Repair Care International DRY SEAL® Replacement Putty Elastic Glazing Sealant White

Product Information

As the population increases more and more buildings are going to be built to accommodate a already over populated world and if the problems of today’s technologies are not changed when we have solutions to change them, then our planet will just spiral out of control! To prevent a dangerous condition, process gas cannot leak into the bearing cavity, which could cause an explosion or expose operators or the environment to hazardous or toxic gas. To eliminate this danger, a separation seal (Figure 2) is used on the atmospheric side of the dry gas seal. Since a number of separation seals are available, selecting the correct seal for the application is important. Through all this, many dry gas seal designs were identified as unsuited for the applications in which they were installed—including the use of improper materials of selection that resulted in seal failures, incorrectly installed seals that limited seal life and poor dry-gas-seal panel designs that caused unnecessary compressor shutdowns. In many instances, when designing dry gas seal panels, little consideration has been given to piping configurations, auxiliary systems and utility costs even though all these affect the reliability of dry gas seals. Dry seals offer an alternative for dusty or extremely viscous applications that guarantees complete sealing, minimum maintenance, protection of the other system components such as the wear of the shaft and less energy consumption due to motor friction.

The final factor that influences the reliability of a dry gas seal is the auxiliary system. Typically, auxiliary systems (Figure 5) are chosen when the seal and seal supply are selected, as these choices have major influences on what is included in the auxiliary system. When identifying what to include in an auxiliary system, the reliability of the seal gas supply flow must be assessed to determine if it will provide a flow during all conditions, such as start-up and recycle. If an alternate gas is used, can pressure build up in the compressor be managed? Since clearances between seal faces are usually less than 4–10 microns, the seal gas passing between faces should be clean and dry. While the seal filtration requirement is 1–3 microns, 1-micron filtration systems are typical for dry gas seals. We present the Dry Seals or a sealing system for solids that have a technology to permit a complete seal with no lubrication need. If painting DRY SEAL do so within a month of application. If painting at a later date, lightly sand to create a key

Conclusion

When using the product as a sealant, make sure that application results in a good bond between Dry Seal MP and the substrate. Dependent on the substrate, type and degree of soiling, we recommend the use of one of our Masonry Fungicide Productsor Green Gone Path & Patio Cleaner. When cleaning, make sure that the masonry is damaged as little as possible. The operation range of seal system instruments: The instrumentation and control systems for sealing systems vary per application. In some of these applications, instruments or valves might be improperly specified. Sometimes the instrument range is not sufficient, and too often seal system flowmeters are not sized properly. At Dry Seals we have harnessed this technology by creating a series of cured silicone extrusions that we call Dry Seals.

Double opposed seal - Used when the processed gas is abrasive (like hydrogen) and lower pressure designs. The next article, in the March 2012 issue, will focus on selecting the proper seal features—face materials, groove geometries, secondary sealing elements and gasket extrusion/explosive decompression—to provide a reliable dry gas seal system. The quality of the seal supply gas must also be assessed to ensure that no liquids are formed during changes in gas pressure and temperature. The seal gas will drop in pressure from the supply pressure all the way to the atmospheric side as it leaks through the dry gas seal. Factors that can influence seal gas temperature are process gas temperature or environmental conditions, which can drop the temperature of pipes or the compressor to the point that liquid will form in the seal gas supply. All these conditions must be identified to ensure that no liquids form that will affect the operation of the dry gas seal during dynamic as well as static conditions. Dryseal can easily accommodate most complex roof detailing and can be used on flat and low pitched roofs, on garages, extensions, or to replicate lead sheet on heritage buildings.Figure 2. An example of a 3D model of a modern dry gas seal. The dry gas seal details are shown in this 3D model. Dry Seal Multi-Purpose Glazing Sealant is a durable alternative to linseed oil putty for use on wooden and metal windows for maintenance, renovation and restoration.

The seal gas filter system: Standard filters are typically small in capacity and large in the mesh size. For dry gas seals, filters should be 2-5 times larger (in terms of capacity), and 3-4 times smaller in mesh size than typical standard models. As noted earlier, it is not uncommon for dry gas seal systems to employ filtration of 1 micron or less. Their specifications and functionalities make them ideal for food, chemical, pulp and paper or recycling sectors. Adjoining Surfaces: Due to the thixotropic nature of this product, where it is applied by brush or roller, accidental contamination of non-target surfaces can usually be avoided by taking reasonable care. Other systems for working with dusty fluids are air barriers, but they must be constantly supplied with compressed air to keep the product “fluid” away from the sealing area and this incurs high operating costs. On the contrary, Dry seals use a compressed air line to function correctly, but they do not need to consume its flow, which means there is no airflow through the seal and the seal does not become worn.Before a water repellent impregnation is carried out, crusts of dirt and pollutants as well as efflorescence, algae and moss must be removed by a suitable cleaning procedure. Cleaning opens the pores and capillaries, allowing them to absorb the impregnation agent. A second application can be carried out at any time but is usually not necessary. Resistance to rain is normally achieved within one hour of application.