Replacement Seal

​The AESSEAL CS Replacement Cartridge Mechanical Seal is a high-performance sealing solution designed for various industrial applications, particularly in pumps handling clean water, wastewater, and light chemical media. This seal is engineered to provide reliable sealing performance, ease of installation, and extended service life

The AESSEAL CS Replacement Cartridge Mechanical Seal is a single, unbalanced mechanical seal featuring a conical spring that rotates with the shaft, making it dependent on the direction of rotation. Torque transmission is achieved through this conical spring mechanism. The seal is particularly suited for applications involving clean water, wastewater, and light chemical media.

The AESSEAL P07 seal series (HE91B‑22/92A‑35/93B‑22, etc.) offers rugged, balanced mechanical sealing for a wide variety of pumps. With robust material combinations (SiC/TC/carbon faces, FKM/NBR/EPDM elastomers, SS304/316 hardware), it functions across –20 °C to +200 °C, 12–25 bar pressure, and speeds up to 20 m/s. It suits Alfa Laval/Vulcan and similar pumps, featuring ISO-certified manufacturing, automatic cartridge installation, broad shaft compatibility (10–80 mm), chemical resistance, and industrial packaging.

• Pump Fitment: Ideal for Alfa Laval/Vulcan “Type 91”, "92A", "93B", and LKH series pumps, as well as others (CN, EM, FM, GM, ME, MR).

• Industries: Pumping water, oils, mild chemicals; widely used in sanitary, chemical, petrochemical, and water-treatment systems
  
  
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The AESSEAL P07 (HE91‑22) mechanical seal is a durable, low-maintenance cartridge solution for Alfa Laval/Vulcan Type 91 pumps (22 mm shaft). Built with hard SiC/TC seal faces, robust elastomers, and high-grade SS hardware, it operates effectively across industrial temperature and pressure ranges. Cartridge-style design enhances installation reliability, while cross-referencing ensures compatibility across popular OEM parts. Supplied individually with quality assurance and export-ready packaging, it provides an excellent OEM or aftermarket replacement option.

The AESSEAL HE91B‑22 (AES P07) is a high-quality, cartridge-style replacement mechanical seal for 22 mm shaft “Type 91” pumps (Alfa Laval / Vulcan). It features durable SiC/carbon/TC seal faces, stainless steel hardware, and versatile elastomer options, delivering reliable performance across –20 °C to +150 °C (up to +200 °C) and pressures up to 1.2 MPa. Its balanced design handles speeds ≈12 m/s, making it suitable for industrial and sanitary pumps in water, chemical, and food sectors.

 

The HE92B‑35 is a direct replacement for the Aesseal P07 seal, manufactured by Harini Engineering (Tirupur, India) for use in chemical, oil, and industrial pump applications. It’s an unbalanced, conical-spring, manual mechanical seal in a polished stainless-steel housing, designed for 35 mm shafts.

• Finishing: Polished stainless-steel exterior
  
  

  • Usage: Industrial pumps for chemical, oil, food-grade & viscous liquids
    
    

The “SOEC” seal is a single-end, unbalanced mechanical seal designed for AESSEAL applications, frequently used as a drop-in replacement in EMU and Wilo pump series.

• Designed for EMU and Wilo centrifugal pumps, especially small-to-medium shaft configurations (35–75 mm) .

• Suitable for industrial and chemical services, compatible with water, oils, and mild chemicals due to choice of hard seal faces and elastomers.
  
  
  

   Material & Chemical Compatibility

   

  • Hard Faces: SiC/TC provide high durability and corrosion resistance.

  • Elastomers: EPDM ideal for water, Viton & FFKM (Kalrez) suited to aggressive chemicals.

  • Metals: Stainless steel and Hastelloy springs/hardware offer strong corrosion protection.

The W01 seal is part of AESSEAL’s Component Seal Wave‑Spring (W‑series) range, designed to fit a variety of industrial pumps including water, oil, and mild chemical services . It’s commonly offered by Indian OEMs (e.g., Harini Engineering) as a polished stainless-steel, round wave-spring seal.

• Sealing Type: Single-end, unbalanced, wave-spring mechanical seal—suitable for moderate pressures .

• Chemical Resistance: Handles clean water, lubricants, light acids/alkalis; elastomer selection ensures compatibility .

The BT-FN is a single, unbalanced mechanical seal designed for plain shafts. It features a conical spring that rotates with the shaft, making it dependent on the direction of rotation. Torque transmission is achieved through this conical spring mechanism. The seal is particularly suited for applications involving clean water, wastewater, and light chemical media

• Single seal configuration

• Unbalanced design

• Conical spring rotating with the shaft

• Direction-dependent operation

• Torque transmission via conical spring​

Burgmann CARTEX‑SN replacement seal—a widely used cartridge mechanical seal renowned for reliability, versatility, and efficiency.

Ideal for numerous industries including:

• Process and chemical

• Power generation & nuclear

• Pharmaceutical, food & beverage, water & wastewater

• Mining, pulp & paper

• Emerging sectors: CCUS, lithium, hydrogen, sustainable plastics, alternative fuels
  
  
  
  

  Performance & Cost Efficiency

   

  • Cartridge seal systems like CARTEX deliver longer service life and 30 % lower three-year lifecycle costs compared to component seals, 
    
    Benefits include:

  • • Reduced spare parts use

    • Lower repair and production downtimes

    • Optimized overall investment despite higher initial price
      
      
      

       Key Advantages

       

      • Preassembled cartridge ensures error‑proof installation.

      • Balanced single‑seal structure handles bidirectional shaft rotation.

      • Material flexibility: multiple face, seat, and seal elastomer materials allow adaptation to diverse fluids and environments.

      • Serviceability and retrofit potential: No need for seal chamber modifications.

      • Robust design: Larger springs, heavier face cross-sections, and stable drive pins enhance durability and reduce leakage points.
        
        
        
        
        
        

The G13 is the stationary seat (stator) portion of Burgmann’s elastomer bellows mechanical seal arrangement, commonly paired with MG1, MG12, or MG13 rotating bellows assemblies. It’s offered as a standalone replacement part compatible with various seal lines including Qseals ST13, Vulcan 8B and Eriks SFO

Primary Uses: Employed in water treatment, slurry and wastewater pumps, chemical and petroleum processes, industrial rotary equipment 

• Performance Benefits:

  • Compact design with simple fitment

  • Tolerant of shaft misalignment and runout

  • Flexible axial compensation via bellows

  • Suitable for most abrasive, corrosive, or fluid-handling contexts.

• G4 typically refers to a stationary seat (stator) used in mechanical seal systems .

• It forms part of a cartridge or component seal, usually paired with a rotary face (e.g., Bellows seals like MG1S‑G4 or conical spring seals like M32‑G4/M377‑G4).
  
  The Burgmann G4 system is a versatile, industrial-grade sealing platform. Whether you need just the stationary G4 seat or a full MG1/M32/M377 cartridge assembly, you can customize materials, elastomers, and design to match your application—from cryogenic to 200 °C, moderately pressurized environments, and up to 20 m/s shaft speeds. Available globally through numerous suppliers, it's ideal for a wide range of sectors, including chemical processing, food & beverage, sewage, sugar, and more.

• Common across industries: pumps in chemical, food & beverage, sewage, sugar, paper, and general process applications.
  
  
  

The Burgmann G60 is a stationary (seat) stator—the stationary component of a mechanical seal assembly. It's commonly paired with rubber-bellows rotary seals like Burgmann MG series (e.g., MG1, MG13). These stators are precision-seated to form a sealing interface with the rotating faces of the mating ring

• The G60 is just the stationary stator of a mechanical seal (free faces: Ceramic, SiC, or TC).

• It pairs with a rotary MG1 seal (bellows-type) rated for ≤1.2 MPa, –20 °C to +120 °C, up to 10 m/s
  
  

The G9 and G92 are stationary-seat (stator) components used within Burgmann’s M‑series mechanical seals—e.g., M3N, M7N. These seats interface with the rotating ring mounted on the shaft. OEM alternatives (Qseals ST09/S02U, AES S02U, Roten 7K, Vulcan 8DINL) and aftermarket units (TopBon TBG9/G92) replicate the design to DIN 24960 / ISO 3069 / EN 12576 standards.

• Typical use: Component in Burgmann M‑series seals (M3N, M7N, M60/92, etc.) for centrifugal, multistage, sewage, vertical, circulating, and chemical pumps .

• Industries: Water treatment, petrochemical, pulp and paper, wastewater, shipbuilding, food/beverage, etc. .

• OEM alternatives: Multiple cross-brands and equivalents ensure interchangeability

The H74‑D is a dual (double-face), multiple‑spring, O‑ring–driven mechanical seal from EagleBurgmann, engineered for balanced sealing performance in both directions—ideal for contaminated, abrasive, or moderate-to-corrosive fluids.

• Pressure Rating: Up to 2.5 MPa (25 bar / ≈360 psi) Axial Float: ±0.1 mm to accommodate shaft movement.
  
  
  

  Widely used in:

   

  • Water and wastewater treatment

  • Chemical processing

  • Oil, sludge, and slightly abrasive fluids

  • Sewage pumps, dosing units, and pumps with stringy/dirty media.

The Burgmann M7N (M07) mechanical seal, often referred to as the "wave-spring seal," is a robust, unbalanced, single mechanical seal designed for a wide range of rotary equipment applications. 

Introduced by Burgmann, the M7N (also called M07 in some catalogs) is engineered to meet DIN 24960 and ISO 3069 standards.This bi-directional, unbalanced seal is equipped with a non-welded continuous wave spring (or super-sinus/coil spring), providing uniform face loading and allowing for axial movement of the rotary ring

The Burgmann M2N is a single-end, unbalanced, conical‑spring O‑ring pusher seal, commonly used in circulating pumps and heating systems. Its spring-driven torque design allows operation independent of shaft rotation direction, and no set screws means no shaft damage during installation

• Operating Range:

  • Shaft diameter (d₁): 6–38 mm (0.25–1.5 in) .

  • Pressure: up to 10 bar (145 psi), with some spec sheets listing 0–1.0 MPa (~10 bar) .

  • Temperature: –20 °C to +140 °C, with some designs capable of up to +180 °C depending on materials .

  • Sliding velocity: ≤15 m/s (~50 ft/s) .

  • Axial compensation: ±1 mm to accommodate movement .

• Hardness: Carbon ~600 HV; SiC ~2,500 HV; alumina ceramic ~1,900 HV (approx)
  
  
  

• Intended Use: Suited for non-aggressive fluids in circulating pumps, heating systems, water treatment, and HVAC applications .

• Advantages:

  • Economical option for plain shaft assemblies

  • No shaft damage risk—no set screws needed

  • Short installation makes it ideal for compact housings

The Flowserve 150 Pac‑Seal is a robust, rubber-bellows mechanical seal engineered for industrial pump applications. Constructed with SS304/316, and leveraging face materials like Carbon, Ceramic, SiC, or TC, and elastomers such as NBR, EPDM, or Viton, it performs reliably up to 1.2 MPa, +180–200 °C, and 10–15 m/s. Its cartridge, bellows-based design ensures simple, error-free installation and aligns with cross-industry standards like John Crane 2, Burgmann MG1S20, and Sterling 152. Available globally via OEM and aftermarket sources, it's ideal for clean water, oils, and mild chemicals across industrial processes.

• Pumps: Suitable for Flowserve pumps rated for 150 series seals and direct cross-replacement equivalents—Pac‑Seal 150, John Crane 2, Burgmann MG1S20, Sterling 152 .

• Industries & Media: Designed for clean water, oil, mild chemicals, and moderate corrosive fluids

The Flowserve 160 Pac‑Seal is a reliable, rubber‑bellows, cartridge mechanical seal suitable for a wide range of pump applications. Compatible with Flowserve and cross-referenced systems, it accommodates moderate pressures, high shaft speeds, and broad temperature ranges. Available from OEM and alternate manufacturers (e.g., Harini Engineering, Qseals) in cartridge form, it simplifies installation, meets regulatory standards, and supports industrial service durability

• Industries: Chemical, petrochemical, water, wastewater, oil, general industrial fluid services

The Burgmann HJ92N is a balanced, wave‑spring, O‑ring pusher seal, designed for single-end use on plain (unstepped) shafts. It’s engineered for rugged operation in viscous or solids-containing media, featuring a spring-protection design that prevents clogging and shaft damage even in harsh fluids.

• Color & Finishing: Metallic stainless body with polished gland; seal faces are dark (carbon, SiC, TC) .

• Shape: Compact, cylindrical cartridge family with integrated wave spring and O-ring drive collar .
  
  
  

   Performance Specifications

   

  • Shaft Diameter (d₁): 18–100 mm (0.625″–4″) .

  • Pressure Rating:

    • Standard: up to 25 bar (~363 psi); version for >100 mm shafts rated to 50 bar (~725 psi) .

  • Temperature Range: -50 °C to +220 °C; variants rated for -20 °C to +180 °C (~+430 °F).

  • Maximum Speed: Surface speeds up to 20 m/s (~66 ft/s); typical limits around 15 m/s (~50 ft/s).

  • Axial Flexibility: Accommodates ±0.5 mm shaft movement.
    
    
    
    

  • Balanced, non-clogging seal: Encapsulated wave spring prevents solid ingress and maintains reliable operation.

  • Reversible functionality: Works regardless of rotation direction without modifying the seal.

  • Adaptable: Optional variants for vacuum conditions or sterile/food-grade tasks; built to EN12756 standard .

  • Targeted usage: Suitable for abrasive and viscous fluids—e.g. sugar juice, sludge, slurry, dairy products, wastewater, textile, pulp & paper, and mining .

The HE Burgmann M37/M37G Replacement Seal is a high-performance, elastomer bellows mechanical seal designed to meet the sealing demands of a wide variety of rotating equipment. It serves as a direct interchangeable replacement for the original Burgmann M37 and M37G models, maintaining the same level of reliability, durability, and compatibility across various pump types and process conditions.

This seal features a single-spring, elastomer bellows design, which provides self-adjusting axial movement to accommodate shaft misalignment, vibration, and wear. The elastomer bellows also eliminates the need for dynamic O-rings, reducing the potential for secondary sealing issues. The M37 model is a single-directional seal, designed for clockwise shaft rotation, while the M37G variant is balanced, enabling it to operate effectively in higher-pressure systems.

The mechanical seal includes:

• Rotary face: Typically made from high-grade Carbon, Silicon Carbide, or Tungsten Carbide

• Stationary seat: Options include Ceramic, Silicon Carbide, or Tungsten Carbide

• Secondary seal: Constructed from robust elastomers such as Nitrile (NBR), Viton (FKM), EPDM, or Kalrez, depending on chemical compatibility

• Metal components: Stainless steel (SS304/SS316) for spring and retainer, ensuring corrosion resistance and mechanical strength

The Burgmann M6912 is a precision-engineered rubber bellows mechanical seal, part of Burgmann’s MG series (M6912 derived from MG912), commonly used in pumps for chemical, petrochemical, water treatment, and general industrial applications. Its design features elastomer bellows that provide axial flexibility and isolation from corrosive fluids.

• Operating Parameters:

  • Pressure: Up to ~12 bar (170 psi)
    
    
    

  • Shaft Speed: Up to ~10 m/s (~2000 fpm)
    
    
    
    

    Applications

     

    • Commonly used in centrifugal pumps for chemicals, water treatment, and process fluids under moderate pressure and temperature

    • Ideal for applications with slight shaft misalignment due to bellows compliance

    • Often employed as direct replacements for OEM burgmann MG912 or similar cartridge seals

The EagleBurgmann MFL85N (HE) is a balanced, single, metal‑bellows seal designed for plain shafts and equipped with a rotating metal bellows. Tailored for extreme temperatures and high-viscosity fluids, it ensures adaptability across diverse industrial settings.