May. 08, 2023
Whether it’s a dredge operation or an industrial water process, work goes on – day and night, worldwide. To minimise the risk of sudden pump failure, it’s important to predict the lifetime of your pump shaft seal. In this blog we share how you can measure the lifetime in a manual and digital way.
Condition monitoring enables you to keep track of your pump seal’s performance and plan maintenance in time, enabling a predictable lifetime and minimising the risk of for example sudden failures. You can measure your seal’s performance in different ways, ranging from a simple manual operation with a bucket and timer to a completely automated approach with a programmable logic controller (PLC).
If you want to manually monitor the seal’s condition, all you need is a bucket and stopwatch. The water from the Liquidyne® is eventually transported from the pump side to the drain side of the seal. At this point, you can use a bucket to collect the drain flow for a period of time (like 60 seconds) and record how much water you collected. Our specialists are often asked exactly what you should take notice of when checking the condition of the seal. Most important is to measure the following within fixed time intervals:
Water inflow and outflow (litres/hour)
Temperature difference between inflowing and outflowing water
A digital flow meter is used to measure the rate of flow of liquids, in this case water. For Liquidyne pumping applications, Lagersmit offers a range of approved, fully digital flow meters. By installing the non-mechanical flow meter in a pipeline from the pump, the flow is logged without disrupting the flow. The data can be logged locally at the pump site or, if you have a more advanced approach, in your data management system (PLC). If logged, you will see a similar graph to the figure above.
The state of the grooved bush is measured based on the flow. Due to the wear of the grooves on the grooved bush, the flow decreases over time. The lip seal will also have more contact with the running surface and allows less water to be transported over the bush. The water flow towards the drain decreases, and as a result the drain flow decreases.
Recording the drain flow from the moment the seal was taken into use allows for maintenance to be scheduled more efficiently and the maintenance interval to be maximised. When the drain flow is at 20% of the initial drain flow, you can plan maintenance. The most advanced way to monitor the condition of your seal is to connect the digital flow meter to a PLC.
The Liquidyne 3-stage is used as an example, but the digital flow meter can be applied on all Liquidyne seals. This means you can apply the flow meters on Liquidynes for dredge pumps, industrial (cooling) water or other pumps, jet pumps, gland pumps, and process pumps.
In the world of pumps, we want people to feel safe, secure and empowered, so you can drive your operation to the limit and beyond with Peace of Mind. Do you want to know more about how the Liquidyne can add value to your (pump) operation? Contact our expert Eric de Paauw!
Product Description
Floating oil seal 205-30-00052 floating oil seal size 101*125*30.2
1. Advantage:
Excavator spare parts in full-scale are available;
100% quality assurance, develop and manufacture follow original ones;
Small order allowed;
Reasonable stock and timely delivery;
Positive customer feedback from abroad market;
Excellent After-sales service.
2. Application
1. Current export market Taiwan, Europe, America, Asia, Africa, Middle East, etc
2. Fluid system (static&dynamic)
3. Pneumatic system (dynamic)
4. Oil or grease media sealing
5. Water media sealing
6. Automobile, motorcycle, industry, agricultural machinery, truck, buses, trailers,
exercise equipment.
7. Suit for:Komatsu,Kobelco, Hitachi, Sumitomo, Kato, Daewoo, Hyundai, EC.
3. Material
Other material of oil seal Silicone,Metal&stainless steel, PTFE, etc
Compound Hardness,Shore A Tensile strength,Mpa Elongation at break,% Temperature range NBR 60±5 ≥12 ≥300 -35℃~100℃ HNBR 60±5 ≥13 ≥350 -30℃~150℃
VMQ
(Silicone rubber)
60±5 ≥6 ≥300 -50℃~200℃
FPM/FKM
(Fluorine rubber )
60±5 ≥7 ≥200 -10℃~180
4. Sale related seal kits product
SEAL REPAIR KIT
BOOM CYL' SEAL KIT
HYDAULIC PIMP SEAL KIT
SERVO VALVE SEAL KIT
MAIN PIMP SEAL KIT
ARM CYL' SEAL KIT
PIOLVE VALVE SEAL KIT
O RING BOX
SOLENOID VALVE SEAL KIT
BUCKET CYL' SEAL KIT
CONTROL VALVE SEAL KIT
BREAKER SEAL REPAIR KIT
BREAKER SEAL REPAIR KIT
ADJ CYLINDER SEAL KIT
PUMP PLUNGE SEAL KIT
BREAKER SEAL REPAIR KIT
DRILLING RIG SEAL REPAIR KIT
CENTER JIONT KIT
GEAR PUMP SEAL KIT
CRANE SEAL REPAIR KIT
CONCRETE TRAILER PUMP SEAL KIT
SWING MOTOR SEAL KIT
AV SEAL KIT
GRADER SEAL REPAIR KIT
CRAWLER BULLDOZER SEAL KIT
TRAVEL MOTOR SEAL KIT
ROCK BREAKER SEAL KIT
LOADER SEAL REPAIR KIT
AERRIAL LADDER TRUCK SEAL KIT
SERVO VALVE SEAL KIT
MAIN PIMP SEAL KIT
5. Brand & Model
NO Product name Product size Number 1 R800 100*80*29 175-30-00702 2 R920 109*92*22 20Y-30-00041 3 R1100 110*91*32 1M8746 4 R1030 117*103.9*22 5 R1200 120*100*32 1M8748 6 R1010 120*101*30.2 205-30-00052 7 R1042 121*104.2*23.4 20Y-30-00101 8 R1220 122*102*33 205-30-00050 9 R1520 130*152*38 10 R1090 132*109*32 130-27-00020 11 R1150 137*115*31 150-27-00015 12 R1240 141.2*124.22 207-30-00101 13 R1270 146*127*33 IP7249 14 R1500 150*172*40 15 R1300 151*130*32 170-27-00010 16 R1430 156.2*143.26 5K5288 17 R1540 168*154*26 5K1078 18 R1485 170.8*148.5*31.5 175-27-00121 19 R1650 171.5*146.5*38 4K6049 20 R1600 180*160*32 180-27-00021 21 R1826 182.6*210*11.2 R178AB 22 R1650 184*165*30 R1650 23 R1630 191*163*38 7M0481 24 R1630(H) 191*163*46 8P1857 25 R1920A 192*215*16.5 26 R1715 194.5*171.5*29 27 R1750 194.5*175*28 28 R1760 195*176*15 R1760 29 R1800 198*180*11 30 R1775 200*177.5*32 31 R1780 200*178*38 4513173 32 R2010 201*230*13.2 R2010 33 R1880 204*188*14 R1880 34 R2090A 209*234*21 35 R1820 210*182*39 5M1176 36 R1910 210*191*14 37 R1920 215*192*33 207-27-00010 38 R2160A 216*245*10.5 39 R2160 216*260*13.5 40 R2410 220*241*12.5 R2410 41 R2460 220*246*18 42 R2050 227*205*30 GZ5820 43 R230PT 230*201*13 R230PT 44 R2090 234*209*42 HIT4110368 45 R2650 235*265*40 46 R2390 239*268*42 R2390 47 R2200A 240*220*32 GZ5880 48 R2200(H) 240*220*40 R2200 49 R2200 246*220*36 HIT4110369 50 R2470 247*284*13 51 R249AB 248*290*13 R249AB 52 R2500A 250*277*22 53 R2230 251*223*37 5M8647 54 R2235 251.5*223.5*46.4 8P1252 55 R2250 252*225*37 130-27-00010 56 R2310 259.6*231.6*38 5P5829 57 R2277 260.5*227.7*41 58 R2920 265*292*44 59 R2350 268*235*42 R2350 60 R2400 268*240*42 20Y-27-00111 61 R2470 269.5*247*40 62 R2450 274*245*42 63 R2500 277*250*44 R2500 64 R2600 288*260*40 14X-27-00100 65 R2650 292*265*44 6P3595 66 R2650A 293*265*38 5M1177 67 R2750 303*275*38 GZ5845 68 R2800 310*280*40 YN53D00008S023 69 R2820 314*282*40 R2820 70 R2950 328*295*40 150-27-00410 71 R2980 328*298*40 150-27-00025 72 R3000 328*298*40 R2980/R 73 R3000 328*298*40 R2980/R 74 R3400 338*368*40 R3400 75 R3180 346*318*38 5M7294 76 R3350 360*335*40 150-27-00020 77 R3660 366*394*20 78 R3400 368*339*40 R3400 79 R3550 381*355*38 17M-27-00102 80 R3660 394*366*38 175-27-00130/1696442 81 R3800 405*380*40 287-33-00010 82 R3870 415*387*38 JB5895 83 R4290 457*429.2*19 84 R450 58*45*21 110-30-00045 85 R430 58.2*43*24 110-30-00085 86 R480 62*48*24.8* HIT4110358 87 R575 74*57.5*25 88 R575 75*57.5*27.5 140-30-00040 89 R635 82.5*63.5*32.3 2M2858 90 R737 87*73.7*21.5 20Y-30-00070 91 R717 90*71.7*29 141-30-00610 92 R730 92*73*32.5 1M8747 93 R746 93*74.6*30 94 R770 93.3*77*29 150-30-00035
6. picture viewing
7. FAQ
Q1:Why choose our products:
1. We can provide you a wide range of oil seals.
2. Alibaba Assessed 6 year gold supplier.
3. Our oil seals has best quality and best service with competitive price.
Q2:
To which places have you exported?
A: North America, Europe, Middle East, Africa, Southeast Asia and so on.
Q3: How long is your delivery time?
A: Generally it takes 5-7 days if we have stock.
Q4:
How to guarantee your after sales service?
1. Strict inspection during production
2. Recheck the products before shipment to ensure our packaging in good condition
3. Track and receive feedback from our customer
Q5: Could you supply solutions to us?
A: Sure we can.
MORAL PHILOSOPHY: PUBLIC LETTER ,GOOD FAITH
The average life expectancy of your face seals varies from 4,000 to 12,000 hours. There are several factors at work when it comes to how long they last, and a good understanding of them will help you lengthen the life of your face seals.
Here are a few other Shop Talk Blog posts you might find interesting:
These seals go by several different names, all of which are correct: main seals, metal face seals, duo-cone seals, floating face seals, and floating seals. But regardless of their name, they always serve the same purpose. Here's how one of the authors at Machine Design explains face seals:
"The primary sealing interface is between rotating and stationary members that form a plane perpendicular to the shaft. The sealing area is a narrow ring where the two faces contact. One of the sealing faces is usually metal or ceramic and the other is usually graphite or plastic."
In the case of a final drive motor, a face seal is located where the hub and the axle come together. The narrow rings referred to in the definition are both precision-lapped (or ground) metal rings.
It is extremely important that face seals be installed correctly, and there are quite a few things that can go wrong during the installation. If you don't follow the installation instructions, you risk shortening the life of your face seals.
For example, damage such as gouges or scratches to the precision ground surfaces of the face seals can result in leaking. Be careful when handling the seal components, and don't unpack them until you are actually ready to install them.
This a brand new set of face seals ready for installation on a final drive motor.
It's extremely important the installation takes place in a clean work area and that your hands are clean, as well. Any dirt on the seal faces can lead to leaks! Avoid touching or handling the lapped seal faces and never seat the seals down on their faces.
Lubrication is also important:
Always use a lubricant to prevent the o-ring from tearing or rolling
Make sure the lubricant is compatible with the o-ring material (the wrong lubricant can cause the o-ring to weaken and possibly deteriorate)
Only use clean, fresh lubricant
In this video, we talk about how to go about installing face seals on a Bobcat T300 final drive motor.
Another key factor in the life of your face seals lies in the conditions your machine has been working in. For example, a machine doing swamp work is going to have external pressure on the seals due to be submerged underwater. That will reduce the life expectancy of the main seals, and there isn't really anything that can be done. Just recognize that the seals will need to be replaced sooner than on a machine that works on a construction site.
Undercarriage Condition
Exposure to extremely abrasive media can also lead to damaged seals, which is why it's important to clean the undercarriage of your machine on a regular basis. And that brings us to another factor that can reduce the lifespan of your face seals: dirt and debris packed around the final drive. If the undercarriage isn't cleaned on a regular basis, that debris will become more and more packed, even to the point of forcing the face seals apart.
On this final drive motor, so much hardened debris built up that the face seals were forced apart.
All you need to do is periodically use a pressure washer the clean the undercarriage. Taking the time to do this will help prevent the premature failure of these expensive seals. Just make it a part of your regular maintenance plan and you will see a difference in the condition of the undercarriage and the life of your face seals.
Face seals aren't cheap, and having them wear out prematurely can start to get expensive. The seals are costly, and so are the downtime and the manpower needed to get them correctly replaced. The good news is there are measures you can take to make sure the last:
Always follow the installation instructions for these seals
Only replace them in a clean environment
Keep your undercarriage clean.
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FOUNDED IN 1993
China SBT Oil Seal is an international company integrating design, research and development, production and processing.
No. 68, Hua'an Street, Renze District, Xingtai City, Hebei Province, China
+86 188 0309 4557
Won many honorary certificates through a number of patented inventions
