PRODUCTS
LNF992
API Standard 682 seal
Feature
- API 682 Category 2 and 3, Type A, Arrangement 3 seal
- Dual seal in face-to-back arrangement
- Gas-lubricated
- Balanced
- Cartridge unit
- Stationary multiple springs
- Independent of direction of rotation
- Solid seal faces
Product specification example
Standards and approvals
API 682 / ISO 21049
Materials
Seal ring: Silicon carbide SSiC (Q1), High density carbon graphite
Mating ring: Silicon carbide SSiC (Q1)
Secondary seals: FKM (V)
Springs: Hastelloy® C-276 (M5)
Metal parts: CrNiMo steel 316 (G)
Operating range
Pressure: p = vacuum … 16 bar (232 PSI)
Temperature: t = -40 °C … 160 °C (-40 °F … 320 °F)
Sliding velocity: vg = 23 m/s (75 tf/s)
Viscosity: … 300 mPa·s
Solids content: … 20 wt.%
Recommended applications
Chemical industry
Refining technology
Hazardous media
Monomeres
Recommended piping plans
Process side: 02, 32
Between seals: 74
Applicable ranges, performance data and figures can serve only as a guide for selection and therefore in actual use there will be some cases where general specifications cannot be applied due to unknown factors or constraints.
Please check the applicability before use.
The contents are subject to change without notice for improvement.
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