The HE160B Mechanical Seal is a high-performance sealing solution engineered to provide reliable and efficient sealing in a wide range of industrial applications. Designed to meet the rigorous demands of pumps, compressors, agitators, and rotating equipment, the HE160B combines robust construction, excellent chemical resistance, and superior operational stability. This seal is commonly used in industries such as chemical processing, petrochemicals, pharmaceuticals, water treatment, pulp and paper, and food processing, where high reliability and durability are essential.

Constructed with high-quality materials, the HE160B Mechanical Seal typically features a combination of SIC (Silicon Carbide), Carbon, and Tungsten Carbide for the seal faces, with secondary sealing elements made from elastomers such as Viton, EPDM, or NBR, depending on the application's chemical and temperature requirements. The use of Silicon Carbide and Tungsten Carbide ensures excellent resistance to wear, corrosion, and thermal shock, making the HE160B suitable for both abrasive and corrosive environments.

One of the key advantages of the HE160B design is its balanced seal configuration, which allows it to withstand higher pressures while minimizing wear and leakage. The balanced design also reduces the hydraulic forces acting on the seal faces, resulting in extended service life and lower maintenance requirements. This makes the HE160B a preferred choice for both standard and demanding sealing applications.

The HE160B seal is typically a single-spring, pusher-type mechanical seal with a compact, modular structure that simplifies installation and maintenance. The spring element is robust and resists clogging, even in fluids containing solids or slurry-like suspensions. Its non-clogging spring design and precise alignment minimize friction and allow the seal to maintain consistent performance under fluctuating operating conditions.

The seal can handle a wide temperature range, often from -20°C to +180°C, and can sustain shaft speeds up to 3600 RPM, depending on the size and configuration. Its pressure capacity can reach up to 20 bar, making it well-suited for both vacuum and pressurized systems. The HE160B also offers good axial and radial runout compensation, ensuring a tight seal even with shaft deflection or minor misalignments.

In terms of dimensions, the HE160B is available in various standard sizes, typically ranging from 20 mm to 100 mm shaft diameters, though custom sizing options are also possible. Its compact dimensions allow for easy integration into existing equipment without significant modifications.

Additionally, the HE160B is compliant with international standards such as ISO 3069 and DIN 24960, ensuring compatibility with a wide range of industrial equipment. The seal’s standardized build ensures interchangeability and ease of replacement.

The HE208 mechanical seal, designed and manufactured by Harini Engineering in Tirupur, is a highly durable, single-spring rotary seal primarily used in sanitary and industrial pump applications. Engineered with a polished stainless-steel housing (SS 304), it excels in sectors such as food processing, dairy, pharmaceuticals, beverages, and general chemical handling

• Hygienic Maintenance: Polished SS prevents microbial contamination.

• Corrosion Resistance: SS 304 body with chemical-resistant elastomers ensures durability.

• Simplicity & Cost: Unbalanced, single-spring design reduces complexity and cost.

• Versatility: Compatible with a variety of sanitary and industrial pumps without extensive modifications

The HE208/1 mechanical seal is designed primarily for sanitary pump applications, offering reliable shaft sealing for industries like food, dairy, pharmaceuticals, and beverages. Built with stainless steel construction and a polished finish, this seal is engineered to withstand demanding sanitary environments while maintaining a corrosion-resistant and hygienic profile

• Hygienic Compatibility: Polished SS 304 surface prevents microbial buildup — critical in sanitary applications.

• Durability: SS 304 provides a robust seal body; paired with elastomers for longevity.

• Cost-Effective: Simpler single-spring design offers reliability at a lower cost than high-end balanced seals.

• Ease of Replacement: Standard round form factor fits many pump housings; quick to swa

The HE208/11B—commonly referred to as a “Type 208” mechanical seal—is a balanced, single‑spring (or multi‑spring) elastomer‑ended seal designed for pumps, mixers, and other rotating equipment. It is often supplied as both single-end and dual-end models and is classified as ultra-high-speed, suiting high-performance and high-pressure applications

This versatile seal family supports numerous sectors:

• Pumps (clean, sewage, slurry), compressors, mixers, and agitators

• Media including water, oil, chemicals, moderately corrosive fluids

• Industries: municipal, chemical, food & beverage, petrochemical, pharmaceuticals, pulp & paper, power & refinery

The HE 208/2 (also referenced generically as Type 208 or model 208‑2) is a double-end, balanced mechanical seal designed for shaft sealing in pumps—particularly submersible, sanitary, sewage, slurry, and chemical process pumps. It’s engineered to handle a broad range of industrial applications requiring reliable sealing under varying conditions.

Double-End Design: Essentially a dual seal composed of two sealing faces working in tandem. Depending on the manufacturer's design, configurations may include back-to-back (faces opposite directions, with barrier fluid in between) or face-to-face arrangements

• Balanced Seal: The seal face load is shared between the two ends, allowing for higher pressure limits while minimizing face distortions and wear.

• Bellows or Pusher Type: Many HE 208 variants incorporate a bellows-style secondary seal, enabling axial flexibility and reducing the number of dynamic O-rings
  
  
  

• Pumps: Submersible, lowara-sanitary, slurry, sewage, and chemical pumps

The HE2200/1 is a single, balanced, O‑ring mechanical seal—ideal for pumps and compressors in a variety of industries. It’s designed as an ultra-high-speed seal (per supplier’s terminology), offering robustness alongside ease of installation and strong sealing performance

• Balanced Design: Reduces net pressure on seal faces, enhancing stability and reducing wear.

• O‑ring Secondary Seals: Provide reliable sealing and ease of maintenance.

• Suitability: The seal is also referred to as “Operational Temperature Mechanical Seal,” highlighting its broad use in moderate-to-high-speed rotating equipment
  
  
  

  • Industries: Petrochemical, food and beverage, water and wastewater, power, pharmaceutical, paper, chemical, refinery.

  • Pump Types: Centrifugal pumps, mixers, compressors, sanitary rotating equipment.

  • Media Compatibility: Handles acids, alkalis, organic solvents, oils—depending on selection of elastomer and face materials.

• HE2200/2 is a hygienic, single mechanical seal with rubber elastomer and stainless/metal components designed for sanitary pumps.

• It’s customizable to your required shaft diameter, face material, and operating conditions.

• Use shaft ID, seat OD, bellows width, and elastomer compatibility to specify the exact dimensions.
  
  

• Model: HE2200/2

• Type: Single mechanical seal (likely single-spring, typical for sanitary pumps)

• Material: Rubber (primary elastomer); commonly paired with carbon/stainless steel face components and EPDM secondary seals

The HE2200/3 mechanical seal, supplied by Harini Engineering (Tirupur, Tamil Nadu), is a round, rubber-faced, external-mounted mechanical seal designed primarily for sanitary pump applications,

Its robust rubber (elastomer) composition and streamlined design make it ideal for corrosion resistance, fluid compatibility, and ease of maintenance.

• Excellent chemical and fluid compatibility via rubber.

• Compact design, easy to install and service.

• Cost-effective pricing and low MOQ for spare parts.

• Capable of handling high pressure (1.2 MPa) and wide temperature range (–20 °C to 180 °C).

The HE28 Mechanical Seal is a compact, efficient, and highly reliable mechanical seal designed for general industrial applications requiring robust sealing performance. This seal type is commonly used in centrifugal pumps, water systems, light chemical processing units, and rotary equipment that handle non-aggressive and moderately corrosive media. Its simplicity in design, ease of installation, and adaptability make it a preferred choice for OEMs and maintenance teams across various sectors.

The HE28 is a single, unbalanced, pusher-type mechanical seal, ideal for low to medium pressure and moderate temperature applications. Its unbalanced design allows for cost-effective performance in systems where operating pressures do not exceed typical limits. The seal’s pusher-type configuration means it compensates for axial shaft movement during operation, ensuring consistent contact between seal faces for leak prevention.

Seal faces are manufactured from combinations such as Carbon vs Ceramic, Silicon Carbide vs Carbon, or even Tungsten Carbide vs Carbon, depending on the intended use and the nature of the fluid being sealed. These material pairings provide a balance of hardness, chemical compatibility, and thermal resistance. The carbon face is often resin-impregnated to enhance wear life, while the mating face is polished to a fine finish to reduce friction and leakage.

The secondary sealing elements, such as O-rings, are available in Viton®, Nitrile (NBR), EPDM, or PTFE, offering flexibility in application environments. These elastomers are selected based on fluid type, temperature range, and desired durability. For example, Viton is widely chosen for its chemical resistance and performance under elevated temperatures.

All metallic components in the HE28 seal are typically made of stainless steel SS304 or SS316, depending on the chemical environment and client specifications. These materials ensure mechanical strength and corrosion resistance, particularly in wet or mildly corrosive conditions.

The HE28 is engineered to operate at pressures up to 10 bar, and shaft speeds up to 3000 RPM, with a working temperature range of -20°C to +120°C. This makes it well-suited for water pumps, HVAC systems, agricultural pumps, light oil systems, and utility pumps in industries such as food processing, textile, pulp and paper, and general manufacturing.

In terms of design, the HE28 is compact and designed for ease of assembly and disassembly. It fits within DIN and ISO dimensional standards, making it easy to replace in existing systems or integrate into new equipment. Its simple spring mechanism applies consistent pressure to maintain face contact while allowing for thermal expansion and minor shaft deflections.

Overall, the HE28 Mechanical Seal offers a durable, cost-effective sealing solution with versatile material options and excellent operational stability. Its practical performance across a range of low- to medium-duty applications ensures process efficiency, reduces leakage and downtime, and extends pump service life. With proper material selection and installation, the HE28 proves to be a reliable sealing partner in diverse industrial environments.

The HE290 is a balanced, cartridge-style mechanical seal, designed for versatile use in centrifugal, process, eccentric screw, and chemical pumps. It excels in demanding industries—petrochemical, chemical, pharmaceutical, pulp & paper, water/wastewater, food & beverage—where operational reliability and easy maintenance are essential

• Reliable sealing across a broad pressure and temperature spectrum

• Balanced operation supports high-pressure applications without excessive wear

• Minimal radial space reduces installation constraints

• Non-contacting springs remain unexposed to pumped media, reducing clogging or wear

• Bi-directional compatibility simplifies pump system configurations

The HE502, equivalent to John Crane Type 502, is a single‑end, unitized elastomer bellows mechanical seal designed for compact and confined gland environments. Known for its robustness and adaptability, it excels in process pumps, water systems, HVAC, and light chemical applications

• Ideal for confined gland depths such as in DIN 24960-compliant pumps
  
  Working Pressure: Up to 40 bar (≈580 psi) depending on size/material combo
  
  Pressure (Bar): Typically up to 40 bar; many sources list 25–40 bar
  
  Working Temperature / Temperature Range (°C): –40 °C to +205 °C
  
  Shaft Speed in RPM: Linear tip speed up to ~13 m/s (≈ 2 500 fpm); RPM depends on shaft diameter – example: at 50 mm shaft ≈ 3 000 RPM
  
  Tensile Strength: Not usually specified; components meet mechanical standards for SS and elastomers per manufacturer guidelines.
  
  
  

The HE60 mechanical seal is a robust, polished-SS balanced single-face seal with external springs, supplying reliable sealing in industrial pumps and rotating equipment. It supports variable shaft sizes, offers easy maintenance, and performs well under typical industrial pressures and temperatures.

• Commonly used in centrifugal pumps, mixers, and compressors across industries such as chemical processing, water treatment, and general industrial services.

• Especially beneficial where compact external sealing and minimal shaft gland space are needed.
  
  

  • Corrosion Resistance: SS304 construction guards well against a broad range of industrial fluids.

  • Maintenance Ease: Outside-mounted springs allow quick disassembly and servicing without disturbing the seal faces.

  • Balanced Design: Promotes low friction, smoother start-up, and lower heat under pressure—boosting reliability.

  • Versatility: Suitable for varied applications, from water and oil to mildly abrasive or chemical fluids.
    
    

  • Temperature Range: While specific values for HE60 aren't listed, SS304 with typical elastomers handles roughly –20 °C to +120 °C, adaptable based on elastomer-grade selection.

  • Pressure Handling: Capable of withstanding industrial conditions—likely up to 10–20 bar, consistent with seals of this type.

  • Speed Capability: Though not documented, external-balanced seals in this category generally support shaft speeds up to 3,600 RPM (~15–20 m/s surface speed).

The HE70 Mechanical Seal, commonly offered by Harini Engineering (Tirupur, Tamil Nadu), is an external-mounted, multi-spring, reverse-balanced single-face mechanical seal constructed from SS304 stainless steel. It’s designed for seamless compatibility with shaft sizes from ½″ to 4″ (12–100 mm) and suitable for various industrial fluids

• Compact and easy to install with external spring access

• Flexibility in face materials to match fluid characteristics

• Balanced design minimizes friction and prolongs life

• Cost-effective, especially for small-batch industrial use

The HE80D Mechanical Seal is a high-performance, double-spring, pusher-type seal engineered to deliver exceptional reliability and longevity in demanding industrial applications. Designed for use in centrifugal pumps, mixers, agitators, and rotating equipment, the HE80D is particularly suited for processing operations in industries such as chemical, pharmaceutical, food and beverage, wastewater treatment, and light hydrocarbon handling.

At its core, the HE80D is a single, unbalanced mechanical seal with a compact and robust construction. It features a double conical spring design, which provides even pressure distribution across the seal faces, ensuring a consistent and reliable sealing interface. This arrangement allows for effective sealing even under conditions of moderate shaft misalignment or vibration, making the HE80D a preferred choice in situations where stability and continuous operation are critical.

The sealing faces of the HE80D are typically manufactured from combinations like Carbon vs. Ceramic, Silicon Carbide vs. Carbon, or Tungsten Carbide vs. Carbon, selected according to the application environment and the nature of the media being sealed. These face materials offer a balance of hardness, thermal stability, and chemical resistance, ensuring long service life and low wear. The carbon face, often resin-impregnated, provides excellent self-lubricating properties, while the harder mating face (ceramic or carbide) resists abrasion and chemical attack.

The secondary seals (O-rings or gaskets) are available in Viton®, EPDM, Nitrile (NBR), or PTFE, depending on the chemical compatibility requirements. The choice of elastomer ensures optimal resistance to aggressive fluids, temperature variations, and process contaminants. The metallic components, such as the springs, retainers, and gland plates, are typically made from SS304 or SS316 stainless steel, providing mechanical strength and corrosion resistance, especially in chemically exposed environments.

The HE80D is designed for operating pressures up to 12 bar and shaft speeds up to 3600 RPM, with a typical temperature range from -20°C to +140°C. These specifications make it ideal for handling a wide range of liquids, including water, light chemicals, solvents, and oils. Its versatility allows for integration into both horizontal and vertical equipment, and it is particularly effective in clean media or lightly contaminated fluids.

One of the standout features of the HE80D is its easy installation and maintenance. The seal’s structure allows for quick assembly without the need for complex tools or precision alignment, reducing downtime during replacement or servicing. It is designed to comply with DIN 24960 / ISO 3069 standards, ensuring interchangeability with other mechanical seals and compatibility with standard pump housings.

In summary, the HE80D Mechanical Seal is a versatile and durable solution for fluid sealing in medium-duty industrial applications. Its advanced design, material flexibility, and performance range make it a cost-effective choice for operators seeking reliability and low maintenance costs. Whether in continuous or intermittent service, the HE80D ensures excellent sealing integrity, operational efficiency, and reduced equipment wear.

The HE9 mechanical seal, produced by Harini Engineering (Tirupur, Tamil Nadu), is a compact, external-mounted, single-face seal with a balanced or unbalanced configuration. It’s engineered for industrial rotary equipment such as pumps and compressors. Available in shaft sizes from approximately ½″ up to 4″ (12–100 mm), it delivers reliable performance with a polished SS304 stainless steel housing

• Body & Hardware: Precision-polished SS304 stainless steel, available in silver or black finishes .

• Seal Faces: Typically a combination of carbon vs. ceramic, silicon carbide, or tungsten carbide, selected based on service conditions.

• Springs: Designed with external placement (outside fluid path) to resist fouling and streamline servicing.

• Elastomers: Secondary seals in NBR, EPDM, or FKM (Viton) are available per fluid requirements

The HE92-42 Mechanical Seal is a precision-engineered, high-performance mechanical seal specifically designed for use in pumps, agitators, and rotating equipment operating under demanding industrial conditions. Known for its rugged construction and long service life, this seal is particularly suited for applications in the chemical, petrochemical, pharmaceutical, water treatment, and food processing industries.

The HE92-42 is a single, balanced, pusher-type mechanical seal, which allows it to handle moderate to high pressures while maintaining excellent sealing performance. The balanced design minimizes face load and reduces friction between seal faces, resulting in lower heat generation and increased durability. It is engineered to accommodate axial shaft movements and moderate misalignments, offering operational flexibility across various equipment setups.

The seal faces of the HE92-42 are available in high-grade materials such as Silicon Carbide (SiC), Tungsten Carbide (TC), or Resin-impregnated Carbon, selected based on fluid compatibility, process requirements, and desired thermal performance. These materials provide excellent resistance to wear, corrosion, and thermal stress, ensuring reliability in both corrosive and abrasive media.

The secondary sealing components, including O-rings and gaskets, are made from premium elastomers such as Viton, EPDM, or Nitrile (NBR). These materials are chosen for their chemical compatibility, resilience, and ability to function across a wide temperature spectrum. The metallic components, including the springs and gland rings, are typically manufactured using stainless steel grades SS304 or SS316, offering superior strength and corrosion resistance in harsh environments.

The HE92-42 Mechanical Seal is capable of operating at pressures up to 20 bar and shaft speeds of up to 3600 RPM. It is also engineered to function within a broad temperature range from -20°C to +180°C, making it suitable for both cold and high-temperature fluids. This makes the seal ideal for handling acids, bases, oils, solvents, light slurries, and water, among other process fluids.

This seal conforms to DIN 24960 and ISO 3069 standards, ensuring compatibility with a wide range of pump brands and types. Its modular, compact construction allows for easy installation, replacement, and maintenance, reducing downtime and ensuring continued productivity in industrial environments.

Applications for the HE92-42 Mechanical Seal include its use in centrifugal pumps, vacuum pumps, agitators, compressors, and other rotating process equipment. Due to its versatile design and material flexibility, it is often the seal of choice for operators looking to standardize across multiple systems while maintaining high sealing performance.

In conclusion, the HE92-42 Mechanical Seal delivers dependable sealing under varying operational conditions, with optimized material selection and design engineering for durability, efficiency, and chemical resistance. Whether in continuous or batch processing environments, it helps reduce leakage, lower maintenance costs, and extend the lifespan of the machinery it serves.

The HE92B-53 Mechanical Seal is a precision-engineered sealing unit designed to offer high reliability and durability in industrial rotary equipment. Commonly used in centrifugal pumps, chemical processing units, water treatment systems, and other rotating machinery, this seal model is tailored for applications that demand a robust sealing mechanism with resistance to harsh chemicals, high temperatures, and elevated operating pressures.

At the core of the HE92B-53’s design is its single balanced, pusher-type configuration, allowing it to maintain sealing integrity even under fluctuating operating conditions. The balanced design reduces face load pressure, which minimizes wear, frictional heat, and energy loss, thereby increasing seal life and operational efficiency. The pusher-type element is particularly beneficial in handling axial movements of the shaft caused by thermal expansion or process changes.

This seal is constructed from high-grade, corrosion- and wear-resistant materials. The primary sealing faces are typically composed of Silicon Carbide, Tungsten Carbide, or Resin-Impregnated Carbon, chosen based on specific fluid compatibility. These materials are known for their superior hardness and resistance to thermal shock, abrasion, and chemical attack. The mating ring is precisely lapped to ensure a leak-tight seal, even in demanding applications.

The secondary sealing elements, such as O-rings or gaskets, are made from elastomers like Viton, EPDM, or Nitrile (NBR). Each of these materials is selected for their chemical resistance and flexibility across a broad temperature range. The metallic components of the HE92B-53—springs, retainers, and gland plates—are fabricated from stainless steel grades SS316 or SS304, offering excellent structural integrity and corrosion protection.

The HE92B-53 Mechanical Seal is engineered to handle pressures up to 20 bar and shaft speeds of up to 3600 RPM, making it suitable for both moderate and high-speed applications. It operates effectively within a temperature range of -20°C to +180°C, ensuring performance in both chilled and heated fluid systems. Thanks to its high tensile strength and low leakage design, this seal helps reduce environmental risks and ensures process efficiency.

Its modular construction enables easy installation and maintenance. It conforms to international standards such as DIN 24960 and ISO 3069, ensuring compatibility with a wide range of pump models and facilitating global replacements. This makes the HE92B-53 a preferred choice for OEMs and MRO teams alike.

In terms of application, the HE92B-53 is suitable for sealing chemicals, solvents, hydrocarbons, slurries, water, and light oils. It finds extensive use in industries such as chemical processing, oil and gas, pharmaceuticals, pulp and paper, food and beverage, and general industrial operations.

HE950-style mechanical seal (likely part of the Burgmann HJ92N/H7N family) is a balanced, spring-assisted, corrosion-resistant round cartridge seal, engineered for industrial applications involving pressures up to ~25 bar, temperatures from –50 °C to +220 °C, and shaft speeds up to ~3,600 RPM. Construction uses tough materials—SiC/TC/carbon faces, stainless or Hastelloy metal, and elastomers chosen per fluid compatibility. Dimensional specs (ID, OD, thickness, weight) vary by size and must be confirmed via datasheet. Certifications include ISO9001, and industry-grade warranties are standard


Balanced, single or dual, spring-actuated cartridge seal engineered for demanding industrial fluids and rotating shaft applications. Offers directional independence, robust corrosion resistance, and excellent performance under varying conditions.

• Seal faces: SiC, TC, carbon;

• Elastomers: NBR, EPDM, Viton, Aflas;

• Springs & metals: SS304/316, Hastelloy C‑4; optional 904L, Titanium

The HE9T is a polished SS304 stainless steel round mechanical seal from Tirupur-based Harini Engineering, designed for industrial rotating equipment. Selling at approximately ₹2,500–₹3,000 per unit, it shares common design traits with the HE9 and HET50 series.

• Usage: Suited for industrial pumps in chemical processing, water/wastewater, petroleum, HVAC, and general duty

• Suitable For: Clean water, oils, mild chemicals—performance subject to elastomer choice

• Certification: Not documented; Harini OEM products typically align with ISO-quality standards

• Warranty: Typically short term; no formal data publicly available

The HEGLF is a round, polished stainless‑steel mechanical seal—likely a non‑pusher cartridge or component seal—manufactured in India (e.g., Harini Engineering) for industrial applications. It’s offered new, typically in polished silver/black finishes, intended for use across a range of pumps and rotating equipment

• Metals: SS316/304 for rust resistance.

• Seal faces: Likely silicon carbide, tungsten carbide, or carbon/graphite—common face combos in this performance class.

• Secondary seals: Typical elastomers include NBR, EPDM, FKM/Viton—color hints at black elastomer.

• Chemical resistance: Suits industrial fluids; stainless steel housing aids corrosion performance.
  
  
  

• Usage: Sealing in industrial pumps—centrifugal, process, water, wastewater, slurry systems .

• Applications: Chemical, petrochemical, water treatment, pulp & paper, food/beverage, oil & gas sectors.

• Seal Type: Categorized as "Industrial Seals" suitable for heavy-duty use.

The HEGLF‑3 is a single‑end, balanced mechanical seal, designed for use in centrifugal pumps—particularly Grundfos CR/CRI/CRN series and similar models. It’s commonly supplied as a semi‑cartridge or flange cartridge seal for easy installation and reliable performance in water, oil, sewage, and mildly corrosive fluids

Fluids: Effective with clean water, sewage water, oils, and moderately corrosive media—thanks to durable face and elastomer selection

Chemical Resistance: Dependent on elastomer choice—EPDM resists acids and alkalis; Viton/NBR provide broad chemical compatibility

The HEGLF‑5 mechanical seal is manufactured by Harini Engineering, a Tirupur-based Indian OEM specializing in mechanical seals and industrial components since 2010 . It’s offered as a polished, round, single-coil spring mechanical seal suitable for industrial pump applications.

Color: Silver metallic housing with black sealing elements

• Shape: Round, compact, cartridge/component seal
  
  Finishing: Polished stainless steel casing for corrosion resistance and ease of installation.
  
  
  

• Usage: Designed for industrial pumping systems—centrifugal, process, water, wastewater, oil .

• Suitable For: Clean water, oils, moderate chemical fluids, and sewage services.