection of high quality type 0 elastomer sealing ring, excellent sealing performance and sealing life; • Reduce the downtime to the shortest, promote productivity and reduce operating costs; • The liquid part is made of pure stainless steel, excellent corrosion resistance and durability; • eight models, respectively, three bags, four bags, five bags, six bags, eight bags, twelve bags, seventeen bags, twenty-three bags.

Download how to choose the right filter housing Download catalogue for doctop filter Rocker multi pocket type filter housinghousing YM series Rocker multi pocket type filter housingYM series is designed for high capacity pollution or large flow filtration requirements. Multi pocket design for conventional 2-23 bags. Single machine can be up to 32 bags. Quick opening design and with top cover auxiliary lifting rocker arm. The bag can be installed 0.5m2 series. Multi bag Q235 carbon steel, 304 stainless steel and 316L stainless steel and other materials, applicable to the treatment of a variety of acid and alkali liquids, solvents and a variety of neutral liquids. Technical features and advantages • Multi bag filter housing, 2-23 bag provided design structure • Suitable for high capacity sewage or large flow needs • Importing and exporting a variety of sizes (DN80-DN300), convenient for direct docking • Equipped with standard flange, ensuring adequate strength of equipment and pipe load capacity • The design of quick opening, unscrew the nut that can open the cover, convenient maintenance; • Excellent welding quality, safe and reliable; • High strength stainless steel bolt and nut, corrosion resistant, durable; • Outside surface processing sand blasting, easy to clean, beautiful and generous. • Dual exhaust and drainage design makes the bag filter housings safe and convenient for use.

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

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 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