In recent years, with the continuous strengthening of environmental protection policies, the demand for asbestos ban and alternative materials has continued to increase in countries around the world. Asbestos was once widely used in construction, automobiles, papermaking and other industries due to its excellent high temperature resistance and corrosion resistance, but as its harm to human health has deepened, asbestos has gradually been regarded as a "carcinogen". In response to this challenge, many companies have begun to develop and promote Non-Asbestos Beater Sheet, which are environmentally friendly alternatives that do not contain asbestos materials.
Knife gate valves offer advantages such as simple and compact structure, reasonable design, lightweight and material-saving design, reliable sealing, easy and flexible operation, small size, smooth flow path, low flow resistance, light weight, and easy installation and assembly.
Acrylic fiber packing braided from high strength acrylic fiber with PTFE impregnated twice time. It has excellent properties of sealing, lubricating and resistant to chemical. The acrylic packing can be with or without oil. High elastic red silicone rubber core can absorb vibration.
For fluid sealing, different kinds of packings are used. Graphite packings and PTFE Packings are popular sealants generally available in braided style. The biggest difference between both these packings is that graphite is a naturally occurring form of carbon and PTFE is a synthetic material. Yarns go through multiple heat treatments to get the shape and structure of the desired characteristics of packings.
spiral wound gaskets have emerged as critical components in industrial sealing applications, offering unparalleled performance in high-temperature and high-pressure environments. Their unique construction of alternating metal and filler materials has established them as the preferred sealing solution for industries ranging from petrochemicals to power generation and aerospace.
Non-asbestos gaskets are composite materials made from various organic fibers (such as aramid fibers and cellulose fibers), inorganic fibers (such as glass fibers and mineral fibers), synthetic rubbers (such as nitrile rubber and EPDM rubber), and fillers, through a precision manufacturing process. They are designed to mimic or even surpass the physical and chemical properties of asbestos gaskets, while being completely free of asbestos.