HRC N Burgmann mechanical seals

HRC N

Features

  • Cartridge
  • Balanced
  • Also Independent of direction of rotation
  • Stationary multiple springs
  • Also Spring protection sleeve
  • Variant for operation with pressureless quench available (HRC2000N)
  • Dual seal with and also without pumping screw (HRC3300NF, HRC3300N) available

Advantages

  • Insensitive to solids containing media. Solids content 40 % (single seal), 60 % (double seal)
  • Springs protected from product and also leakage
  • Variant with short installation length to meet limited space conditions (HRC1100N)
  • Dual seal remains closed in case of barrier pressure failure, also self-closing at pressure reversal (HRC3300NF)
  • Operation under vacuum without seat locking possible
  • No damage of the shaft by dynamically loaded O-Ring
  • Also Insensitive to shaft deflections due to stationary design

Operating range

Shaft diameter:
d10 = 30 … 60 mm (1.181″… 2.362″)
Pressure: p1 = 23 bar (334 PSI)
Temperature:
t = -20 °C … +160 (200*) °C
(-4 °F … +320 (382*) °F)
Sliding velocity: vg = 20 m/s (66 ft)
Axial movement: ±1.0 mm* Due to shrinking

HRC N Materials

Seal face: Silicon carbide (Q1, Q2)
Seat: Carbon graphite antimony impregnated (A),also Silicon carbide (Q1, Q2)

Standards and approvals

  • DIN 24960 C

 

Download catalog for more information:HRC…N