Compounds for Piston and Guide Rings

Compound-No.	Application fields
HS 21037 Special compound	Very high abrasion resistance with non-lubricated and lubricated operation Universal use For high sliding speeds, pressures and temperatures Dimensionally stable compound BAM-approved
HS 22111 Special compound	High pressure stability Good wear resistance in oil-free conditions Suitable for high operating temperatures For dry gases in piston compressors
HS 21027 Carbon/ graphite	For dry gases in piston compressors High pressure resistance and hardness Good sliding and wear properties Good thermal conductivity Largely resistant to chemicals
HS 17027 Carbon/ graphite	For dry gases in piston compressors Very high pressure resistance and hardness Good sliding and wear properties Good thermal conductivity Largely resistant to chemicals Electric conductivity Low volume resistance and surface resistance BAM-approved
HS 17020 Graphite	Low-cost PTFE standard compound High pressure resistance and hardness Good sliding and wear properties Good thermal conductivity Largely resistant to chemicals Electric conductivity Low volume resistance and surface resistance
HS 11018 Glass fibers/ graphite	Standard for process gas compressors Pressure differences up to 200 bar Very good chemical resistance BGVV-approved
HS 10300 Special compound	High abrasion resistance with lubricated and non-lubricated conditions Universal uses For medium sliding speeds, pressures and temperatures