HNBR is generally considered to be acceptable with concentrations of up to 7% H 2 S at temperatures up to 300°F (149°C). At higher temperatures or concentrations, use FKM or FEPM. FEPM is preferred to FKM if explosive decompression is a concern. HNBR seal material Chapter B2 Page 5 Contact Kalsi Engineering Search this handbook Known media limitations: Avoid benzene, zinc bromide, calcium
HNBR Specific Properties. Hydrogenated Nitrile Butadiene Rubber (HNBR), also known as Highly Saturated Nitrile (HSN), is a special class of nitrile rubber (NBR) that has been hydrogenated to increase saturation of the butadiene segment of the carbon polymer backbone. By hydrogenating the nitrile copolymer, HNBR fills the gap left between NBR, EPDM and FKM elastomers where high temperature
HNBR Rubber is also known as Hydrogenated Nitrile rubber. It has good heat, oil, flame resistance. Cold tolerance is better than NBR. Main appliion is car synchronous belt bottom glue, high performance V band bottom glue, various automobile rubber pipe inner layer and fuel contact sealing parts etc. Hardness: 50~95 Shore A.
HNBR. Hydrogenated Nitrile Butadiene Rubber (HNBR) was developed to bridge the price-performance gap between FKM/FVMQ and NBR. Compared to NBR, HNBR has better oil resistance, temperature properties and strength. Excellent media resistance. Excellent heat and oxidation stability. High mechanical strength. Improved wear resistance.
1/10/2021· 1. Introduction. Hydrogenated nitrile butadiene rubber (HNBR) is an important class of elastomers that is very often utilised in the oil and gas production equipment, particularly in elastomer ring seals and packing elements .These sealing elements are typically subjected to a wide range of well bore fluids under high pressure (up to about 100 MPa), various chemicals and high temperature (up
We offer HNBR O-Ring. Manufactured using premium grade Hydrogenated Nitrile Butadiene Rubber (HNBR), our O-rings offer excellent pressure resistance capacity. Our O-rings are characterized by heat resistance, oil and chemicals. These are widely used where high pressure is the common norm such as in hydraulic cylinders.
About HNBR. HNBR has been developed to meet higher temperatures than standard NBR while retaining resistance to petroleum based oils. Obtained by hydrogenating the nitrile copolymer, HNBR fills the gap left between NBR, EPDM and FKM elastomers where high temperature conditions require high tensile strength while maintaining excellent resistance to motor oils, sour gas, amine/oil mixtures
EPDM/PTFE, HNBR/PTFE, FPM/PTFE, VMQ/PTFE: Size: DN25 - DN150, 1” - 6” Max. line pressure: 10 bar (145 psi) Supply pressure for air actuator: 6 bar (87 psi) Sterilisation temperature: 135°C (284°F) SINGLE SEAT DOUBLE SEAL MIXPROOF VALVE (870 SERIES) Single Seat Double Seal valves are used in automated piping systems where product mixing from pressure hammer or seat failure is a concern
HNBR is a hydrogenated version of NBR (nitrile) rubber, a copolymer of ACN and 1,3-butadiene. It has better performance than NBR, as in the case of HNBR, the NBR is hydrogenated in a alytic hydrogenation process. HNBR is widely known for its physical strength and retention of properties after long-term exposure to heat, oil, and chemicals.
HNBR Rubber O Rings in Metric and British Standard O Ring sizes are available at Polymax. Call 022 65645424 today for more details.
18/6/2020· Hydrogenated nitrile butadiene rubber (HNBR) – also known as highly saturated nitrile (HSN) – is known for its physical strength and retention of its properties after long-term exposure to heat, oil and chemicals. A common use is O-rings for automotive air-conditioning systems. Depending on filler selection and loading, HNBR compounds typically have tensile strengths of 20-31 MPa when
HNBR is made via selective hydrogenation of the NBR butadiene groups. The properties of the HNBR rubber depend on the ACN content which ranges between 18 % and 50 % as well as on the degree of saturation. HNBR shows good mechanical properties. The operating temperature of HNBR ranges between -30 °C/-22 °F and +140 °C/+284 °F (for a short period of time up to +160 °C/+320 °F) in …
HNBR O-Rings (Hydrogenated Nitrile Butadiene Rubber) HNBR o-rings and seals offer resistance to aggressive chemical media at a level comparable with NBR seals, but with the added advantage of enhanced stability with exposure to heat and oxidation. It is also highly durable and demonstrates improve abrasion resistance. HNBR seals are used extensively in appliions where there is …
HNBR Comparable to NBR, it shares the same molecular composition with the addition of hydrogen, which determines its resistance to ozone. Compared to NBR it has greater resistance to high temperatures. It is massively used in the automotive and air conditioning sectors. It can also significantly improve chemical
formulate an HNBR rubber compound to meet your specific appliion and performance requirements, please contact Robinson Rubber Products at email: [email protected] or phone: +1-763-535-6737. Robinson Rubber Products Company, Inc. makes no expressed or implied warranty as to any qualities, attributes, or characteristics of any polymer or material. This information is provided for
HNBR 70 Shore A – Green. The hardness of this HNBR (Hydrogenated acrylonitrile-butadiene rubber) O-ring is 70 Shore A. This HNBR O-ring has an operating temperature of -30 ° C to +150 ° C. With special grades, you can achieve -50 °C. The color of this O-ring is Green. The NBR O-ring is resistant to: Water (max 80 °C) Pressure fluids HFA, HFB, HFC; Oil and fats based on mineral oil
6/12/2016· HNBR: Applying to the industry. HNBR has opened up a wider range of possible appliions than classic NBR materials–like automotive, industrial and other performance-demanding appliions. With the coination of physical and chemical properties, plus high performance at low temperature, this material is a great choice for under-the-hood appliions. It’s also ideal for environmental
HNBR can be formulated to meet appliion temperatures ranging between -35°C and 150ºC. Seals Eastern is proud to have chosen Zeon Chemical Zetpol® brand of HNBR polymer as the backbone of our HNBR o-rings, seals, and packer elements. To learn more Contact Us. Seals Easterns series of formulated HNBR compounds: Ref# Duro Description; 7345: 70: General service o-ring and packer element
HNBR. HNBR rubber is a hydrogenated NBR specially designed for demanding appliions requiring excellent durability in aggressive environments over a wide temperature range from -40 to 165°C. NBR. Nitrile-butadiene rubber (NBR) is a copolymer made from butadiene and acrylonitrile. NBR is essential for technical rubber products that need to be resistant to mineral oils, service fluids, and
Latest study on Hydrogenated Nitrile Butadiene Rubber ( HNBR) Market segmentation focuses on High Nitrile HNBR (40% -ACN. 50%), Middle High Nitrile HNBR (35% -ACN40%) and Low Temperature Grade HNBR (CAN-25%) as main product types. HNBR is a hydrogenated version of NBR (nitrile) rubber. NBR is a copolymer of ACN and 1, 3-butadiene, NBR backbone still contains double bonds. These bonds are …
HNBR is an excellent solution for dairies, the beverage industry and appliions coming into contact with fatty media. ¹ The presence of R and not M as the last letter can be traced to the fact that most types of HNBR still contain a certain proportion of remaining double bonds. This also permits a representation of its molecular relationship to NBR. ² In chemical terms, hydrogenation is
Hydrogenated Nitrile Rubber (HNBR) Description: Hydrogenated Nitrile (HNBR) is a synthetic polymer that is obtained by saturating the double bonds in nitrile’s butadiene segments with hydrogen. HNBR is known for its physical strength and resistance to heat, oil, and …
High performance rubber compounds Polycomp has more than 20 years experience in developing and producing customer specific high performance rubber compounds based on FKM, FFKM, HNBR , (F)VMQ as well as all other polymers. We built excellent knowledge and expertise in a wide range of segments.
HNBR o-rings are not preferable for use with chlorinated hydrocarbons, ketones, ethers, esters, and strong acids. Acrylonitrile Content: Just like NBR, there are different levels of Acrylonitrile (ACN) content in different HNBR polymers. The ACN content can be varied from 17% to 49%. Lower ACN content gives better low-temperature properties but lesser resistance to fuels and polar lubricants
Rubber - HNBR Properties. Hydrogenated acrylonitrile butadiene rubber (HNBR) is a unique elastomer. It can be produced from conventional nitrile rubber by hydrogenation of the unsaturated bonds in the butadiene units of the polymer: The properties of hydrogenated nitrile rubber (HNBR) depend upon the acrylonitrile content and the degree of hydrogenation of the butadiene copolymer. HNBRs have