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Text version of the page
| A T | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ceramic Fiber Products | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ceramic Fiber Heaters Termination Options Continued Special Lead Orientation If the various standard strip lead orientations and pocket configurations are not suitable, special designs are possible. When ordering, please include drawings that show proposed locations. Leads Bent 90 Degrees The double twisted leads of full cylinder heaters can be bent 90 degrees to lay into slots and exit to the sides of the unit. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Special Add-On Lead Configurations The three termination options illustrated can be welded onto the stub at the heater pocket, or better, welded on at the end of a specified length of the regular strip lead. Ls is the Strip lead length, which can vary from zero to the value necessary to get away from the hot zone. LL is the length of the add-on lead. This additional add-on lead option makes it possible to use stock/standard units to satisfy a greater range of wiring requirements. Consult a Watlow sales engineer or authorized distributor for technical details and price. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Stub on Heater in Pocket (Typ.)^ | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Flexible Stranded | Double Twisted NiCr Wire | Solid NiCr Wire | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| CD a) 3 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| MGT Insulated Nickel Lead Wire (450°C Rated) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3 b CD | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| LTotal - LS + LL | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0 a. c o | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ceramic Tubes Ceramic tubes are available in four nominal sizes: X, X, % and J2 inch I.D. and lengths of 0.9 inch (22 mm) and 1.9 inch (48 mm) long. Ceramic tubes have several uses, including thermocouple mounting holes, mounting pin sleeves and lead coverings. The table to the right lists code numbers and exact sizes. B.T.E. Closed-End Thermocouple Tubes Also available is a horizontal thermocouple tube betwwen the elements. Two sizes are available: 0.140 inch (3.6 mm) and 0.265 inch (6.7 mm), both six inches long (152 mm) with closed end. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accessories Ceramic fiber heater orders can also include the following accessory items, as detailed on this and following pages. Please specify the Watlow code number when ordering. Rigidizer Rigidizer is primarily used to recoat soft, cut edges of ceramic fiber heaters and ceramic fiber insulation panels. Various degrees of hardening can be achieved with additional applications. Rigidizer can be ordered by the pint (0.47 L) by specifying code number CFRGD (PT) or gallon (3.78 L), code number CFRGD (GAL). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ceramic Tubes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| High Temperature Coating and Electrical Potting Cement Two different high purity, high temperature cements have multiple uses: mount thermocouple tubes, provide extra surface hardening, bond ceramic fiber gaskets and affix lightweight ceramic fiber insulation blanket to panels, as well as attach edge-spacer blocks and custom vestibules. Potting cement comes in a X pint (116 ml) jar, and may be ordered by specifying code number CFPTGCMT.The high temperature coating cement is available in pints or gallons, and can be ordered by the code numbers CFCTGCMT (PT), CFCTGCMT (GAL). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Powdered Ceramic Fiber Powdered ceramic fiber is used primarily to improve surface finish in critical areas. It can also be used to repair damaged units by filling voids, cracks and broken corners. Use powdered ceramic fiber with rigidizer to make an easily applied paste. Standard container is one pint (0.47 L). Order code number CFPDRF (PT). | Dry Heating Surface Mix Dry heating surface mix, which is used to make the hot face of all standard heaters, including those with the high emissivity coating, can also be used with rigidizer to make a very high temperature paste for touch ups of the hot face area. Order by the pint (0.47 L), code number CFHTGSURMX, or gallon (3.78 L), code number CFHTGMX- GAL. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 151 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||