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.
Ceramic fiber blankets commonly known as aluminum silicate fiber blankets, are a mainstream lightweight refractory and thermal insulation material. 1. Raw materials: Primarily composed of alumina (Al₂O₃) and silica (SiO₂); high-end grades incorporate zirconia (ZrO₂).
There are two styles of PTFE sheets, PTFE molded sheets, PTFE skived sheet. PTFE molded sheet is manufactured by molding method with PTFE granular resin. PTFE skived sheet is formed by pressing the PTFE suspension blank into shape by skiving.PTFE is the most chemical resistance of all known plastics. It does not age. It has the lowest coefficient of friction of all known solid materials and a wide range of practicable temperature from -180degree +260 degree.
There are clear industry standards regarding the selection of cast iron, cast steel, and stainless steel valves based on temperature and media.
PTFE-coated fiberglass cloth—fully known as polytetrafluoroethylene-coated fiberglass fabric—is a high-performance composite material that combines the strength of fiberglass with the low-friction, non-stick, and corrosion-resistant properties of PTFE. Its core structure consists of a high-strength fiberglass fabric substrate that is thoroughly impregnated with PTFE emulsion (commonly known as the "King of Plastics") and subsequently processed through drying and high-temperature sintering.
Ring joint gaskets are metallic sealing elements designed for high-integrity flanged connections that must withstand extreme pressures, temperatures, and aggressive media. They fit into precisely machined grooves on RTJ flange faces, creating a tight metal-to-metal compression seal. The gasket deforms slightly upon bolt tightening, filling any irregularities and achieving a leak-tight joint. Common profiles include oval and octagonal cross-sections (R-type), as well as pressure-energized RX and BX designs used in API wellhead equipment. Material selection is critical: soft iron is standard for general service, while stainless steel, Inconel, or duplex alloys resist corrosion and maintain strength in sour gas or high-temperature environments. Understanding ring types and material compatibilities is the first step toward proper specification.