Material of mechanical seal - end face S impregnated with furan resin graphite: acid and alkali temperature resistance, applicable temperature less than 160℃C copper impregnated graphite: high temperature resistance, applicable temperature less than 400℃T antimony impregnated graphite: high temperature resistance, applicable temperature less than 450℃G Reaction sintered silicon carbide: high temperature resistance, corrosion resistance, applicable temperature less than 1000℃ Cobalt-based cemented carbide: high temperature resistance, alkali resistance, applicable temperature less than 400 ℃
Material of mechanical seal - elastic element 8-1Cr18Ni9Ti - moderate corrosion, applicable temperature less than 260℃ 6- 00Cr17Ni14Mo2(316L) - moderate corrosion, applicable temperature less than 260℃ 1 -Hastalloy C - strong corrosion, applicable temperature less than 260℃ ℃5-AM350——No corrosion resistance, applicable temperature less than 350℃9- Inconel718(GH4169)——Medium corrosion, applicable temperature less than 350℃
Mechanical seal material - structural parts 8-1Cr18Ni9Ti : 3-0Cr17Ni12Mo2(316) : 2-2Cr13: small linear expansion coefficient, not corrosion resistant 1- Hastalloy C: corrosion resistant 4- 4J42, 4J43: not corrosion resistant, constant expansion alloy
Common material codes for cloning machine seals Ring piece, ring seat material combination 160°C: W8, U8, O8, S8, W3, U3, O3, S3, S2 200°C: W2, U2, O2, T2 400°C: W4, U4, O4, T4 bellows assembly material 260°C: 6, 1 370°C: 5, 9
Commonly used domestic rubber rings are made of nitrile rubber, oil resistant, -40~120℃ ethylene propylene rubber, radioactive, alkali resistant, -50~150℃ fluorine rubber, oil resistant, temperature resistant, corrosion resistant, -18~206℃ silicone rubber, Cold resistance, heat resistance, -65~230℃ neoprene, radiation resistance, -40~149℃ chlorohydrin rubber, oil resistance, Freon resistance, -40~135℃
The basic element of the inlaid ring of the bellows mechanical seal - the end face material of the inlaid ring: furan resin impregnated graphite, antimony impregnated graphite, silicon carbide, cemented carbide ring seat material: 1Cr18Ni9Ti, 2Cr13, 4J42, 0Cr17Ni12Mo2 (316), Hastalloy C