A launch vehicle uses a turbopump that is driven by a hot gas turbine. Due to high levels of horsepower, RPM, flow rates and pressures in this system, specific design features, materials, and fabrication methods must be used to ensure high performance as well as space flight levels of reliability. For static sealing applications in this area, metal seals are used to prevent leakage of a fluid through a joint that has no relative motion of the mating surfaces.
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Portable Oxygen Concentrator (POC) Air Compressor
Category
Critical Applications
3 min
Description
Piston cup seals are critical due to two functions. Firstly, the seal must function as a bearing. If the seal is removed from the hardware, the piston will hit against the cylinder wall. Secondly, since compressors need to run completely dry, the seal provides leakage and wear control.
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Sealed Carbon Dioxide (CO₂) Laser Systems
Category
Leakage Requirement
4 min
Description
Lasers are used in industrial production with high success. Some of the advancements in processing industry would not be possible without lasers. Carbon dioxide (CO2) lasers are among the oldest gas-based lasers. The long lasting legacy of carbon dioxide (CO2) has ensured that their costs remain extremely attractive compared to competing lasers. These lasers continue to command market share on account of their high, continuous power wave operations. They are known for their superior power conversion efficiency, and values in the range of 30% have been recorded. This makes them suitable for sensitive applications such as medicine, as well as demanding applications such as industrial cutting and welding.
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Launch Vehicle Large Fuel Tank
Category
Special Sizes & Shapes
3 min
Description
Launch vehicles are most often propelled using fluids with liquid oxygen being the most common oxidizer and fuel being liquid hydrogen or kerosene and most recently liquid methane. All these fluids (except kerosene) are commonly stored at cryogenic temperatures.
Sealing is critical when liquid oxygen or hydrogen are involved since they are easily ignitable. Any small amount of leakage can create a hazardous situation, which can lead to a potential explosion of the whole launch system. Leakage requirements are therefore quite stringent.
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Rotary Screw Compressor
Category
Leakage Requirement
3 min
Description
A compressor is a mechanical device that increases the pressure of air by reducing its volume. It takes air from one end, compresses this air to high pressure and then delivers it at the other end for various applications or some mechanical work. Industrial Air Compressors are used in various industries including general industrial, chemicals, food and beverage, oil and gas, power generation and life science.
The different compressor types are rotary, reciprocating and centrifugal. Rotary compressors constitute almost 60% of the overall market.
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