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 %

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

Service
Provide special design
According to the requirements and conditions for the custom processing

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