Pump Cartridge
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 NEW 6 Pack INTEX Pool Easy Set Filter Cartridge Type A $19.39 Time Remaining: 13d 4h 59m Buy It Now for only: $19.39 Buy It Now | Add to watch list |
 SPA GUY SPAS New 8 person Mystic hot tub tubs $4,000.00 Time Remaining: 1h 23m Bid now | Add to watch list |
 ABOVE GROUND POOL PUMP AND SAND FILTER FOR INTEX FSP 14 $127.50 (8 Bids) Time Remaining: 2h 59m Bid now | Add to watch list |
 New Intex Easy Set 1500 GPH Pool Filter Pump w Timer $66.98 Time Remaining: 17h 24m Buy It Now for only: $66.98 Buy It Now | Add to watch list |
 ABOVE GROUND POOL PUMP AND SAND FILTER FOR INTEX FSP 14 $99.00 (1 Bid) Time Remaining: 11h 3m Bid now | Add to watch list |
 NEW 6 Pk INTEX Pool Easy Set Filter Cartridge Type B $31.95 Time Remaining: 11d 14h 13m Buy It Now for only: $31.95 Buy It Now | Add to watch list |
 SPA GUY SPAS New 8 ft Fiji hot tub tubs $4,500.00 Time Remaining: 1h 4m Bid now | Add to watch list |
 New INTEX 530 GPH Easy Set Pool Filter Pump 58603 603 $30.95 Time Remaining: 13d 13h 24m Buy It Now for only: $30.95 Buy It Now | Add to watch list |
 SPA GUY SPAS New 7 Foot SEASONS hot tub tubs $4,000.00 Time Remaining: 1h 35m Bid now | Add to watch list |
 EUC Aquabot Industrial Z Robotic Pool Cleaner $485.00 (6 Bids) Time Remaining: 1d 8h 34m Bid now | Add to watch list |
 INTEX 1000 GPH Easy Set Swimming Pool Filter Pump 637R $41.50 Time Remaining: 23d 11h 44m Buy It Now for only: $41.50 Buy It Now | Add to watch list |
 Hayward C1200 Star Clear pool filter deal complete 1 1 2 C 1200 w cartridge $182.50 (8 Bids) Time Remaining: 11h 3m Bid now | Add to watch list |
 Intex 1000 gph 56637 Above Ground Pool Filter Pump NEW $41.95 Time Remaining: 1d 6h 14m Buy It Now for only: $41.95 Buy It Now | Add to watch list |
 Hayward C1200 Star Clear pool filter deal complete 1 1 2 C 1200 w cartridge $41.00 (3 Bids) Time Remaining: 4d 11h 3m Bid now | Add to watch list |
 INTEX 2650 GPH Above Ground Pool Sand Filter Pump $217.99 Time Remaining: 13d 12h 58m Buy It Now for only: $217.99 Buy It Now | Add to watch list |
 TIGER SHARK QC ROBOTIC POOL ROBOT CLEANER ELECTRONIC PLUG IN CORD RC9990 HAYWARD $899.50 (1 Bid) Time Remaining: 10h 9m Bid now | Add to watch list |
 Hayward Power Flo LX Above Ground 15 HP SP1580X15 Swimming Pool Pump 115Volt $158.00 Time Remaining: 20d 6h 28m Buy It Now for only: $158.00 Buy It Now | Add to watch list |
 INTEX 15 x 42 Easy Set Pool Complete Kit with GFCI 1000 GPH Filter Pump $206.99 (1 Bid) Time Remaining: 18h 26m Bid now | Add to watch list |
 HAYWARD TIGER SHARK ROBOTIC POOL VAC RC9950 WORKS W O FILTER OR PUMP FREE SHIP $892.00 Time Remaining: 12h 33m Buy It Now for only: $989.00 Buy It Now | Bid now | Add to watch list |
 New Intex Easy Set 1500 GPH Pool Filter Pump w Timer $65.99 Time Remaining: 9d 18h 35m Buy It Now for only: $65.99 Buy It Now | Add to watch list |
 Hayward C1200 Star Clear pool filter deal complete 1 1 2 C 1200 w cartridge $182.50 (16 Bids) Time Remaining: 3d 11h 3m Bid now | Add to watch list |
 Spa Frog 4 pack 3 Bromine 1 Mineral King Technology $40.99 Time Remaining: 23d 9h 35m Buy It Now for only: $40.99 Buy It Now | Add to watch list |
 TIGER SHARK QC ROBOTIC POOL ROBOT CLEANER ELECTRONIC PLUG IN CORD RC9990 HAYWARD $899.50 Time Remaining: 1d 8h 54m Buy It Now for only: $1,050.00 Buy It Now | Bid now | Add to watch list |
 Nature 2 Spa Mineral Sanitizer 2 Pack and Test Strips Combo Pack $38.95 Time Remaining: 1d 12h 9m Buy It Now for only: $38.95 Buy It Now | Add to watch list |
 SPA GUY SPAS New 8 foot Bali hot tub tubs $4,500.00 Time Remaining: 5h 20m Bid now | Add to watch list |
 NEW 12 Pk INTEX Pool Easy Set Filter Cartridge Type B $61.49 Time Remaining: 22d 11h 32m Buy It Now for only: $61.49 Buy It Now | Add to watch list |
 ABOVE GROUND POOL PUMP AND SAND FILTER FOR INTEX FSP 14 $99.00 Time Remaining: 2d 11h 3m Bid now | Add to watch list |
 Hayward C1200 Star Clear pool filter deal complete 1 1 2 C 1200 w cartridge $182.50 (24 Bids) Time Remaining: 2d 11h 13m Bid now | Add to watch list |
 Pentair Clean Clear 520 filter C7472 PACK OF 4 PCC130 $197.25 Time Remaining: 28d 12h 41m Buy It Now for only: $197.25 Buy It Now | Add to watch list |
 INTEX 32 x 16 x 52 Ultra Frame Rectangular Swimming Pool Deluxe Set 54987EG $2,198.00 Time Remaining: 1d 17h 53m Buy It Now for only: $2,418.95 Buy It Now | Bid now | Add to watch list |
 6 PACK Intex TYPE A Swimming Pool Above Ground Filter Cartridges 59900 $19.44 Time Remaining: 13d 6h 19m Buy It Now for only: $19.44 Buy It Now | Add to watch list |
 Hayward C1200 Star Clear pool filter deal complete 1 1 2 C 1200 w cartridge $182.50 (4 Bids) Time Remaining: 1d 13h 54m Bid now | Add to watch list |
 3 Pack Nature 2 Spa Mineral Sanitizer Hot Tub Cartridge $51.95 Time Remaining: 9d 5h 10m Buy It Now for only: $51.95 Buy It Now | Add to watch list |
 NEW WITH FILTER INTEX POOL PUMP 637R $9.99 (1 Bid) Time Remaining: 4d 16h 23m Bid now | Add to watch list |
 Swimming Pool sand Spa Filter Cartridge Unicel C 7442 $22.00 Time Remaining: 15h 57m Buy It Now for only: $25.00 Buy It Now | Bid now | Add to watch list |
 INTEX 1000 GPH Easy Set Pool Filter Pump w GFCI 56637EG $41.75 Time Remaining: 4d 9h 34m Buy It Now for only: $41.75 Buy It Now | Add to watch list |
 SPA GUY SPAS New 7 Foot SPS 52 hot tub tubs $3,800.00 Time Remaining: 9h 45m Bid now | Add to watch list |
 Intex Easy Set 1500 GPH Pool Filter Pump + Adapters $84.99 Time Remaining: 5d 16h 57m Buy It Now for only: $84.99 Buy It Now | Add to watch list |
 INTEX 1500 GPH Krystal Clear Pool Filter Pump w Timer $41.00 (18 Bids) Time Remaining: 1d 19h 30m Bid now | Add to watch list |
 Spa Frog Mineral Replacement Cartridge 3 pack 01 14 3812 $55.99 Time Remaining: 23d 9h 48m Buy It Now for only: $55.99 Buy It Now | Add to watch list |
 HAYWARD TIGER SHARK ROBOTIC POOL VAC RC9950 WORKS W O FILTER OR PUMP FREE SHIP $892.00 Time Remaining: 1d 12h 43m Buy It Now for only: $989.00 Buy It Now | Bid now | Add to watch list |
 Nature 2 Express Zodiac Replacement Pool Mineral Cartridge W28175 $69.99 Time Remaining: 9d 8h 32m Buy It Now for only: $69.99 Buy It Now | Add to watch list |
 INTEX 15 x 48 Easy Set Swimming Pool Set with 1000 GPH GFCI Filter Pump $288.99 Time Remaining: 3d 16h 11m Buy It Now for only: $318.95 Buy It Now | Bid now | Add to watch list |
 ABOVE GROUND POOL PUMP AND SAND FILTER FOR INTEX FSP 14 $99.00 (1 Bid) Time Remaining: 5d 15h 5m Bid now | Add to watch list |
 Intex Swimming Pool 2500 GPH Filter Pump + 6 Filters $129.99 Time Remaining: 12d 17h 25m Buy It Now for only: $129.99 Buy It Now | Add to watch list |
 INTEX 1200 GPH Krystal Clear 1 4 HP Pool Sand Filter Pump w GFCI 56685EG $143.00 Time Remaining: 3d 17h 52m Buy It Now for only: $158.95 Buy It Now | Bid now | Add to watch list |
 PLEATCO PAP100 4 FOR PENTAIR PREDATOR CLEAN CLEAR C 9410 FC 0686 CARTRIDGE $47.75 Time Remaining: 12d 15h 7m Buy It Now for only: $47.75 Buy It Now | Add to watch list |
 SPA GUY SPAS New 8 ft Comet hot tub tubs $4,500.00 Time Remaining: 13h 9m Bid now | Add to watch list |
 Nature2 Zodiac Express Swimming Pool Mineral Sanitizer Cartridge W28175 $68.93 Time Remaining: 25d 10h 30m Buy It Now for only: $68.93 Buy It Now | Add to watch list |
 INTEX 1500 GPH Easy Set Pool Filter Pump w GFCI 12 Type A Filter Cartridges $106.99 Time Remaining: 2d 17h 57m Buy It Now for only: $118.95 Buy It Now | Bid now | Add to watch list |
 C 8316 Unicel Filter Hayward CCX1500RE OEM Replacement $49.99 Time Remaining: 9d 6h 44m Buy It Now for only: $49.99 Buy It Now | Add to watch list |
 SPA GUY SPAS New 8 person MPS 52 hot tub tubs $3,800.00 Time Remaining: 13h 23m Bid now | Add to watch list |
 INTEX 20 ft x 12 ft x 48 in Oval Frame Pool Set w Cartridge Filter Pump $200.00 (1 Bid) Time Remaining: 2d 7h 43m Bid now | Add to watch list |
 2 PACK INTEX 15 Diameter X 59 Long Filter Accessory Pool Hoses with Nuts $36.95 Time Remaining: 27d 9h 27m Buy It Now for only: $36.95 Buy It Now | Add to watch list |
 INTEX 2000 GPH GFCI Saltwater Chlorinator Swimming Pool Pump 6 Type B Filters $298.00 Time Remaining: 2d 16h 37m Buy It Now for only: $328.95 Buy It Now | Bid now | Add to watch list |
 INTEX 1600 GPH Saltwater System Sand Filter Pump Set $349.00 Time Remaining: 9d 6h 56m Buy It Now for only: $349.00 Buy It Now | Add to watch list |
 INTEX 15 x 36 Easy Set Swimming Pool Set with 1000 GPH Pump $146.99 Time Remaining: 1d 16h 23m Buy It Now for only: $162.95 Buy It Now | Bid now | Add to watch list |
 Intex Aboveground 2500 Gallon Cartridge Filter Pump System 56633EG $119.00 Time Remaining: 11d 11h 33m Buy It Now for only: $119.00 Buy It Now | Add to watch list |
 INTEX 15 x 42 Easy Set Pool Complete Kit with GFCI 1000 GPH Filter Pump $206.99 (1 Bid) Time Remaining: 1d 18h 6m Bid now | Add to watch list |
 TIGER SHARK QC ROBOTIC POOL ROBOT CLEANER ELECTRONIC PLUG IN CORD RC9990 HAYWARD $899.50 Time Remaining: 2d 8h 54m Buy It Now for only: $1,050.00 Buy It Now | Bid now | Add to watch list |
 New Intex Pool Pump Filter 59905 Type B Filters Case 6 $32.75 Time Remaining: 26d 16h 35m Buy It Now for only: $32.75 Buy It Now | Add to watch list |
 INTEX 2500 GPH Krystal Clear Swimming Pool Filter Pump V Trap Vac Vacuum $138.00 Time Remaining: 2d 15h 56m Buy It Now for only: $152.95 Buy It Now | Bid now | Add to watch list |
 New Replacement Cartridge Filter fits Hayward CX1200RE $50.68 Time Remaining: 11d 12h 29m Buy It Now for only: $50.68 Buy It Now | Add to watch list |
 INTEX 1600 GPH Krystal Clear Sand Filter Pool Pump Saltwater System $328.00 Time Remaining: 3d 18h 10m Buy It Now for only: $361.95 Buy It Now | Bid now | Add to watch list |
 INTEX Krystal Clear 1600 GPH Above Ground Swimming Pool Sand Filter Pump 56673EG $156.99 Time Remaining: 10d 6h 30m Buy It Now for only: $156.99 Buy It Now | Add to watch list |
 HAYWARD TIGER SHARK ROBOTIC POOL VAC RC9950 WORKS W O FILTER OR PUMP FREE SHIP $892.00 Time Remaining: 2d 12h 43m Buy It Now for only: $989.00 Buy It Now | Bid now | Add to watch list |
 4 PACK Pleatco PCC105 Fits Pentair Clean Clear Plus 420 Filter C 7471 R178584 $163.94 Time Remaining: 8d 5h 45m Buy It Now for only: $163.94 Buy It Now | Add to watch list |
 INTEX 24 x 12 x 52 Ultra Frame Rectangular Swimming Pool Set 54977EG $1,448.00 Time Remaining: 3d 17h 3m Buy It Now for only: $1,593.95 Buy It Now | Bid now | Add to watch list |
 INTEX 15 x 42 Metal Frame Swimming Pool Set 56948EB $368.99 Time Remaining: 3d 17h 52m Buy It Now for only: $406.95 Buy It Now | Bid now | Add to watch list |
 Sta Rite System 2 Filter Replc PLM150 27002 0150S 150sq $163.99 Time Remaining: 11d 9h 40m Buy It Now for only: $163.99 Buy It Now | Add to watch list |
 ZAPPY Automatic Vac Above Ground Pool Vacuum Cleaner $68.95 Time Remaining: 1d 17h 3m Buy It Now for only: $76.95 Buy It Now | Bid now | Add to watch list |
 PLEATCO PA120 for Hayward Star Clear Filter C 1200 Unicel C 8412 Pool Cartridge $54.95 Time Remaining: 19d 5h 34m Buy It Now for only: $54.95 Buy It Now | Add to watch list |
 ABOVE GROUND POOL PUMP AND SAND FILTER FOR INTEX FSP 14 $99.00 (1 Bid) Time Remaining: 2d 2h 57m Bid now | Add to watch list |
 INTEX 530 GPH Easy Set Pool Filter Pump 58603 603 $30.95 Time Remaining: 11d 12h 6m Buy It Now for only: $30.95 Buy It Now | Add to watch list |
 PLEATCO PA120 for Hayward Star Clear Filter C 1200 Unicel C 8412 Pool Cartridge $53.95 Time Remaining: 1d 15h 18m Buy It Now for only: $60.95 Buy It Now | Bid now | Add to watch list |
More Great Information on Pump Cartridge:
Using Ultrananocrystalline Diamond To Improve Mechanical Seal Performance
A mechanical seal is a critical component whose useful life significantly impacts the overall reliability and robustness of pump or centrifugal compressor. Unscheduled or premature failure of the seal leads to increased maintenance and increased overall equipment costs to the user. The overall performance of a mechanical seal often is most affected by the performance of the faces and the intervening lubricating film. This primary element of a mechanical seal represents a classic problem in the science of tribology, the study of friction, wear and lubrication.
The demands placed on seal faces require careful attention to the issues of wear resistance, chemical compatibility, mechanical and thermal properties—all of which are determined by the end use application and overall seal design. When a mechanical seal is used in a pump, the liquid in the pump is used to cool and lubricate the seal faces. The seal faces are in sliding contact and prevent the liquid in the pump from reaching atmosphere. This contact also generates frictional heat that must be removed from the seal faces. Failure to remove this unwanted heat often results in the boiling of the lubricating liquid film at the seal faces, usually leaving a deleterious residue and causing premature failure of elastomeric components in the seals (static-secondary seals). Both of these undesirable effects of elevated temperatures lead to premature seal failure.
The ability to maintain coolant on the seal face is even more critical when compounded by the demands associated with the pumping of abrasive media or a pump’s ability to withstand intermittent and unscheduled coolant loss. The ability to run two hard-faced seal materials such as SiC against each other often is desirable but not practical due to the premature failures that result from elevated temperatures caused by friction at the seal interface.
In the case of a centrifugal gas compressor, a noncontacting mechanical seal is used to contain the gas within the machine. A lift mechanism, such as spiral grooves, is included in the design of the seal. During operation the seal faces do not make contact except at startup and shutdown. The intense frictional heat occurring at this time must be controlled or face damage can occur.
Based on the benefits nature’s hardest substance would appear to offer for this application, the idea of using the diamond as a wear resistant face material in seals is not new. Diamond also possesses many other attractive properties, including extremely high thermal conductivity and chemical resistance. Unfortunately, previous attempts at integrating diamond into seal faces failed due to difficulties in ensuring that the diamond face presented the necessary surface finish required for such a demanding tribological application. Following extensive research and development and improvements in equipment and processes, those problems appear to have been solved.
Today, a new form of diamond with ultrananocrystalline grains has entered the industrial arena. Invented at Argonne National Laboratory and commercialized for seals by John Crane, Inc. and Advanced Diamond Technologies, Inc., UNCD?, as it is commercially known, provides the surface roughness typical of normal, unprocessed seal. UNCD has been dynamically tested and shown to signifi- cantly reduce the frictional heat and increase the life of the seal faces in accelerated wear. The work highlighted in this article was completed, in part, by funding from the National Science Foundation and the Department of Energy.
Manufacturing hurdles
One of the major obstacles in providing a diamond-treated surface for a mechanical seal is maintaining the surface flatness and roughness necessary to achieve sealing. Early work in diamond surfacing placed extreme demands on finishing and polishing the diamond to meet the required metrology and geometric specifications of a seal face. Surfaces were rough and had a high degree of waviness. Additional lapping of the diamond surface to achieve sealing could not be done cost-effectively due to the hardness of diamond. Consequently, many researchers abandoned the idea of using diamond as a surface for seals.
The development of ultrananocrystalline diamond (UNCD), though, generated renewed interest in diamondtreated seal faces. The process demonstrated that the base material could be treated with diamond without changing its original flatness. This was a major breakthrough in the manufacturing technology for diamond-structured surfaces. At last, diamond could be applied to a seal face without any further work to achieve the desired flatness for sealing fluids. Moreover, UNCD, unlike other diamond films, has nanometer-scale roughness that allows as-deposited UNCD to have sufficient smoothness so that it doesn’t degrade a soft counterface. In other words, UNCD works in both hard on hard and hard on soft sealing applications.
Still, there was an additional obstacle to overcome. Work to this point was done to transfer this laboratory-scale process to meet the demand of seal production. New equipment and processes had to be designed to handle a larger volume of seals at one time. Once this was done, the new equipment and processes had to be validated. Tests were run on production parts and compared to those run on the smaller scale equipment. Continuous testing confirmed that the production parts met the early results for friction and wear testing of parts manufactured on the smaller scale equipment.
Friction testing
Friction plays an important part in the success or failure of a set of seal faces. Not all materials make good seal faces. Some materials have properties that hold heat in the seal face, while others wear too much. Applying diamond to a seal face reduces both friction and wear. One of the best substrate materials for diamond is silicon carbide. Silicon carbide and diamond have very similar material properties. Results of friction testing for UNCD on a SiC face are as follows:
Carbon running against UNCD on silicon carbide μ = 0.07
Silicon carbide running against UNCD on silicon carbide μ = 0.04
The results for carbon versus UNCD on silicon carbide were expected. This is a normal value for friction in seal design work. The results for silicon carbide versus UNCD on silicon carbide were very good. When silicon carbide runs against itself without any diamond treatment, the coefficient of friction is greater than 0.1. For those applications requiring hard-on-hard seal faces, the application of a diamond-treated seal face is a major improvement. Several groups of seal faces have been tested, resulting in the same friction values.
Dynamic testing
An important step in qualifying materials for a mechanical seal is dynamic testing in Hot Water. This test involves running a 1.375 diameter seal in 250 F water at 100 psig and 3450 rpm. At these conditions, the pressure-velocity value for the seal is 170,000 psi x ft/min. This test in hot water is very demanding of the seal. Each test run consists of running a group of four pumps, three fi tted with seals treated with diamond and one without a treated surface. The results of hot-water testing were outstanding for the diamond-treated seals. Very minimal or no measureable wear occurred over the 100-hour test. The untreated silicon carbide seals in each case failed due to heavy wear across the entire seal face.
These results were typical for each test run. The UNCD-treated surfaces were in excellent condition with very little carbon wear. The untreated seal had high wear for both the carbon and silicon carbide seal faces.
An interesting measurement taken after testing was surface flatness. The diamond-treated
mechanical seal
had no change in surface flatness during testing. The untreated silicon carbide had an increase of 240 microinches. This is an indication that the untreated surface was running hotter than the diamond-treated surface. Continued increases in flatness or surface waviness will lead to unwanted seal leakage and wear.
Does anyone know why insulin needs to be kept cold?
Why do we have to keep insulin cold while storing it, but allow it to stay warm while in an pump cartridge? I have to change my cartridge every four or five days, and this seems like a long time to something warm that has to be refrigerated.
Insulin does not NEED to be kept cold. It thrives in most people's bodies at 98.6 degrees. However, after a time, insulin, as with any hormone, productivity decreases. On top of that, insulin can last several years refrigerated compared to a few months at room temperature. So, insulin does not have to be refrigerated, but it keeps longer at cooler temperatures.
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