Characteristics:
  Single spring seal
  Conical spring
  Single direction
  Unbalanced
  According to DIN24690
Operating limits
  D1=10-80mm
  Pressure p1=10bar
  Speed v=15m/sec
  Temperature t=-20+120oc
Material:
  Rotary face :stainless steel,carbon,SiC,TC
  stationary face :Carbon .ceramic .SiC.TC
  Rubber:NBR.EPDM.VITON
  Spring:SS316 SS304
  Metal partS: SS316 SS304