Mechanical Seals

MECHANICAL SEALS

Reliable Sealing Solutions for Industrial Applications

🔹Overview

Mechanical seals are essential components in pumps, compressors, and rotating equipment, designed to prevent leakage of fluids and gases while maintaining operational efficiency. These seals play a crucial role in industries such as chemical processing, pharmaceuticals, food & beverage, oil & gas, and water treatment.

🔹 Why Choose Mechanical Seals?

✔ Leak-Proof Performance: Ensures zero or minimal leakage, reducing maintenance costs.
✔ Enhanced Durability: Made from high-quality materials like carbon, ceramic, tungsten carbide, and stainless steel.
✔ Increased Equipment Lifespan: Reduces wear and tear on rotating components.
✔ Energy Efficiency: Optimized designs minimize friction and power consumption.
✔ Versatile Applications: Suitable for pumps, agitators, mixers, and rotating equipment.

Types of Mechanical Seals

🔹 Multi Spring Seals

⚙️ Multi Spring Balanced Seal – Ideal for high-pressure applications, offering better stability and reduced face wear.
⚙️ Multi Spring Unbalanced Seal – Suitable for low-to-moderate pressure applications, providing cost-effective sealing solutions.

🔹 Spring-Based Seals

⚙️ Capsulated Spring Seal – Protects the spring mechanism from contamination and external elements.
⚙️ Wave Spring Seal – Compact design with a wavy spring for space-saving applications.
⚙️ Balanced Single Coil Spring Seal – Provides uniform pressure distribution and enhanced sealing performance.
⚙️ Conical Spring Balanced Seal – Designed for applications requiring precise balance and extended seal life.
⚙️ Conical Spring Unbalanced Seal – Ideal for general-purpose sealing in moderate pressure environments.

🔹 Cartridge Seals (Slurry & High-Pressure Applications)

⚙️ Cartridge Seal aka Slurry Seal – Used in abrasive and slurry applications, ensuring maximum durability.
⚙️ Cartridge Seal – High Pressure Seal – Engineered to withstand extreme pressures, making it perfect for heavy-duty industrial use.

🔹 Special Application Seals

⚙️ Agitator – Mixer – Vessel Seal – Specifically designed for mixing equipment, agitators, and reactors to prevent leakage in dynamic conditions.
⚙️ Rubber Bellow Seals – Flexible and self-adjusting seals, ideal for misalignment compensation.
⚙️ Metal Bellow Seal – Suitable for extreme temperature and pressure applications with corrosion-resistant properties.
⚙️ PTFE Bellow Seal – Best for handling aggressive chemicals and highly corrosive environments.

🔹 Single Seals

⚙️ Single Seal – Standard mechanical seal for a variety of industrial applications.
⚙️ Single Seal – Internal Clutch – Enhanced internal grip mechanism for better torque transmission.
⚙️ Single Seal – Outer Clutch – Provides an external locking mechanism for secure installation.

🔹 Pump-Specific Seals

⚙️ Grundfos Pump Seal – Designed specifically for Grundfos pumps, ensuring compatibility and high efficiency.

How Mechanical Seal Works ?

Our Mechanical Seal Products

Mechanical Seals

Inquire about individual solutions

We develop and produce customer-specific special and individual solutions for every application.

Contact an expert Show case studies

MULTI SPRING BALANCED SEALS - AFS-102

Applications

  • General Chemicals
  • Petrochemicals
  • Refineries
  • Light hydrocarbons

Performance Range

  • Shaft Diameter: 18…100mm
  • Pressure : 20 bar (max)
  • Temperature: -20…400°C
  • Velocity : 20 m/sec

Materials

Seal Faces:Carbon, SiC, Tung. Carbide
Metal Parts: SS316, Hastelloy-C, Alloy 20
O-Ring : Viton, Nitrile, PTFT

CAPSULATED SPRING SEALS - AFS-104

Applications

  • General Chemicals
  • Food Industries
  • Media Containing Solids

Performance Range

  • Shaft Diameter: 18…100mm
  • Pressure: 25 bar (max)
  • Temperature: -20…140°C
  • Velocity: 15 m/sec

Materials

Seal Faces: Carbon, Ceramic, SiC, Tung. Carbide
Metal Parts: SS304, SS316, Special Alloy
O-Ring: Viton, Nitrile, PTFT

MULTI SPRING UNBALANCED SEALS - AFS-101

Applications

  • General Chemicals
  • Petrochemicals
  • Refineries
  • Light hydrocarbons

Performance Range

  • Shaft Diameter: 18…100mm
  • Pressure : 10 bar (max)
  • Temperature: -20…240 °C
  • Velocity : 20 m/sec

Materials

Seal Faces:Carbon, SiC, Tung. Carbide
Metal Parts: SS316, Hastelloy-C, Alloy 20
O-Ring : Viton, Nitrile, PTFT

WAVE SPRING SEAL - AFS-105

Applications

  • General Chemicals
  • Food Industries
  • Media Containing Solids

Performance Range

  • Shaft Diameter: 18…100mm
  • Pressure: 25 bar (max)
  • Temperature: -20…140°C
  • Velocity: 15 m/sec

Materials

Seal Faces: Carbon, Ceramic, SiC, Tung. Carbide
Metal Parts: SS304, SS316, Special Alloy
O-Ring: Silicon, Viton, Nitrile, PTFT

AGITATOR - MIXER - VESSEL SEAL - AFS-108

Applications

  • General Chemicals and its vapours
  • Petrochemicals and its vapours
  • Light Hydrocarbons and its vapours

Performance Range

  • Shaft Diameter: 25…150mm
  • Pressure: Vacuum to 40 bar (max)
  • Temperature: -20…220°C
  • Velocity: 4 m/sec

Materials

Seal Faces: Carbon, SiC, Tung. Carbide
Metal Parts: SS316, Hastelloy-C, Alloy 20
O-Ring: Silicon, Viton, Nitrile, PTFT

CONICAL SPRING BALANCED SEALS - AFS-202

Applications

  • Water pumps
  • Submersible pump
  • Sewage pump

Performance Range

  • Shaft Diameter: 10…100mm
  • Pressure: 20 bar (max)
  • Temperature: -20…180°C
  • Velocity: 15 m/sec

Materials

Seal Faces: Carbon, Ceramic, SiC, Tung. Carbide
Metal Parts: SS304, SS316
O-Ring: Silicon, Viton, Nitrile, PTFT

RUBBER BELLOW SEALS - AFS-302

Applications

  • Water pumps
  • Submersible pump
  • Sewage pump

Performance Range

  • Shaft Diameter: 10…100mm
  • Pressure: 10 bar (max)
  • Temperature: -20…180°C
  • Velocity: 10 m/sec

Materials

Seal Faces: Carbon, Ceramic, SiC, Tung. Carbide
Metal Parts: SS304, SS316
Bellow: Silicon, Viton, Nitrile

UNBALANCED SINGLE ACTING HELICAL COIL SPRING SEALS - AFS-401

Applications

  • Water pumps
  • Mixers and Agitators
  • Sewage pump
  • Pulp and papers

Performance Range

  • Shaft Diameter : 10 … 100mm
  • Pressure : 18 bar ( max )
  • Temperature : -20 … 140 ° C
  • Velocity : 15 m / sec

Materials

  • Seal Faces : Carbon , Ceramic , SiC , Tung . Carbide
  • Metal Parts : SS304 , SS316
  • O – Ring : Silicon , Viton , Nitrile , PTFT

SINGLE DRY REACTOR SEAL – AFS - 409

Performance Range

  • Pressure: Up to 15 kg/cm²
  • Temperature: -20…160°C
  • Speed: 500 RPM

Materials

Hardware: SS 304, SS 316
Seal Ring: Carbon, TC, SiC
Mating Ring: TC, SiC, Ceramic, Special Cast
Secondary Seal: EPDM, Nitrile, Neoprene, Silicon, FKM

SINGLE SPRING SEALS - INTERNAL CLUTCH - AFS-403

Applications

  • Water pumps
  • Mixers and Agitators
  • Sewage pump
  • Pulp and papers

Performance Range

  • Shaft Diameter : 10 … 100mm
  • Pressure : 18 bar ( max )
  • Temperature : -20 … 140 ° C
  • Velocity : 15 m / sec

Materials

  • Seal Faces : Carbon , Ceramic , SiC , Tung . Carbide
  • Metal Parts : SS304 , SS316
  • O – Ring : Silicon , Viton , Nitrile , PTFT

MULTI SPRING UNBALANCED SEALS FOR FURNACE - AFS-112

Applications

  • General Chemicals
  • Petrochemicals
  • Refineries
  • Light hydrocarbons

Performance Range

  • Shaft Diameter : 18 … 100mm
  • Pressure : 10 bar ( max )
  • Temperature : -20 … 240 ° C
  • Velocity : 20 m / sec

Materials

  • Seal Faces : Carbon , SiC , Tung . Carbide
  • Metal Parts : SS316 , Hastelloy – C , Alloy 20
  • O – Ring : Viton , Nitrile , PTFT

CARTRIDGE SEAL AKA SLURRY SEALS - AFS-107

Applications

  • Pulp & Paper
  • Slurry Pumps
  • Sludge Pumps

Performance Range

  • Shaft Diameter: 20…100mm
  • Pressure: 18 bar (max)
  • Temperature: -20…180°C
  • Velocity: 20 m/sec

Materials

Seal Faces: Carbon, SiC, Tung. Carbide
Metal Parts: SS316, Hastelloy-C, Alloy 20
Packing: Elastomers

CARTRIDGE SEAL - HIGH PRESSURE SEALS - AFS-109

Applications

  • Main Oil Pipeline
  • Water Injection Pumps
  • Boiler Feed Water Pumps

Performance Range

  • Shaft Diameter: 25…150mm
  • Pressure: 80 bar (max)
  • Temperature: -20…220°C
  • Velocity: 20 m/sec

Materials

Seal Faces: Carbon, SiC, Tung. Carbide
Metal Parts: SS316, Hastelloy-C, Alloy 20
O-Ring: Silicon, Viton, Nitrile, PTFT

RUBBER BELLOW SEALS – LONG - AFS-304

Applications

  • Water pumps
  • Submersible pump
  • Sewage pump

Performance Range

  • Shaft Diameter: 10…100mm
  • Pressure: 10 bar (max)
  • Temperature: -20…180°C
  • Velocity: 10 m/sec

Materials

Seal Faces: Carbon, Ceramic, SiC, Tung. Carbide
Metal Parts: SS304, SS316
Bellow: Silicon, Viton, Nitrile

SINGLE SPRING SEALS - OUTER CLUTCH - AFS-404

Applications

  • Water pumps
  • Mixers and Agitators
  • Sewage pump
  • Pulp and papers

Performance Range

  • Shaft Diameter : 10 … 100mm
  • Pressure : 18 bar ( max )
  • Temperature : -20 … 140 ° C
  • Velocity : 15 m / sec

Materials

  • Seal Faces : Carbon , Ceramic , SiC , Tung . Carbide
  • Metal Parts : SS304 , SS316
  • O – Ring : Silicon , Viton , Nitrile , PTFT

GRUNDFOS PUMP SEALS - AFS-405

Performance Range

  • Pressure : Upto 20 kg / cm²C
  • Temperature : -20 … 180 °
  • Speed : 3000 RPM

Materials

  • Hardware : SS 304 , SS 316
  • Seal Ring : Carbon , SiC
  • Mating Ring : TC , SiC , Carbon , Special Cast
  • Secondary Seal : PTFE , EPDM , Nitrile , Neoprene , Silicon , FKM

METAL BELLOW SEALS - AFS-309

Applications

  • General Chemicals
  • Petrochemicals
  • Refineries

Performance Range

  • Shaft Diameter : 18 … 100mm
  • Pressure : 20 bar ( max )
  • Temperature : -20 … 350 ° C
  • Velocity : 20 m / sec

Materials

  • Seal Faces : Carbon , SiC , Tung . Carbide
  • Metal Parts : SS316 , Carpenter 42 , Hastelloy – C , Alloy 20
  • SS Bellow : PTFT , Graphile Packing

MULTI SPRING SEAL DURA TYPE SEALS - AFS-111

Applications

  • General Chemicals
  • Petrochemicals
  • Refineries
  • Light hydrocarbons

Performance Range

  • Shaft Diameter : 18 … 100mm
  • Pressure : 10 bar ( max )
  • Temperature : -20 … 240 ° C
  • Velocity : 20 m / sec

Materials

  • Seal Faces : Carbon , SiC , Tung . Carbide
  • Metal Parts : SS316 , Hastelloy – C , Alloy 20
  • O – Ring : Viton , Nitrile , PTFT

BALANCED SINGLE COIL SPRING SEAL - AFS-106

Applications

  • General Chemicals
  • Petrochemicals
  • Light Hydrocarbons

Performance Range

  • Shaft Diameter: 10…100mm
  • Pressure: 30 bar (max)
  • Temperature: -20…140°C
  • Velocity: 15 m/sec

Materials

Seal Faces: Carbon, Ceramic, SiC, Tung. Carbide
Metal Parts: SS304, SS316, Special Alloy
O-Ring: Silicon, Viton, Nitrile, PTFT

CONICAL SPRING UNBALANCED SEALS - AFS-201

Applications

  • Water pumps
  • Submersible pump
  • Sewage pump

Performance Range

  • Shaft Diameter: 10…100mm
  • Pressure: 10 bar (max)
  • Temperature: -20…180°C
  • Velocity: 10 m/sec

Materials

Seal Faces: Carbon, Ceramic, SiC, Tung. Carbide
Metal Parts: SS304, SS316
O-Ring: Silicon, Viton, Nitrile, PTFT

RUBBER BELLOW SEALS - CLUTCH TYPE - AFS-305

Applications

  • Water pumps
  • Submersible pump
  • Sewage pump

Performance Range

  • Shaft Diameter: 10…100mm
  • Pressure: 10 bar (max)
  • Temperature: -20…180°C
  • Velocity: 10 m/sec

Materials

Seal Faces: Carbon, Ceramic, SiC, Tung. Carbide
Metal Parts: SS304, SS316
Bellow: Silicon, Viton, Nitrile

SINGLE SPRING SEALS - AFS-402

Applications

  • Water pumps
  • Mixers and Agitators
  • Sewage pump
  • Pulp and papers

Performance Range

  • Shaft Diameter : 10 … 100mm
  • Pressure : 18 bar ( max )
  • Temperature : -20 … 140 ° C
  • Velocity : 15 m / sec

Materials

  • Seal Faces : Carbon , Ceramic , SiC , Tung . Carbide
  • Metal Parts : SS304 , SS316
  • O – Ring : Silicon , Viton , Nitrile , PTFT

PTFE BELLOW SEALS - AFS-308

Applications

  • Extremely Corrosive application

Performance Range

  • Shaft Diameter : 18 … 100mm
  • Pressure : 6 bar ( max )
  • Temperature : -45 … 120 ° C
  • Velocity : 20 m / sec

Materials

  • Seal Faces : GFT , SIC , Ceramic
  • Metal Parts : SS304 , SS316 , Hast – C
  • Bellow : PTFT

PTFE BELLOW SEALS - AFS-308

Applications

  • General Chemicals and its vapours.
  • Petrochemicals and its vapours.
  • Light Hydrocarbons and its vapours.

Performance Range

  • Shaft Diameter : 25 … 150mm
  • Pressure : vacuum 40 bar ( max )
  • Temperature : -20 . 220 ° C
  • Velocity : 4 m / sec

Materials

  • Seal Faces : Carbon , SiC , Tung . Carbide
  • Metal Parts : SS316 , Hastelloy – C , Alloy 20
  • O – Ring : Silicon , Viton , Nitrile , PTFT