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Structure The filter separator is composed of a metal shell with primary filter element (filter coalescence filter element) and secondary filter element (separation filter element) inside, and is equipped with sewage valve, drain valve, differential pressure gauge, safety valve, heat tracing device and other accessories Working principle After the jet fuel enters the filter separator, it is first collected in the aluminum tray and then dispersed into the coalescence filter element from the inside to the outside. In the first step, the solid impurities are filtered by the filter layer, in the second step, the emulsified oil-water is separated through the demulsification layer, and in the third step, the small water droplets are aggregated into large water droplets by the coalescence layer and settled in the water collecting tank; Then, the small water droplets that can coalesce in the future are further separated by the water repellent effect of the separation filter element, settled in the sedimentation tank and discharged by the drainage valve. The clean fuel is collected in the secondary tray through the separation filter element and discharged from the outlet of the filter separator Service life The working state of the filter separator and the working life of the filter element are mainly judged according to the pressure difference. When the inlet and outlet pressure difference reaches 0.1MPa (1.0kg / cm & sup2;), It indicates that the coalescence filter element has been blocked and should be replaced. In addition, when the coalescing filter element is used for more than half a year, it should also be considered to replace it. The separation filter element is a permanent filter element, which can be used for a long time if there is no mechanical damage. However, when replacing the filter coalescence filter element, it should be removed for cleaning and inspection Selection criteria Selection requirements The design pressure of the filter separator must be higher than the actual working pressure The design flow of filtration separation should be greater than 30% - 50% of the actual working flow. The rated flow of the filter cannot be selected according to the rated flow of the pump, because the actual working flow of the pump is likely to be higher than its rated flow The filter separator is divided into three levels: A, B and C; From 30m & sup3 according to flow/ h-500m³/ h； It is divided into 1.0, 1.6, 2.5, 4.0 and 6.4Mpa according to the design pressure; According to the installation form, it is divided into vertical and horizontal; According to the filtering accuracy, it is divided into 3~5μ M and 1 & mu; M (dedicated to filtering suspended solids); There are 170 specifications and models, including no heat tracing device and heat tracing device, according to the use area. The main performance indexes are as follows: As can be seen from the above table, the performance priority is class a > class B > class C, that is, without considering the cost, class a can replace class B and class B can replace class C Product model identification Use and maintenance After the filter separator is installed, it can work continuously and reliably for a long time. Generally, it is not necessary to open the cover for cleaning, but the following points should be paid attention to during normal use: 1) Deflate in time. For the filter installed with manual air release valve, manual air release shall be carried out during each operation, because too much gas in the shell will affect the normal operation of the filter 2) Deposit frequently. After each refueling operation, sediment shall be discharged, and it is normal to have water in the sediment. If solid impurities are found during precipitation, the cause shall be found out and treatment measures shall be taken in time 3) Keep recording the differential pressure. After each operation, the filter differential pressure and fuel throughput shall be recorded in the maintenance log to judge whether the filter separator works normally. If the differential pressure drops suddenly, it shall be stopped immediately, and the cover shall be opened for inspection in time to find out the cause 4) Replace the filter element Replace the coalescence filter element when the following conditions occur: ① The differential pressure reaches 0.1MPa ② The service life exceeds half a year ③ The filter element is damaged (the differential pressure drops suddenly) Replace the separation filter element when the following phenomena occur: ① Damaged filter element ② The filter element fails the water spraying test   Common faults and troubleshooting     Malfunction Possible causes Exclusion method Solid impurities found in precipitation 1. Coalescence filter element is damaged Replace coalescing filter element 2. The filter element fixing nut is not tightened Tighten 3. Incorrect installation Reinstall 4. The primary tray is not fixed properly Fixed The free water content of outlet fuel exceeds the specified index 1. Coalescence filter element is damaged Replace coalescing filter element 2. The separation filter element is damaged Replace coalescing filter element 3. The hydrophobicity of the separation filter element decreases Replace coalescing filter element 4. The filter element is not installed correctly Reinstall The differential pressure drops suddenly 1. Coalescence filter element is damaged Replace coalescing filter element 2. Coalescing filter element is improperly installed ReinstallMaintenance and application     Maintenance and application   1)Deflate on time 2)get rid of deposit often 3)insist on recording differential pressure 4)change filter elements     Shell type Quantity of coalescence in every filter sepatater Installation dimension(mm) Quality (kg) Reference draw Coalescence filter element Separate filter element Specification(mm) Quantity Specification (mm) Quantity A B C D E F G H I LTGF-60/1.6-100A1 150x500x63 5 150x500 2 250 1310 1583 476 900 500 600 450 20 680 1 LTGF-90/1.6-150A1 150x600x63 7 150x600 3 250 1365 21664 570 1080 600 700 450 20 680 1 LTGF-120/1.6-150A1 150x710x63 7 150x710 3 250 1475 1770 580 1080 600 700 450 20 910 1 LTGF-150/1.6-150A1 150x915x63 8 150x710 4 250 1753 2076 600 1100 680 800 450 20 1200 1 LTGF-180/1.6-150A1 150x1120x63 8 150x915 4 250 1958 2281 600 1100 680 800 450 20 1380 1 LTGF-180/1.6-150A2 150x1120x63 8 150x915 4 1080 390 674 2096 800 2135 940 756 20 1450 2 LTGF-240/1.6-200A1 150x915x63 12 150x710 5 250 1830 2172 820 1220 934 900 500 20 1900 1 LTGF-240/1.6-200A2 150x915x63 12 150x710 5 1060 480 694 2190 900 1980 810 830 20 2080 2 LTGF-300/1.6-200A1 150x1120x63 12 150x915 5 250 2035 2377 820 1220 834 900 500 20 2075 1 LTGF-300/1.6-200A2 150x1120x63 12 150x915 5 1060 480 693 2190 900 2185 940 830 20 2075 2 LTGF-360/1.6-200A1 150x710x63 24 150x1120 5 250 2372 2714 820 1220 834 900 500 20 2281 1 LTGF-360/1.6-200A2 150x710x63 24 150x1120 5 1060 480 699 2190 900 2390 1240 830 20 2281 2 LTGF-420/1.6-250A1 150x1120x63 17 150x915 7 250 2035 2500 820 1400 1034 1100 500 20 2350 1 LTGF-420/1.6-250A2 150x1120x63 17 150x915 7 1000 600 699 2290 1100 2150 940 1000 20 2350 2 LTGF-500/1.6-250A1 150x710x63 34 150x1120 7 250 2372 2800 820 1400 1034 1100 500 20 2658 1 LTGF-500/1.6-250A2 150x710x63 34 150x1120 7 1000 600 699 2290 1100 2445 1240 1000 20 2658 2          

Principle pictureWorking principleWhen the product oil flows in from the inlet, the solid impurities are removed through the filter screen placed in the cylinder. When the liquid passes through the filter screen assembly, change the liquid flow direction to make the free gas and some dissolved gas of the oil species fully run out, and the gas rises to the top of the separator to form a gas space and an oil-gas interface. As the gas increases, the pressure increases, the volume increases, and the oil-gas interface decreases. When it decreases to a certain extent, the floating ball device acts, opens the air valve to exhaust the gas, the oil-gas interface rises, the gas space shrinks, and the floating ball device closes the air valve. In this way, the medium flowing through the degassing filter achieves the purpose of separating oil, gas and solidDesign pressure: 0.6MPa ~ 2.5MPa  Model LTXG-40 LTXG-50 LTXG-80 LTXG-100 LTXG-150 LTXG-200 LTXG-250 Nominal diameter D(mm) 40 50 80 100 150 200 250 Flow range （m³/h） 3.2~16 5~25 12~60 20~100 30~130 20~310 30~500 L 300 320 400 500 500~680 820 940 H 432 440 572 617 617~ 1140 1285 1455 h 170 170 180 280 280~380 550 600

Working principleWhen the liquid enters the filter basket through the cylinder, the solid impurity particles are blocked in the filter basket, and the clean fluid is discharged from the filter outlet through the filter basket. When cleaning is needed, unscrew the screw plug at the bottom of the main pipe, drain the fluid, remove the flange cover, and reinstall it after cleaning. Therefore, it is very convenient to use and maintainScope of applicationThe filter produced by our company has the advantages of compact structure, large filtering capacity, small pressure loss, wide application range, convenient maintenance and low price. Its main applicable materials are:1. Weakly corrosive materials in chemical and petrochemical production, such as water, oil products, ammonia, hydrocarbons, etc2. Corrosive materials in chemical production, such as caustic soda, soda ash, concentrated and dilute sulfuric acid, carbonic acid, aldehyde acid, etc3. Low temperature materials in refrigeration, such as liquid methane, liquid ammonia, liquid oxygen and various refrigerantsLtgs I straight throughTechnical parameters nominal diameter DNDO（mm)L(mm)H1(mm)H2(mm)H(mm) effective filtering area (m < sup > 2 < / sup >) 25892201602604800.0036232892201652704950.00362401142801803005500.00572501142801803005500.00572651403302203506500.00961801683402604007400.015391002194203104708800.0246415027350043062011750.0486620032556053078014950.0785825042666064093018100.12065300478750840120023100.16537Note: the filter flange above DN250 has a rotating arm, the equipment has legs, and the cylindrical top and bottom are heads

Scope of application1. Weakly corrosive materials in chemical and petrochemical production, such as water, oil products, ammonia, hydrocarbons, etc2. Corrosive materials in chemical production, such as caustic soda, soda ash, concentrated and dilute sulfuric acid, carbonic acid, aldehyde acid, etc3. Low temperature materials in refrigeration, such as liquid methane, liquid ammonia, liquid oxygen and various refrigerants4. Materials with hygienic requirements in food and pharmaceutical production, such as beer, beverage, dairy products, syrup, etcThe T-type filter produced by our company is divided into two forms: positive baffle and reverse baffle, which can be customized according to the specific requirements of customers (special pressure and special diameter)  

Scope of use 1. Nominal diameter: dn20mm-dn500mm 2. Nominal pressure: pN0 6Mpa-PN6. 3Mpa； 3. Materials used: HT, 20#, Q235, 18-8, F4, SUS304, SUS316L, etc 4. Design temperature: carbon steel - 20 ℃ - 300 ℃, stainless steel - 190 ℃ - 400 ℃ 5. Applicable materials: water, oil, ammonia, hydrocarbon, alkali, acid, milk, wine, food, medicine, refrigeration, alkane, oxygen, ammonia, etc. the filter equipment lined with PTFE can be applied to almost all corrosive gases and liquids Product features Y-type filter screen adopts stainless steel double-layer screen structure, which is firm and durable. It has the characteristics of advanced structure, small flow resistance and convenient sewage discharge. It can be used for a variety of media such as water, steam, oil, nitric acid, urea and oxidizing media. The mesh number of filter screen shall be set according to the needs of users. Generally, the mesh number of water screen is 18-30, the mesh number of ventilation screen is 40-100, and the mesh number of oil screen is 100-480. The Y-type filter can also be combined with the expansion joint to form a Y-type pull rod expansion filter with adjustable installation length. Filter screen can be made according to user requirements Y-type filter is a necessary filtering equipment for hydraulic control valve and precision mechanical products that are easy to be blocked. It is an indispensable device for the pipeline series conveying medium. It is usually installed at the inlet end of hydraulic control valve, pressure reducing valve, pressure relief valve, constant water level valve and other equipment to eliminate impurities in the medium and prevent particulate impurities from entering the channel and causing blockage, so as to protect the accessories on the equipment pipeline from wear and blockage Technical parameters Ltgy type I filter < TD align = "center" bgcolor = "#ffffff" rowspan = "2" valign = "middle" width = "33%" > nominal diameter dn Overall dimension y Ⅰ L1 H 20 260 140 32 300 195 50 350 195 80 400 295 100 450 350 150 580 428 200 680 520 250 800 670 300 950 750 350 1050 845 400 1250 920   Ltgy II filter   nominal diameter dn Overall dimension y Ⅱ L H 20 370 235 25 370 370 32 390 390 40 390 390 50 420 420 65 450 450 80  

Model meaningNominal pressure: 0.6, 1.0, 1.6, 2.5, 4.0MpaOverall dimension Model and specification Nominal diameter dn L H H1 H2 H4 D1 D2 100LTFW 100 459 508 272 810 100 219 160 150LTFW 150 565 724 404 1150 120 325 260 200LTFW 200 617 793 446 1270 130 377 300 250LTFW 250 860 893 495 1430 130 620 650 300LTFW 300 980 997 563 1600 130 740 800 350LTFW 350 1020 1100 620 1770 130 780 850 400LTFW 400 1100 1200 680 1900 130 860 900 Material and working temperatureThe main structural materials of the filter are carbon steel, low alloy steel or stainless steel, which are represented by codes C, m and s respectively. The working temperatures of filters of various materials are as follows:

Structure and principleJacketed filter is mainly composed of connecting pipe, cylinder, filter basket, flange, flange cover and fasteners. Installed on the pipeline can remove large solid impurities in the fluid, so that the machinery and equipment (including compressors, pumps, etc.) and instruments can work and operate normally, so as to stabilize the process and ensure safe productionWorking principleWhen the liquid enters the filter basket through the cylinder, the solid impurity particles are blocked in the filter basket, and the clean fluid is discharged from the filter outlet through the filter basket. When cleaning is needed, unscrew the screw plug at the bottom of the main pipe, drain the fluid, remove the flange cover, and reinstall it after cleaning. Therefore, it is very convenient to use and maintainScope of applicationThe filter produced by our company has the advantages of compact structure, large filtering capacity, small pressure loss, wide application range, convenient maintenance and low price. Its main applicable materials are: 1. Weakly corrosive materials in chemical and petrochemical production, such as water, oil products, ammonia, hydrocarbons, etc2. Corrosive materials in chemical production, such as caustic soda, soda ash, concentrated and dilute sulfuric acid, carbonic acid, aldehyde acid, etc3. Low temperature materials in refrigeration, such as liquid methane, liquid ammonia, liquid oxygen and various refrigerantsTechnical parametersLT GS - Ⅲ jacketed straight through filter  Nominal diameter DN & nbsp Structure size Plug specification L H H1 Steam pressure Ф DO a b W 25 230 350 180  & le; 1.01Mpa   108 G3/4‘& rsquo; G3/4‘& rsquo;   R3/4‘& rsquo; 32 250 360 180 108 G3/4‘& rsquo; G3/4‘& rsquo; 40 320 430 210 159 G3/4‘& rsquo; G3/4‘& rsquo; 50 320 430 210 159 G3/4‘& rsquo; G3/4‘& rsquo; 65 470 490 250 273 G3/4‘& rsquo; G3/4‘& rsquo; 80 480 530 290 273 G1‘& rsquo; G1‘& rsquo; 100 520 600 345 325 G1‘& rsquo;

Working principleWhen the liquid enters the filter basket through the cylinder, the solid impurity particles are blocked in the filter basket, and the clean fluid is discharged from the filter outlet through the filter basket. When cleaning is needed, unscrew the screw plug at the bottom of the main pipe, drain the fluid, remove the flange cover, and reinstall it after cleaning. Therefore, it is very convenient to use and maintainScope of applicationThe filter produced by our company has the advantages of compact structure, large filtering capacity, small pressure loss, wide application range, convenient maintenance and low price. Its main applicable materials are:1. Weakly corrosive materials in chemical and petrochemical production, such as water, oil products, ammonia, hydrocarbons, etc2. Corrosive materials in chemical production, such as caustic soda, soda ash, concentrated and dilute sulfuric acid, carbonic acid, aldehyde acid, etc3. Low temperature materials in refrigeration, such as liquid methane, liquid ammonia, liquid oxygen and various refrigerantsTechnical parametersLT GS Ⅱ high in low out type LT GS Ⅱ high inlet and low outlet type DN50 ~ dn250mmLT GS Ⅱ high inlet and low outlet type DN300 ~ DN500 mm  Nominal diameter dn Structure size Pipe plug H3 H1 H2 L Ф DO W 40 340 120 100 280 133 　ZG3/4‘& lsquo;  50 340 120 100 280 133 65 400 160 110 330 133 80 460 180 140 340 219 100 550 220 170 400 219 125 630 310 190 480 273 150 720 310 220 500 273 200 900 390 280 560 325 250 1070 480 320 660 426 300 1300