AMS-R744 - Automotive Climate Compressor Sealing The AMS-R744 (Aircon Mechanical Seal - CO 2 refrigerant) is a rotary shaft seal for automotive climate compressors developed to meet the demanding performance conditions correlating to the usage of CO 2 refrigerant. The seal uses high performance materials, especially designed to

Sep 1, 2024 · Automotive refrigerants have undergone significant technological changes, transitioning from R12 to R134a, to R1234yf, and then to R290 and R744. OBT Rubber Seal has developed EPDM and HNBR material for different mixture of …

Nov 27, 2017 · The lubricant creates a seal between the screws and the casing, cools down the compressed gases and allows hydrau­lic controls. Remember that for lubricated screw compressors, the pressure increases continuously along the entire profile of the screw.

R744 data are presented for miscible polyol ester and polyalkylene glycol derivative lubricants and immiscible synthetic hydrocarbon lubricants. Introduction. The purpose of a refrigeration oil is to lubricate the compressor and mechanical seals and to provide a …

Hutchinson has developed an elastomer compound specially designed to meet the sealing needs of components used for heat pump applications in electric vehicles using the R744 refrigerant (valves, compressors, etc.).

Jun 30, 2009 · Due to their specific design, mechanical seals are well suited to dynamic shaft seals on refrigerant compressors for CO2 air-conditioning units (R744). A mechanical seal from Kaco Dichtungstechnik GmbH is now ready for series-production and is currently being tested by almost every compressor manufacturer around the world.

Mechanical seal for R744 (CO2 refrigerant compressor)

Discover our seals for heating technology such as O-rings and molded parts and materials made of FKM, EPDM, HNBR and BIIR for CO2 applications.

with R744 have major differences compared with R134a cooling systems, making exacting demands on the components to be adapted to the new systems. At up to 150 – 160 bar, operating pressures for R744 exceed those of R134a by a multiple. At up to 180 °C, temperatures are in a critical range as well. With soft Sealing compounds for CO

Summit RPE-744 Series is a fully synthetic polyolester lubricant specifically designed for use in refrigeration compressors using carbon dioxide (R744) as the refrigerant. RPE-744-Series is miscible with carbon dioxide and offers superior hydrolytic stability and corrosion resistance.