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

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

LP-S - Product variants

LP-S-UPF
Single seals for API Plan 11 with throttle acc. Sulzer design request, adapted for Sulzer A pump series.

LP-G-UP
Single seal for operation with unpressurised grease quench. Identically equal design to LP-S-UP however with quench housing at atmospheric side.

LP-S-S32-E10
Single seal adapted for Sulzer APP/APT Pumps.

LP-S-S32-F10
Single seal adapted for Sulzer APP/APT Pumps, for API Plan 11 with throttle acc. Sulzer design request. 

LP-Q-S32-E20
Single seal for operation with unpressurised quench. Identical design with LP-S however with outboard lip seal at atmospheric side (installation length longer), adapted for Sulzer APP/APT Pumps.

LP-G-S32-E30
Single seal for operation with unpressurised grease quench. Identically equal design to LP-S-S32 however with quench housing at atmospheric side. 

LP-S-SL 
Single seal, adapted for Sulzer SL Mixers.

Further designs
available to fit in numerous other equipment from notable manufacturers for the Pulp- and Paper Industry e.g., Metso conical refiners, Andritz pressure screens and stock pumps.