FPM-Viton® O-Rings are sealing rings for high temperature applications and/or in contact with agressive chemical products. Among the whole synthetic rubbers, FPM-Viton® is the most resistant to halifatic, aromatic and chlorinated hydrocarbons. Its international abbrevation is FPM or FKM (Fluorocarbone monomer).
Is FPM and Viton the same?
The terms FPM, FKM and Viton® very often cause confusion and lead to incorrect interpretations. All of these designations actually stand for one single base material:fluoro rubber. Zrunek uses the designation FPM for all of its fluoro-elastomer materials. …
Is FPM the same as FKM?
The terms Viton® O-rings, FPM and FKM often lead to confusion and incorrect interpretations. FPM is the ISO designation, FKM is the ASTM designation. Viton®, Dai-El and Technoflon are brands for FPM polymers. All of the designations stand for one single base material, which is fluoro rubber.
What was the Challenger O-ring made out of?
The o-rings were not rubber, they were silicone, which has much higher temperature resistance than rubber. There was not a single o-ring, there were two, so if one burned through the second one was supposed to hold.
What is FPM seal?
This sealing ring is Green and made from fluorine rubber (Viton®). This is BLÜCHER’s sealing ring for special applications. The material is particularly heat-resistant and resistant to oil, solvents and strong acids.
What is FPM polymer?
Fluoroelastomers (FKM/FPM) are fluorinated synthetic polymers designed for harsh environments including aggressive chemical and temperature applications.
What is an FKM O ring?
FKM o-rings AKA Viton ® o-rings offer an impressive range of chemical compatibility and high temperature resistance up to 400F, with hundreds of specialty compounds available for specific application performance, making FKM an ideal o-ring material choice in a number of applications.
Who manufactured the O rings on the Challenger?
Morton Thiokol
The tank exploded 74 seconds after liftoff, killing all seven crew members. The seals, called O rings, are made by Parker O-Seal in Culver City, Calif. A company scientist said Friday that Morton Thiokol asked for data on the seals a few days after Challenger exploded.
Can Viton O rings be black?
This Viton O-ring is black in color, round in shape, has a durometer (hardness) of 75A, and is designed for use in a wide variety of sealing applications. Viton has excellent heat, fuel, and chemical resistance.
What is Ffkm seals?
FFKMs (by ASTM 1418 standard) (equivalent to FFPMs by ISO/DIN 1629 standard) are perfluoroelastomeric compounds containing an even higher amount of fluorine than FKM fluoroelastomers. This combination of properties allows FFKM seals to reach well into UHV pressures without the use of metal sealing.
What Viton 75?
FKM 75 material is the closest to a universal elastomer for sealing over other types of elastomers. Fluorocarbon o-rings are commonly referred to as a Viton o ring, or FKM, Fluorel, FPM o-rings. Due to its excellent aging characteristics, fluorocarbon (FKM) rubber is the most significant elastomer recently developed.
What is the color of FFPM-Viton O-rings?
FPM-Viton® O-Rings Name Material Kind Hardness [SHORE] Color Name Material Kind Hardness [SHORE] Color FPM 98 nero FPM A 98 black FPM 98 ED FPM B 98 black FPM 98 TER FPM B 98 black
What is an O-ring made of?
Viton® is a fluoroelastomer obtained from the derivation of synthetic rubber and fluoropolymer elastomer. O-Rings made of this material provide enhanced resilience and increased resistance to aggressive fluids. JIOrings website use cookies in order to optimize the browsing experience and to collect statistics.
What are fluoroelastomers (Viton® FkM and FPM)?
In addition to the standard composition, numerous Fluoroelastomer (Viton® FKM, FPM) compounds are available for special applications featuring different polymer chain combinations and a progressive fluorine content (65-71%). Fluorinated elastomers (Viton® FKM, FPM) are classified according to the monomeric composition:
What is the difference between FPM and FKM elastomers?
Fluorinated elastomers are synthetic tecnopolymers and the difference between FPM and FKM refers only the denomination: FPM according to DIN / ISO and FKM according to ASTM. Viton® is a registered trademark of “THE CHEMOURS COMPANY FC, LLC” in the past this was “DUPONT PERFORMANCE ELASTOMERS LLC”.
