Features
  Balanced seal
  spring standing seal
  spring built-in protected
  Comply with EN 12756
  Equivalent to HRN
Recommended Applications
Chemical industry
  Industry pumps 
  Process Pumps
  Oil refining and petrochemical    industry 
  Other Rotating Equipment
Operating range
Shaft diameter: d1=18...100mm(0.750'' ...4.000'')
Pressure: p=0...2.5Mpa(362.5psi)
Temperature: t = -40 °C .. 220 °C(-40°F to 428°F)
Sliding velocity: Vg≤20m/s(65.6ft/s)
Notes: The range of preesure,temperature and sliding velocity is depend on seals combination materials
Product Structure

Combination Materials
1. Rotary Face 
     Reaction Bonded Sic RBSIC  O
     Sintered Silicon Carbide SSlC  O1
     Tungsten Carbide.Ni-binder  W
 2. Stationary Seat 
     Carbon graphite, resin impreg  AK
     Carbon graphite,antimony impreg  AD
     Reaction Bonded Sic RBSIC  O
     Sintered Silicon Carbide SSlC  O1
     Tungsten Carbide.Ni-binder  W
 3. Auxiliary Seal 
     Elastomers 0-ring
     Fluorocarbon Rubber FKM  V
     Etylene Propylene Rubber EPDM  E
     Tetraflouroe Thylene Propylene Rubber EPDM  X
     Perfluorocarbon RubberFFKM  K
     Pure PTFE(PTFE) T
 4. Spring 
     Hastelloy C-4  M
     GrNiMo-Steel (AlS1316)  G
 5. Metal Parts
     GrNi-Steel (AlS1304)  F
     GrNiMo-Steel (AlS1316







