Mechanical Seal for KSB Pump | KSB

The KSB Mechanical Seal for KSB Pumps is an OEM seal specifically designed for KSB brand pumps (world-class German manufacturer), ensuring a secure, leak-free, and long-lasting seal in demanding industrial applications. Available in 3 shaft diameters: 22, 28, and 38 mm, with 2 face material combinations (Silicon-Silicon and Carbon-Silicon) and EPDM elastomer, this seal covers the most common KSB pump configurations in industrial service. The combination of high-engineering materials guarantees excellent resistance to wear, corrosion, and a wide range of fluids, maintaining optimal pump performance and minimizing downtime for maintenance.

Available Material Combinations

• Silicon - Silicon (SiC/SiC): Maximum hardness and resistance to abrasive wear. Ideal for fluids with suspended solids, hot water, aggressive chemical fluids, and high-speed applications. Longer lifespan in severe conditions
• Carbon - Silicon (C/SiC): Excellent self-lubrication and resistance to momentary dry running. Ideal for clean water, standard process fluids, and applications requiring lower friction torque. Most common combination in general process KSB pumps
• EPDM Elastomer: Resistant to hot water, steam, alkaline fluids, dilute acids, and polar solvents. Temperature range: -40 °C to +150 °C. Not compatible with mineral oils or hydrocarbons

Applications

• Direct replacement for original mechanical seals in KSB pumps: Etanorm, Etabloc, Megachem, Movitec, Multitec, and other series
• Potable water and water treatment systems: circulation, pressure, and distribution pumps
• Chemical and petrochemical industry: process pumps with corrosive or aggressive fluids
• HVAC systems: hot and cold water circulation pumps
• Food and pharmaceutical industry: process pumps with clean fluids (verify specific compatibility)
• Mining and construction industry: dewatering pumps and fluid handling with solids (SiC/SiC recommended)
• Preventive and corrective maintenance of KSB pumps in industrial plants, municipalities, and infrastructure projects

Technical Specifications

• Type: Replacement mechanical seal for KSB pump
• Available shaft diameters: 22 mm / 28 mm / 38 mm
• Available face material: Silicon-Silicon (SiC/SiC) / Carbon-Silicon (C/SiC)
• Elastomer material: EPDM
• Temperature range (EPDM): -40 °C to +150 °C
• Application: KSB industrial process centrifugal pumps
• Sales unit: Unit
• Country of origin: Germany
• Brand: KSB

Equivalent to

• EagleBurgmann MG1/MG12 (compatible design)
• John Crane Type 1/1B or 2/2100
• Flowserve SLC-1/SLC-12 Series
• AESSEAL PPES/B1/B12 Series
• Vulcan Seals 1/12 Series
• Roten MG1/MG12 Series
• AES (Chesterton) 442 Series

Material Selection Guide

For clean fluids and standard water, select Carbon-Silicon. For fluids with abrasive particles, aggressive chemicals, or high-speed applications, select Silicon-Silicon. EPDM elastomer is compatible with water, steam, dilute acids, and alkaline fluids, but is not compatible with mineral oils or hydrocarbons. If your application involves oils or fuels, please consult our technical team to select the appropriate elastomer (NBR or FKM/Viton).

Other Common Names

This component is also known as: KSB mechanical seal, mechanical seal KSB pump, KSB pump seal 22mm 28mm 38mm, KSB seal replacement Honduras, silicon carbon EPDM mechanical seal pump, KSB pump seal replacement, KSB centrifugal pump mechanical seal, KSB industrial mechanical packing.