LP-S Burgmann mechanical seals

LP-S

Features

Integrated seal for Sulzer A pumps
Single + Plan 11 flush
Semi cartridge unit
Balanced
Independent of direction of rotation
Static springs
No dynamic O-Ring on shaft
Rugged design
Shrink-fitted seal faces
Seal faces have a large clearance to the shaft
Wear part cost minimized

Advantages

Individually integrated to equipment for best sealing result
Straightforward and easy installation
Static springs reduces influence of misalignment
No damage of the shaft by dynamically loaded O-Ring
Extended service life due to rugged design
No brittle parts in contact with torque transmission pins
Seal faces protected by strong steel parts and a large radial clearance
The double, quench and single seals have the same wear parts on product side
Reduces stock holding costs

Operating range

Temperature:
t = -20 °C … +140 °C (-4 °F … +284 °F)
Pressure: p1 … 25 bar (363 PSI)
Sliding velocity: vg … 20 m/s (66 ft/s)
Stock content: … 4 %

LP-S Materials

Seal face: Silicon carbide (Q12), Carbon (A)
Secondary seals:
FKM (V), EPDM (E), FFKM (K)
Metal parts: CrNiMo steel (G),
Grade 5A (4T), SMO 654 (4U)

Recommended applications

Pulp and paper industry
Chemical industry

All clean none abrasive media

Sulzer Ahlstar APP and APT centrifugal pumps

Download catalog for more information:LP-S

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