Item Description
1.1 Seal ring with bellows unit
1.2, 11 Gasket
1.3 Baffle sleeve
1.4, 7, 24 Spring washer
1.5, 8, 17,27 HSH Cap screw
2 Mating ring
3, 6, 9 Graphite ring
4 Retainer
5 Pin
10 Seal sleeve
12 Gland plate
13 Flow distributor
14 Retaining ring
15 Throttle bushing
16 Adapter
18 Thrust ring
19 Drive ring
20 Split ring
21 Drive collar
22 Clamp sleeve
23 Set screw
25 Hexagon bolt
26 Setting device


F Flush
Q Quench
D Drain

LY9TC

Features

  • API 682 Category 2 and 3, Type C, Arrangement 1 seal
  • Single seal
  • Balanced
  • Cartridge unit
  • Stationary metal bellows
  • Shrink fitted seal ring and solid mating ring

Advantages

  • Suitable for higher speeds
  • Good followability due to no influence from run-out, squareness or vibration of the shaft
  • Compact design
  • Low heat generation and power consumption due to narrow seal face width
  • Longer seal life
  • Also available in double ply design
  • Suited for applications with extreme high and low temperatures
  • Absence of dynamic O-Ring eleminates/reduces seal face hang-up
  • Bellows design minimizes variation in face load due to shaft expansion or face wear
  • Resistant to abrasive particles in the medium, no shaft or sleeve fretting

Operating range

Shaft diameter: d1 = 20 ... 110 mm (0.79" ... 4.33")
Pressure single ply bellows: p = vacuum ... 20 bar (... 290 PSI),
Pressure double ply bellows: p = vacuum ... 35 bar (... 508 PSI)
Temperature: t = -130 ºC ... +400 ºC (-202 ºF ... +752 ºF)
Sliding velocity: vg ... 50 m/s (... 164 ft/s)

Materials

Seal ring: Blister resistant carbon,
Silicon carbide SSiC (Q1), RBSiC (Q2)
Mating ring:
Silicon carbide SSiC (Q1), RBSiC (Q2)
Bellows: Inconel® 718 (M6)
Secondary seals: Graphite (G)
Metal parts: CrNiMo steel 316 (G),
Carpenter® 42 (T4)

Standards and approvals

  • API 682 / ISO 21049
  • API 682 4th ed. Cat. 2/3 - 1CW-FL