Project Description
- Seal faces are designed to be noncontacting during operation
- Designed for environmental protection
with high efficiency - Due to non-contacting design there is
no friction on the seal faces and there is
no heat generated at the seal or in the
medium - Trouble free operations as complex
components are not required to
dissipate frictional heat - Differential pressure not required with hard / soft material combination
- Conforms to containment seal in
accordance with API 682
- Chemical industry
- Refining technology
- Gases and liquids(single seals only gas)
- Gases and liquids which must not get into the atmosphere (dual seal)
- Gases not harmful to the environment (single seal)
- Fans
- Small steam turbines
- Blowers
- Roots compressors
- Pumps
- EN 12756
- API 682 / ISO 21049
- Seal face: Carbon graphite antimony impregnated (A),
Silicon carbide (Q2),alternatively: Carbon graphite resin
impregnated (B), Silicon carbide (Q1) Seat: Silicon carbide
(Q1, Q2),
Silicon carbide (Q19, Q29) with seal face in Q1 resp. Q2 - Metal parts: CrNiMo steel (G)
- Shaft diameter: d = 28 … 125 mm (1.10″ … 4.92″)
- Pressure: p = 25 bar (363 PSI)
- Temperature: t* = -20 °C…+170 °C (-4 °F…+338 °F)
- Sliding velocity: v = 4 … 25 m/s (13 … 82 ft/s)
* Depending on resistance of O-rings
- Single and Dual seal configuration
- Balanced design
- For stepped shafts
- Rotary unit with multiple springs
- Designed to remain in closed position in
the event of buffer pressure failure - Can accommodate reverse pressure
- Gas-lubricated design
- Gas grooves design is available in Vgrooves and U-grooves (independent
of direction of rotation)