NRA

NRA

NRA SEALS By SIZE INCH D D3 D7 L1 L2 L3
1 1/8" 28.575 47.6 59.4 25.6 15.9 25.3
1 5/8" 41.275 62.0 71.8 29.5 15.9 25.3
2 1/8" 53.975 79.4 84.6 29.3 15.9 25.3
2 5/8" 66.675 88.9 111.0 41.3 15.9 25.3

DESCRIPTION:

NRA MECHANICAL SEAL

OPERATIONAL CONDITIONS:

  • TEMPERATURE:-40℃ TO 120℃
  • PRESSURE:≤0.8MPA
  • SPEED:≤18M/S

MATERIALS:

  • STATIONARY RING: CERAMIC, SILICON CARBIDE REACTION BONDED, SILICON CARBIDE SINTERED, NI-BINDER TUNGSTEN CARBIDE, CO-BINDER TUNGSTEN CARBIDE
  • ROTARY RING:RESIN IMPREGNATED CARBON, ANTIMONY CARBON, SILICON CARBIDE SINTERED, SILICON CARBIDE REACTION BONDED, TUNGSTEN CARBIDE, NI-BINDER TUNGSTEN CARBIDE
  • SECONDARY SEAL:NITRILE (NBR), ETHYLENE PROPYLENE (EPDM), FLUOROCARBON RUBBER (VITON)

APPLICATIONS:

  • GENERAL CHEMICALS, POLYPROPYLENE PUMPS,
  • VACUUM PUMPS ,SEWAGE WATER,LIGHT SLURRIES
  • OILS AND OTHER MODERATELY CORROSIVE FLUIDS