Click image to enlarge
| Item | Description |
|---|---|
| 1, 9 | Seal ring |
| 2, 5, 7, 10, 13, 15, 16, 17 | O-Ring |
| 3, 11 | Spring |
| 4, 12 | Mating ring |
| 6 | Seal sleeve |
| 8, 18 | Gland plate |
| 14 | Driver |
| 19 | HSH Cap screw |
| 20 | Set ring |
| 21, 24 | Set screw |
| 22 | Setting device |
| 23 | Hexagon bolt |
LBO Liquid buffer/barrier OUT
LBI Liquid buffer/barrier IN
APItex-T
Features
- API 682 Category 1, Type A, Arrangement 2 or 3 seal
- Dual seal in face-to-back arrangement
- Balanced
- Cartridge unit
- Independent of direction of rotation
- Shrink-fitted seal faces
- Solid mating rings
Advantages
- Suitable for pressure reversal
- Insensitive to shaft deflections and process fluctuations
- Cover distortion cannot cause mating ring misalignment
- Good heat dissipation
- No external pump necessary
- Pre-assembled unit, ready to install
- Low space requirements
- Security due to proofed design
- Springs protected from the product
Operating range
Shaft diameter:
d1 = 20 … 110 mm (0.79" … 4.33")
Pressure: p1 = 22 bar (319 PSI)
Temperature: t = -40 °C … +176 °C
(-40 °F … +349 °F)
(>176 °C (349 °F) please inquire)
Sliding velocity: vg = 23 m/s (75 ft/s)
Materials
Seal ring: Blister resistant carbon,
Silicon carbide SSiC (Q12)
Mating ring: Silicon carbide SSiC (Q1)
Secondary seals:
EPDM (E), NBR (P), FKM (V), FFKM (K)
Springs: Hastelloy® C-4 (M)* and C-276 (M5)
Metal parts: CrNiMo steel 316 (G) or equivalent,
optional materials on request.
* EagleBurgmann standard
Standards and approvals
- API 682 / ISO 21049
- API 682 4th ed. Cat. 1 - 2CW-CW
- API 682 4th ed. Cat. 1 - 3CW-FB
Recommended applications
- Highly volatile hydrocarbons
- Toxic and hazardous media
- Media with poor lubrication properties
- Low solids content and low abrasive media
- Process industry
- Oil and gas industry
- Refining technology
- Petrochemical industry
- Chemical industry
- Vertical and horizontal ANSI chemical standard pumps
Recommended piping plans
Process side:
API Plan 01
API Plan 02
API Plan 03
API Plan 11
API Plan 12
API Plan 13
API Plan 14
API Plan 21
API Plan 22
API Plan 23
API Plan 31
API Plan 32
API Plan 41
Between seals:
API Plan 52
API Plan 53A
API Plan 53B
API Plan 53C
API Plan 54
API Plan 55
Atmospheric side*:
API Plan 61
API Plan 62
API Plan 65A
API Plan 65B
* Depending on application, please inquire.
