LL9DTUE
LL9DTUE
| Item | Description |
| 1, 18 | Seal ring |
| 2, 7, 10, 12, 13, 15, 19, 23 | O-Ring |
| 3, 25 | Collar |
| 4, 21 | Spring |
| 5, 20 | Thrust ring |
| 6, 24 | Drive screw |
| 8, 26, 32, 33 | Set screw |
| 9, 22 | Mating ring |
| 11 | Seal sleeve |
| 14, 29 | Gland plate |
| 16 | Flow distributor |
| 17, 28, 30 | Retaining ring |
| 27 | Throat bushing |
| 31 | Drive collar |
| 34 | Setting device |
| 35 | HSH Cap screw |
F Flush
CSV Containment seal vent
GBI Gas buffer IN
CSD Containment seal drain
LL9DTUE
Features
- API 682 Category 2 and 3, Type A, Arrangement 2 seal
- Dual seal in face-to-back arrangement
- Dry contact outer seal (containment seal)
- Balanced
- Cartridge unit
- Solid seal faces
Advantages
- Outer seal which can be used for flashing as well as non-flashing applications prevents hazardous emissions in case of inboard seal failure
- Low heat generation and power consumption due to narrow seal face width of inner seal
- Longer seal life
- Pressure-balanced design prevents mating ring being forced out under reverse pressure
- No damage to shaft sleeve as dynamic
O-Ring is not in direct contact with the sleeve
Materials
Seal ring (primary seal): Blister resistant carbon,
Silicon carbide SSiC (Q1), RBSiC (Q2)
Seal ring (secondary seal): Special carbon
Mating rings:
Silicon carbide SSiC (Q1), RBSiC (Q2)
Secondary seals:
FKM (V), FFKM (K), EPDM (E), NBR (P)
Springs: Hastelloy® C-276 (M5)
Metal parts: CrNiMo steel 316 (G)
Silicon carbide SSiC (Q1), RBSiC (Q2)
Seal ring (secondary seal): Special carbon
Mating rings:
Silicon carbide SSiC (Q1), RBSiC (Q2)
Secondary seals:
FKM (V), FFKM (K), EPDM (E), NBR (P)
Springs: Hastelloy® C-276 (M5)
Metal parts: CrNiMo steel 316 (G)
Standards and approvals
- API 682 / ISO 21049
- API 682 4th ed. Cat. 2/3 - 2CW-CS
Recommended applications
- Refining technology
- Oil and gas industry
- Petrochemical industry
- Chemical industry
- Power plant technology
- CCUS
- Alternative fuels production
- Light volatile hydrocarbons
- LPG plants
- API 610 / ISO 13709 pumps
- Process pumps
Recommended piping plans
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