RJWMFL85N
Mechanical seals for pumps
Features
- For unstepped shafts
- Single seal
- Balanced
- Independent of direction of rotation
- Metal bellows rotating
Recommended applications
- Process industry
- Oil and gas industry
- Refining technology
- Petrochemical industry
- Chemical industry
- Hot media
- Cold media
- Highly viscous media
- Pumps
- Special rotating equipment
Standards and approvals
- EN 12756
Materials
- Seal face: Carbon graphite antimony impregnated (A), Silicon carbide (Q12)
- Seat: Silicon carbide (Q1)
- Bellows: Inconel® 718 hardened (M6), Hastelloy® C-276 (M5)
- Metal parts: CrNiMo steel (G), Duplex (G1), Hastelloy® C-4 (M)
Operating range
- Shaft diameter: d1 = 16 … 100 mm (0.63" … 4“)
- Externally pressurized: p1 = … 25 bar (363 PSI)
- Internally pressurized: p1 <120 °C (248 °F) 10 bar (145 PSI) p1 <220 °C (428 °F) 5 bar (72 PSI)
- Temperature: t = -40 °C … +220 °C (-40 °F … 428) °F, Stationary seat lock necessary.
- Sliding velocity: vg = 20 m/s (66 ft/s)
Advantages
- For extreme temperature ranges
- No dynamically loaded O-Ring
- Self cleaning effect
- Short installation length possible
- Pumping screw for highly viscous media available (dependent on direction of rotation)