The function of the fuel filter
The presence of rust, sand, dust, wax crystals and water in the fuel of an internal combustion engine will cause wear and tear to the gear pump and precision couplings of the injectors in the fuel pump. In order to minimise the contaminants in the fuel pump (including the delivery pump and injection pump) and injectors of internal combustion engines, high quality fuel filters are installed in the fuel system of internal combustion engines.
The parameter of LF3802
| Model |
LF3802 |
| ID |
15mm |
| OD |
107mm |
| H |
172mm |
Main performance indicators of fuel filters
1)Filtration efficiency
The number of particles of a certain size removed by the filter element as a percentage of the total number of particles of that size added is called the filtration efficiency of this size;
2) Bubble point pressure
Immerse the filter element in the test oil at the specified depth and internal pressure, and measure the pressure value when the first series of bubbles start to emerge from the filter element assembly.
3)Original resistance and end resistance
The original resistance is the pressure difference between the inlet and outlet of the filter of the new cartridge at the rated flow rate.
The working principle of the fuel filter
The diesel fuel pumped out by the oil delivery pump enters the shell through the inlet pipe interface, then penetrates the filter core and enters the inner cavity of the filter element, and finally outputs to the injection pump through the outlet pipe interface, during which the mechanical impurities and dust in the diesel fuel are filtered out and the water is precipitated in the shell to achieve the effect of filtering the diesel fuel.
Fuel filter maintenance
Fuel filters should be changed regularly as they become dirty or even clogged after a certain period of time. The recommended interval for replacing fuel filters is every 16,000 km of operation for cars or on-road vehicles and 250 hours or 6 months for off-road vehicles (whichever comes first).
For filter element replacement, the fuel system should be drained of air after replacement. For spin-on fuel filters (when the fuel system does not have a hand pump), the filter should be filled with the required amount of fuel and then mounted on the filter base to ensure a tight seal.
In the filter replacement process, pay special attention to the exhaust treatment or filter is not filled with fuel on the engine start, otherwise it will cause the engine to burn tile, crankshaft clamping, parts dry friction and wear, damage and a series of serious problems.
The fuel filter is installed on the engine by the fuel filter to complete, in order to make the engine fine filter and fuel pump can have a long service life, should be installed between the fuel pump and the fuel tank a coarse filter. To prevent the coarse filter from throttling the fuel supply, the size of the coarse filter must be matched to three times the full load fuel volume at rated speed.
If the fuel used has a high water content, an oil/water separator should be installed or a filter material with high oil/water separation efficiency should be used and the water should be drained regularly.
The correct way to install the fuel filter
1. Screw the fuel filter until the seals make contact, then tighten 3/4 turn.
2. If using a two-stage fuel filter, install it in the same way as above.
Installation and maintenance of the fuel filter with plunger pump de-watering
1. Lubricate the seal to ensure a reliable seal and to prevent damage to the seal.
2. Screw the filter until the seal is in contact, then tighten 3/4 turn to tighten, then use a special tool to tighten the water cup with a torque of about 15N.m.
3. When using manual bleeding, make sure the venting bolt is fully open, otherwise the hand pump will be damaged; when oil starts to flow out of the bolt opening, then tighten the venting bolt.
4. Check the seal.
5. Tighten again if necessary.
6. When the water cup is full, drain the water via the drain valve.
7. The driver should observe the water level of the "water relief filter" every day and drain the water in time.
What to pay attention to when replacing the diesel filter:
1. The new diesel filter should be filled with clean diesel oil. So that the air can be removed as soon as possible.
2 . Apply a layer of engine oil on the rubber ring to achieve a good sealing effect.
3. After the diesel filter has been fitted. Remember to exhaust the air (at the bleed screw or oil outlet pipe).
Company Profile:
Xinxiang Lifeierte Filter Co., Ltd. was established in 2008, focusing on the fluid environmental protection industry. It is a professional research and development, manufacturing and sales of filtration equipment, air purification equipment, seawater desalination equipment, sewage treatment equipment, comprehensive utilization of waste resources equipment, environment A joint-stock high-tech enterprise that protects special equipment. The company successfully landed on the New Third Board in July 2016, becoming one of the few enterprises in the filtration industry that simultaneously develops physical production and capital operation. The company strives for survival by quality, development by innovation, and has a complete management system. It has passed the certification of high-tech enterprises, Xinxiang Intelligent Fluid Purification Engineering Technology Research Center, and obtained ISO9001, ISO14001, ISO45001, intellectual property standards and CE, etc. Multiple management system certifications.
Survive by quality, develop by quality
Sample room
Professional testing laboratory
Factory shot
More model number:
FF5612 LF16011, LF16015, LF16034, LF3321, LF3336, LF3342, LF3345, LF3349, LF3352, LF3413, LF3644, LF3654, LF3805, LF3806, LF503, LF691,LF9070,LF3970,LF670,LF777,LF3345,LF3349,LF3000,LF9009,LF9000,LF9001,LF9080,FF5052,FF105,FF105D,FF42000,FF202,FF5327,FS1000,FS1022,FS1212,FS1280,FS19616,FS1251,FS19728, FS19763,FS19855,FS19608,FS19596,FS19594,FS19593,FS19591,FS19540,FS19519,FS1294,FS1287,FS1254,FS1251,FS1242,FS1240,FS1235,FS1041,FS1040,FS1022,FS1007,FS1006,FS1003,FF5612,FF5580,FF5488,FF5480,FF5289,FF5706,LF16352,FF5272,FF5264,FF5207,FF5206,FF5037,FF5020,FF5019,FF2200,FS19624,AF4980KM, AF4966,AF4942,AF4895,AF4878,AF4746,AF4728,AF4720,AF4674,AF4638,AF4608,AF1913,AF25268,AF25269,AF4539,AF4559,AF1913AF4558,AF4550,AF4050,AF364,AF25962,AF25954,AF25708M,AF25632,AF25631,AF25544,AF25468,AF25330,AF25317,AF25139M AF25305,AF25294,AF25278,AF25239,AF25238,AF25084,AF1969M,AF1850,AF1831,AF1774,AF872,AF1969,AF928,AF25276,AF25274,AF25738,AF25739,AF25270,AF25271,AH1103,AH1135,AF1181,WF2126,WF2071,WF2072,WF2073,WF2074,WF2075,WF2076,WF2071C,FH23604M,FH236, FS20156 ,FS20156 WF2073 KW1524 LF3345 FF5052 FS1280 WF2073 KW1833 LF3349
FF5052 FS1280 AF1811 LF9009 FF5052 FS1280 WF2075 LF9009
FF5052 FS1280 WF2075 AF25738/739 AF928M FS1000 WF2075 AF928M
LF9009 FS1212 WF2076 AF890 AF891 AF4548 FS1212 LF777 LF670
WF2076 AF872 FS1212 A478-020-AM-29 FF202 AF872 AH1135 FS1006
AF25278 FS1006 WF2076 AH1100 WF2075 AF25708M LF9050 FF5782
AF25278 LF3325 AF25708 FS19870 LF9050 WF2075 LF9009
1r-0718 4H-8792 08130 102011 4N0015 6L4714 8N6309 8N2556 1R-0749 4P-0711
4P-0710 4L9852 1P-2299 1P-0750 1P-0753 1P-0712 1174089 133-5673 1R-0762 1R-0770
7W-5313 7M-9045 7W-5495 131-8822 4M9334 9S9972 61-2502 61-2503 61-2504 4M-8047 4N-0326 4N-0313 1R-0721 4P-2839 1R-0756 1R-0716
4N-0326 51-8670X 1R-0739 51-7950 4207841 E8570011 IR-0728 1R-0719 1R-0722 126-2081
7W-5216 61-2505 61-2506 8N-6309 8N-2556 4P-0710 4P-0711 4N-0015 6L-4714 6I-2509 6I-2510 7Y-0404
5I-5208 7Y-1323 7Y-1322 A131-8822 A131-8821 4L-7575 6I-6582 A110-6326 A131-8822X A131-8822X 6I-2501
6I-2502 1R-0659 1R-0724 8N-6309 P77-7875 6L-6873 1R-0749 1R-0712 1R-0751 1R-0750
1R-0739 1R-0659 1R-0726 4P-28739 1R-0749 1R-0712
AF857, AF351K,AF872,AF928,AF928M,AF879/880/890,AF891M,AF899M,AF947,AF955,AF1850,AF1867,AF25738/25739,AF25452/25453,AF25276/25277,AF25270/25277LF9009,LF3000,LF670,LF777,LF3325,LF3345,LF3349,LF3784,LF16013,LF3812,LF3720,LF3753,LF3809,LF16001,LF3802 FF105,FF202,FF5052,FF5328,FF5403,FF5484,FF5489,FF5293,FF5294,FF5339,FF5292,FS1000,FS1212,FS1216,FS1280.FS19607,FF5327,FF5359,FF5476,FF5477,FF5363 WF2071C,WF2072,WF2073,WF2074,WF2075,WF2076CUMMIWS: AF478 AF1969 AF947 AF872 AF4548 AF928 AF1850 AH1183 AH1135 AH1103 AH1100 AF25278 AF25708 AF1811 AF25593 AF25812 AF25813 AF890 AF891 AF25276 AF1638 26510214 3018042 3013210 3013211 3050498 AF25137 AF351KM AF25126 AF25130M AF25137M AF25437 AF25111 AF25125M AF25121M AF26173 AF4713 AF25066 AF332 FF5052 FF105 FF105D FF1212 FF202 FS1280 FS1251 FS1000 FS1006 FS1040 WF2071 WF2054 WF2075 WF2076 WF2073 WF2126 FF5485 FS1242 LF16015 LF3000 LF9009 LF9001 LF9000 LF9024 LF670 LF777 LF3225 LF3349
IR1807. IR0658. IR0734. IR0716. IR0739. IR0726. IR0713. IR1808. 7W2327. 8N9586.
IR0712. IR0750. IR0749. IR0751. IR0762. IR0753. IR755
6I-2501-10. 1318822. 1421340. 1421339. 151-7737. 24650010. 2465009. 4L-0015. 6L-4714
133-56731. 1290373. IR0770(326-1644). 117-4089. IR0771(326-1643). 326-1641. 1346307(2020)
IR0735. IR0741. 126-2081. 093-7521. 4R0710. 4P-0711. 8N6309. 8N2556. 4N3849.
478736.477556-5. 466634. 466634-3. 3831236. 477556. 420799-9. 11989962.
21040164. 20998807. 11708550. 11708551.5I8670
20549350. 201040558. 20998805. 20976003. 20549350. 20430751. 20514654. 20549350. 3825133. 3817517. 3838852. 466987-5. 11711074. 11110683. 8193841. 8159975.
20514654. 20480593. 8159975. 11110474. 11110668. 3817517.
21010247. 21020091. 21010243. 21010252. 20405827. 20405830. 20405830. 24424482. 3840036. 3825778-8. 3826215-0. 3827587. 3827643.3840033. 3840034.
1699830-4. 20532237. 21192875.
14509379. 103061460. 14508017. P805. P813. RP925
RE54120. RE530107. RE533910. RE57395. RE519626. RE504836. RE58935. RE57394. RE59754. AR58956. T19044.
RE65413. RE50728. RE62418. RE507284. RE62418. RE60021. RE50455. RE532952. AR50041. AR86745.
ECB105012. RE62220. P524837. B085001. B125003. C065003. C085002. C085004. C105003. C105004. C125004.
RE62419. RE508633. RE520842. RE521248. RE522878. RE529643. RE531703. RE45864.
190758. 1903629. 1903630. 1903628. 1902076. 1902047. 1907567. 1907570. 1901964. 1905704. 2992242. 2992544. JX6115. JX663.JX679A.
1901605. CX684. 1902134 .CX653. CX637. 1902138. CX6194. CX703. CX6203. 1907640. 1908537. CX6372. 1908547. CX6253. 2992241. 2994048.
1901929. C444. C4189. 1902096-022. C453.
C24650/1. RK883A. C24650/1. RK833B. 8016967. 8016976. 8014390. 8014420. 8014490. 8014430. RK806A. FA6616A. K380RK815A. K754. 8046976. TK770. RK820A.
6136-51-5120. 6136-51-5121. 600-211-1231. 600-211-1340. 600-211-6240. 600-212-1511. 6742-014540. 6736-51-5140. 6736-51-5141.
6736-51-5142. 600-211-5140. 6742-01-4120. 6610-53-5120. 6610-50-5100.
600-71-6140. 600-311-1171. 600-311-3320. 600-311-3520. 600-311-3550. 600-319-3520. 600-319-3550. 600-311-3750. 600-311-8221. 600-311-6221. -600-311-7132. 600-311-7460. 600-311-8220. 600-311-8291. 600-311-8321. 600-311-9121. 600-71-611. 600-71-6130
600-311-2110. 600-311-3111. 600-311-3620. 600-311-4510. 600-319-4500. 600-311-3410. 600-319-3400. 600-319-3440. 6732-71-6120
144-60-11160. RP934. 141-60-18270. RP920. 145-49-32430. RP918. 175-49-11580. 281-16-11290. P808. 07063-01054. P812. 07063-01100. P820. 07063-1210. 07063-51210. P805. 145-48-32430. 154-19-1230. 424-16-11140. 385-101-0002.1 385-101-00022. 207-60-71181. P845. 569-43-8390
23518667. 23530411. 23530573(23518480). 5241840301. 524180010.
23518532(25011026). 23518528(25011024). 23518481. 23530642. 23518482(23530707). P556915. P5569196. P550132. AH1183. B125003. C105004. 01182256. 01174421. 01174416 21010247. 21377917
01180597/01174423. 01180596/01174424. 01174422/01181245. 01174696. 1168407. 1163398. 01172715. 04291642(PFF5602)
Contact us:
Nora Hou: +86 15537368730
Audited Supplier 
){kind=link}