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Centerifugal Pump
Polypropylene Pump
Non Metallic Polypropylene Pumps
Lined Chemical Process Pumps
Moulded PP-H Ball Valves
Mechanical Seal
Lined Valves & Accessories
  Mechanical Seal
 
Double Mechanical Seal
For Top / Side Entry Agitators, Vessels and Mixers Double Acting, Independent of Direction of Rotation
 
 
 
 
 
Mechanical Seal Series : 95A/95A/CG & 95A/90A/CG
 
Standard Style Face Materials :
Carbon / Ceramic, Silicon Carbide, Tungsten Carbide, Lecrolloy
 
Metal Parts :
SS 316, SS 304, Carbon Steel, Hastelloy-B, Hastelloy-C, Monel, Alloy - 20
 
Secondary Seals :
95A/95A PTFE, GFT
95A/90A Inboard - PTFE, GFT
  Outboard - Elastomers
 
Application :
Petrochemicals and its vapours
General Chemicals and its vapours
Light hydrocarbons and its vapours
 
Seal Characteristics :
Double acting Back to Back Seals
Balanced
Cartridge Unit
Independent of Direction of Rotation
Operated with Pressurized Barrier Fluid
 
Operating Limits :
Shaft Diameter d 25.....150mm
Pressure p Vacuum .... 35 bar (max)
Temperature t Amb. ... 200° c (max)
Shaft speed n 600 rpm. (max)
Barrier fluid pressure Vessel pressure + 1.5 bar
 
Series 95A/95A/CG & 95A/90A/CG are factory assembled cartridge units used on mixtures, agitators and reaction vessels. The seals are designed for handling severe services including products emitting toxic vapours during reaction process. The design incorporates bearing located very close to the seal. This standard feature effectively arrests the shaft whip for smooth and trouble free operation enabling enhanced seal life. The cooling jacket, also a standard feature, helps to maintain cool environment around the seal. Large clearance between rotating Shaft /sleeve and mating ring permits higher deflection of the shaft, invariably associated with top entry agitators.
 
 
 
Unbalanced Seal
Single Acting, Independent of Direction of Rotation
 
 
 
 
 
Pusher Seals Mechanical Seal Series 71U & 76U
 
Standard Style Face Materials :
Carbon, Ceramic, Silicon Carbide, Tungsten Carbide, Lecrolloy
 
Metal Parts :
SS 316, SS 304
 
Secondary Seals :
71U Elastomers
76U PTFE, GFT
 
Application :
Petrochemicals
Petroleum Refinery
General Chemicals
Light Hydrocarbons
 
Seal Characteristics :
Single acting
Unbalanced
Inside mounted
Independent of direction of rotation
 
Operating Limits :
Shaft Diameter d 12 .....150mm
Pressure p 10 bar (max)
Temperature t -60 ... +200° C Velocity v : 20 m/sec.
 
Series 71U & 76U are single helical coil spring seals developed for dirty media and clogging type applications. Torque transmission from retainer shell to seal ring is done through drive lugs. All components are held together by a snap ring which helps in easier installation and removal. As all parts are interchangeable, one can convert series 71U & 76U by changing only the seal ring and the secondary seal. This concept is ideal for stock rationalization.
 
 
 
 
 
 
 
Pusher Seals Mechanical Seal Series LSP 150 & LSP 155
 
Standard Style Face Materials :
Carbon, Ceramic, Silicon Carbide, Lecrolloy, Tungsten Carbide
 
Metal Parts :
SS 316, SS 304
 
Secondary Seals :
LSP 150 PTFE, GFT
LSP 155 Elastomers
 
Application :
Crystallizing Slurry
Suspended Solids Slurry
Saturated Chemical Slurry
General Chemicals Slurry
 
Seal Characteristics :
Single acting
Unbalanced
Inside mounted
Independent of direction of rotation
Universal chemical compatibility due PTFE elastomer
 
Operating Limits :
Shaft Diameter d1 22 .....120mm
Pressure p 14 bar (max)
Temperature t _ 23 ... +200° C
Velocity v 20 m/sec.
 
Series LSP 150 & LSP 155 are single helical coil spring, bi-directional seals developed for dirty media and clogging type applications. Torque transmission from drive collar to spring holder and seal rings is done through sturdy drive lugs. The PTFE double V-packing are spring energized to give perfect dynamic sealing. As all parts are interchangeable, one can convert series LSP 155 to LSP 150 by changing only secondary seal. This concept is ideal for stock rationalization.
   
   
 
 
 
 
 
Mechanical Seal Series 81U & 86U
 
Standard Style Face Materials :
Carbon, Ceramic, Silicon Carbide, Tungsten Carbide, Lecrolloy
 
Metal Parts :
SS 316, SS 304, Hastelloy-C, Monel, Alloy - 20
 
Secondary Seals :
81U Elastomers
86U PTFE, GFT
 
Application :
Petrochemicals
Petroleum refinery
General chemicals
Light hydrocarbons
 
Seal Characteristics :
Single acting
Unbalanced
Inside mounted
Universal chemical compatibility due PTFE elastomer
 
Operating Limits :
Shaft Diameter d1 22 .....150mm
Pressure p 10 bar (max)
Temperature t _ 60 ... +200° C
Velocity v 20 m/sec.
 
Series 81U & 86U are multiple spring units developed for universal application. Their compact design permits their use in all types of centrifugal pumps. Torque transmission from retainer shell to seal ring is done through drive lugs. All components are held together by a snap ring which helps in easier installation and removal. As all parts are interchangeable, one can convert series 81U & 86U by changing only the seal ring and the secondary seal. This concept is ideal for stock rationalization.
   
   
 
Balanced Seal Single
Acting, Independent of Direction of Rotation
 
 
 
 
 
Mechanical Seal Series 81B & 86B
 
Standard Style Face Materials :
Carbon, Ceramic, Silicon Carbide, Tungsten Carbide, Lecrolloy
 
Metal Parts :
SS 316, SS 304, Hastelloy-C, Monel, Alloy - 20
 
Secondary Seals :
81B Elastomers
86B PTFE, GFT
 
Application :
Petrochemicals
Petroleum refinery
General chemicals
Light hydrocarbons
 
Seal Characteristics :
Single acting
Balanced
Inside mounted
Independent of Direction of Rotation
 
Operating Limits :
Shaft Diameter d 16 .....180mm
Pressure p 35 bar (max)
Temperature t _60....+200° C
Velocity v 20 m/sec.
 
Series 81B & 86B are multiple spring units developed for universal high pressure applications. The compact design permits their use in all types of centrifugal pumps. Torque transmission from retainer shell to seal ring is done through drive lugs. All components are held together by a snap ring which helps in easier installation and removal. As all parts are interchangeable, one can convert series 81B & 86B by changing only the seal ring and the secondary seal. This concept is ideal for stock rationalization.
 
   
   
 
Reverse Balanced Seal
Single Acting, Independent of Direction of Rotation
 
 
 
 
 
 
Mechanical Seal Series 88B1
 
Standard Style Face Materials :
Carbon, Ceramic, Silicon Carbide, Tungsten Carbide.
 
Metal Parts :
SS 316, SS 304 Hastelloy-C, Monel, Alloy - 20
 
Secondary Seals :
Elastomers
TCV
 
Application :
Corrosive Chemicals
Hydrocarbons
General & Light Chemicals
 
Seal Characteristics :
Single acting
Reverse Balanced
Outside mounted
Independent of direction of rotation
 
Operating Limits :
Shaft Diameter d1 20 ... 175 mm
Pressure p 25 bar (max)
Temperature t – 45 ... +180° C
Velocity v 20 m/sec.
 
Series 88B1 is multiple springs externally mounted reverse balanced seal with O-ring as secondary sealing member. Various seal face materials and elastomers can be offered for wide service application. This seal can also be used for corrosive services as the metallic components do not come in contact with liquid to be sealed. This seal can also install in double back to back arrangement as a internal seal. Even if barrier fluid pressure goes down this seal will not allow process fluid to mix with barrier fluid, Hence it is called reverse balanced seal.
 
   
 
Balanced Seal
Single Acting, Independent of Direction of Rotation
 
 
 
 
 
Mechanical Seal Series 81 & 81/CG
 
Standard Style Face Materials :
Carbon, Ceramic, Silicon Carbide, Tungsten Carbide.
 
Metal Parts :
Carbon / Silicon Carbide
Silicon Carbide / Silicon Carbide
Tungsten Carbide / Silicon Carbide
 
Secondary Seals :
Elastomers
TCV
 
Application :
Food Industry
Chemical Industry
Mining Industry
Water Treatment
Media Containing Slurry
 
Seal Characteristics :
Single acting
Balanced
Independent of direction of rotation
Springs are Outside Media
Stable Drive-pins / Lugs
No Shaft Fretting
 
Operating Limits :
Shaft Diameter d 14 ... 150 mm
Pressure p 25 bar (max)
Temperature t -20....180° C
Velocity v 20 m/sec.
 
Series 81 : This is a multiple springs unit specially developed for slurry application. The springs are protected from media by means of dynamic
O-ring. Although being a balance seal no need to maintain step sleeve. The sleeve of unbalanced seal can be used for this seal series without modification. Torque transmission to the seal ring is given by strong multiple drive pins / lugs.

Series 81/CG : This is cartridge construction factory assembled slide on unit. It requires tightening of stuffing box studs, nuts and detaching of location plate before starting the equipment. No dimensional measurement are to be done at site. It can be installed by even a non skill person.
 
   
 
Unbalanced Seal
Single Acting, Independent of Direction of Rotation
 
 
 
 
 
 
Mechanical Seal Series 110V & 115V
 
Standard Style Face Materials :
Carbon, Ceramic, Stellite, Silicon Carbide, Tungsten Carbide, Lecrolloy
 
Metal Parts :
SS 316, SS 304
 
Secondary Seals :
110V Elastomers
115V PTFE, GFT
 
Application :
Light Abrasive slurry
Light Sewage water
High viscosity fluid
General & light chemicals
Hydrocarbons
 
Seal Characteristics :
Single acting
Unbalanced
Inside mounted
Independent of direction of rotation
Wave spring loaded
 
Operating Limits :
Shaft Diameter d1 18 ... 170 mm
Pressure p 10 bar (max)
Temperature t _ 45 ... +180° C
Velocity v 20 m/sec.
 
Series 110V & 115V are single wave spring seals suitable for most general application. Major advantage of these seals is due to use of single wave spring. It is of compact design with reduced axial length. These seals can also be used in dirty application as spring clogging does not occur. Torque transmission from retainer shell to seal ring is through drive pin.
 
   
 
Compact Cartridge Balanced Seal
Single Acting, Independent of Direction of Rotation
 
 
 
 
 
 
 
Mechanical Seal Series 90A35/CG
 
Standard Style Face Materials :
Carbon / Silicon Carbide
Silicon Carbide / Silicon Carbide
Tungsten Carbide / Silicon Carbide
 
Metal Parts :
SS 316, SS 304, Hastelloy-C, Monel, Alloy - 20
 
Secondary Seals :
Elastomers
TCV
 
Application :
Pulp Pumps
Sludge Pumps
Syrup Pumps
Slurry Pumps
 
Seal Characteristics :
Single acting
Balanced
Inside mounted
Independent of direction of rotation
Compact cartridge unit
 
Operating Limits :
Shaft Diameter d1 20 ... 150 mm
Pressure p 18 bar (max)
Temperature t – 20 ... +180° C
Velocity v 20 m/sec.
 
Series 90A35/CG is a cartridge construction multiple spring balanced seal specially developed for equipments handling slurries, sludge's, syrups and other fluids that polymerizes or solidify with the changes in temperature. The springs are isolated from the fluid being sealed by dynamic O-ring, which enhances the seal life.

Seal requires tightening of studs, nuts and detaching of location plates before starting the equipment. No dimensional measurement to be done at site. Even non - skilled person can install the seal.
 
   
 
Unbalanced Seal
Single Acting, Independent of Direction of Rotation
 
 
 
 
 
Mechanical Seal Series 72 & 72L
 
Standard Style Face Materials :
Carbon / Lecrolloy
Carbon / Ceramic
Carbon / Silicon carbide
Silicon Carbide / Silicon Carbide
 
Metal Parts :
SS 316, SS 304
 
Secondary Seals :
Nitrile
Viton
 
Application :
Water Pumps
Submersible Pumps
 
Seal Characteristics :
Single acting
Unbalanced
Single helical coil Spring
Independent of Direction of Rotation
Torque Transmission by Elastomer bellow
 
Operating Limits :
Shaft Diameter d1 12 .... 150 mm
Pressure p 12 bar (max)
Temperature t – 20 ... +180° C
Velocity v 20 m/sec.
 
Series 72 & 72L are single coil springs with electrometric bellows for water, Oil and light duties. This seal has self aligning feature which compensate abnormal shaft end play and run out, which leads to improved service life. Electrometric bellow protects shaft and sleeve from fretting. Drive to the seal faces is given through notches – provided on retainer. Seal can be repaired in field with minimum spares minimizing the down time cost.
 
   
 
 
 
 
 
Mechanical Seal Series LSR 100
 
Standard Style Face Materials :
Silicon Carbide / Silicon Carbide
Carbon / Silicon Carbide
Carbon / Lecrolloy
Carbon / Ceramic
 
Metal Parts :
SS 316, SS 304
 
Secondary Seals :
Nitrile
Viton
 
Application :
Water Pumps
Submersible Pumps
Sewage pump
 
Seal Characteristics :
Single acting
Unbalanced
Single helical coil Spring
Independent of Direction of Rotation
Torque Transmission by Elastomer bellow
 
Operating Limits :
Shaft Diameter d1 10 .... 150 mm
Pressure p 12 bar (max)
Temperature t – 20 ... +180° C
Velocity v 20 m/sec.
 
Series LSR 100 is single coil spring rubber bellow seal used for water and oil containing soft slurries. This seal is mainly used in waste water treatment plant i.e. for sewage application. Seal has self aligning feature which compensates abnormal shaft end play & run-out, which leads to improved service life. Elastomeric bellow protect shaft / sleeve from fretting. Drive to the seal faces is given through coil spring and spring holders. Due to single coil spring, seal will not get clogged in effluent containing particles.
 
   
 
 
 
 
 
Mechanical Seal Series LSR 200 & LSR 205
 
Standard Style Face Materials :
Silicon Carbide / Silicon Carbide
Carbon / Silicon Carbide
Carbon / Lecrolloy
Carbon / Ceramic
 
Metal Parts :
SS 316, SS 304
 
Secondary Seals :
Nitrile
Viton
 
Application :
Water Pumps
Mixers
Compressors
Blenders
 
Seal Characteristics :
Single acting
Unbalanced
Single helical coil Spring
Independent of Direction of Rotation
Torque Transmission by drive ring
 
Operating Limits :
Shaft Diameter d1 16 .....75mm (0.625" ...3.0")
Pressure p 18 bar (max)
Temperature t – 20 ... +180° C
Velocity v 20 m/sec.
 
Series LSR 200 & LSR 205 is single coil spring rubber bellow seal used for Petrochemicals, Food processing, Pulp & Paper and other demanding applications. This seal is mainly used in compressors. Seal has self aligning feature which compensates abnormal shaft end play & run-out, which leads to improved service life. Elastomeric bellow protects shaft / sleeve from fretting. Drive to the seal faces is given through notches provided on retainer. Due to single coil spring, seal will not get clogged in effluent containing particles. Seal can be used for higher speed as well as for higher pressure. Seal can be repaired in field with minimum spares minimizing the downtime cost.
 
   
 
PTFE Bellow Seals
Single Acting, Independent of Direction of Rotation
 
 
 
 
 
Mechanical Seal Series 20N & 20LS
 
Standard Style Face Materials :
20N : GFT / Ceramic
20LS : GFT/Ceramic
Silicon Carbide / Ceramic
Carbon / Ceramic
Silicon Carbide / Silicon Carbide
 
Metal Parts :
SS 316, SS 304, Hastelloy-C
Springs : Hastelloy-C
 
Secondary Seals :
PTFE Bellows
 
Application :
Extremely corrosive services
 
Seal Characteristics :
Single acting
Outside mounted
Independent of direction of rotation
 
Operating Limits :
Shaft Diameter d1 18 .....100mm
Pressure p 6 bar (max)
Temperature t -45 ....+120° C
Velocity v 20 m/sec.
 
Series 20N & 20LS are designed for extremely corrosive chemicals, including concentrated acids, salts, strong oxidizing & reducing agents, and chemically active organic compounds. All components which come in contact with the liquid being sealed are made of chemically inert material. Metallic components, clamping ring and springs are located outside the media.

Series 20N : In this seal series Glass filled PTFE face is composite molded with highly flexible PTFE bellows.

Series 20LS : This seal is designed with replaceable sealing faces and is positively driven by integral lugs on bellows. These lugs impart smooth drive to the face. Replacement of faces can be done easily.
 
   
 
Metal Bellow Seal
Single Acting, Independent of Direction of Rotation
 
 
 
 
 
 
Mechanical Seal Series 50 & 55
 
Standard Style Face Materials :
Carbon / Silicon Carbide
Carbon / Tungsten Carbide
Silicon Carbide / Tungsten Carbide
 
Metal Parts :
Series 50 SS 316, SS 304, Carpenter - 42
Series 55 Has tell oy-C
 
Welded Bellows :
Series 50 AM 350
Series 55 Hastelloy-C
 
Secondary Seals :
Elastomers, PTFE, GFT
 
Application :
Chemicals
Petrochemicals
Refinery
Corrosive Chemicals
 
Seal Characteristics :
Single acting
Inherently Balanced
Inside Mounted
Independent of direction of rotation
Welded Metal Bellows
 
Operating Limits :
Shaft Diameter d1 20 ... 100 mm
Pressure p 18 bar (max)
Temperature t -20 ....+120° C
Velocity v 20 m/sec.
 
Series 50 & 55 are welded metal bellow seals used in chemical, petrochemical and refinery process pumps for moderate temperature/pressure application and for process services requiring corrosion resistance. These bellow seals are constructed by welding a series of diaphragms together at the edges to form a bellows unit. The bellows unit eliminates the need for springs, dynamic secondary seal and provides flexibility to the seal face in addition to compensating for seal face wear.
 
   
 
Balanced Seal
High Pressure, Heavy Duty Seal, Single Acting, Independent of Direction of Rotation
 
 
 
 
 
Mechanical Seal Series 900A/CG
 
Standard Style Face Materials :
Carbon / Silicon Carbide
Carbon / Tungsten Carbide
Silicon Carbide / Silicon Carbide
 
Metal Parts :
SS 316, SS 304, Hastelloy-C, Titanium, Alloy-20, Monel
 
Welded Bellows :
AM 350
 
Secondary Seals :
Elastomers
 
Application :
Oil Pipeline Pumps
Boiler Feed Water Pumps
 
Seal Characteristics :
Single acting
Balanced
Inside Mounted
Independent of direction of rotation
Multiple springs design
Sturdy drive mechanism
 
Operating Limits :
Shaft Diameter d1 25.....115 mm
Pressure p 25....150 bar
Temperature t _ 40.....180° C
Velocity v 20 m/sec.
 
Series 900A/CG is specially designed cartridge seal for pumps handling oil, water and other fluids which are being pumped at very high pressure. These seals are widely used on pipe & Boiler feed water pumps. Very sturdy design and drive arrangement makes the seal suitable for very high pressure. This being multiple spring seal, it provides uniform face loading.
 
   
 
Unbalanced Seal
Single Acting, Independent of Direction of Rotation
 
 
 
 
 
 
Mechanical Seal Series N72
 
Standard Style Face Materials :
Carbon / Lecrolloy
Carbon / Ceramic
Carbon / Silicon Carbide
Silicon Carbide / Silicon Carbide
 
Metal Parts :
SS 316, SS 304
 
Secondary Seals :
Nitrile, Viton
 
Application :
Water Pumps
Submersible Pumps
 
Seal Characteristics :
Single acting
Unbalanced
Single helical coil Spring
Independent of Direction of Rotation
Torque Transmission by Elastomer bellow
To DIN 24960
 
Operating Limits :
Shaft Diameter d1 10 ... 150 mm
Pressure p 12 bar (max)
Temperature t – 20 ... +180° C
Velocity v 10 m/sec.
 
Series N72 is single coil spring with elastomeric bellow, designed for water, oil and light duties. This seal has self aligning feature which compensate abnormal shaft end play and run out, which leads to improved service life. Elastomeric bellows protect shaft and sleeve from fretting. Drive to the seal faces is given through notches – provided on retainer. Seal can be repaired in field with minimum spares minimizing the down time cost.
 
   
 
Dry Running Seal
For Top Entry Agitators, Vessels and Mixers Single Acting, Independent of Direction of Rotation
 
 
 
 
 
 
 
Mechanical Seal Series 88B1A/DG
 
Standard Style Face Materials :
Carbon / Silicon Carbide
 
Metal Parts :
SS 316, SS 304, Hastelloy - C, Hastelloy - B, Monel, Alloy - 20
 
Secondary Seals :
Elastomers, TCV
 
Application :
Food Products
Pharmaceutical Products
 
Seal Characteristics :
Single acting
Reverse Balanced
Outside Mounted
Independent of Direction of Rotation
Dry Running
 
Operating Limits :
Shaft Diameter d 15 ... 150 mm
Pressure p 8 bar (max)
Temperature t Amb. .... 120° C (max)
Speed n 320 rpm
 
Series 88B1A/DG is factory assembled & dynamically tested seal for steel, glass lined and SS mixers, agitator & vessels. This is a multiple spring externally mounted; reverse balanced seal with O-ring as secondary sealing member. Various elastomers can be offered for wide service application. These seals are basically used on top entry agitators as dry running seals. When food products or pharmaceutical products are agitated in agitator, mixing of any other liquid will contaminate the product & affect its quality; hence these dry running seals are used. These seals don't require any external media for lubricating the faces that is why they are known as dry running seals.
 
   
 
Unbalanced Seal
Single Acting, Independent of Direction of Rotation
 
 
 
 
 
 
Pusher Seals Mechanical Seal Series LSP 160 & LSP 165
 
Standard Style Face Materials :
Carbon, Ceramic, Silicon Carbide, Lecrolloy, Tungsten Carbide
 
Metal Parts :
SS 316, SS 304
 
Secondary Seals :
LSP 150 PTFE, GFT
LSP 155 Elastomers
 
Application :
Crystallizing Slurry
Suspended Solids Slurry
Saturated Chemical Slurry
General Chemicals Slurry
 
Seal Characteristics :
Single acting
Unbalanced
Inside mounted
Independent of Direction of Rotation
Universal chemical compatibility due PTFE elastomer
 
Operating Limits :
Shaft Diameter d1 22 ... 120 mm
Pressure p 14 bar (max)
Temperature t _ 23 ... +200° C
Velocity v 20 m/sec.
 
Series LSP 160 & LSP 165 is single helical coil spring, bi-directional seals developed for dirty media and clogging type applications. Torque transmission from drive collar to spring holder and seal rings is done through sturdy drive lugs. The PTFE double V-packing is spring energized to give perfect dynamic sealing. As all parts are interchangeable, one can convert series LSP 155 to LSP 150 by changing only secondary seal. This concept is ideal for stock rationalization
 
   
 
 
 
 
 
Mechanical Seal Series 3U
 
Standard Style Face Materials :
Carbon, Ceramic, Tungsten Carbide, Silicon Carbide, Lecrolloy
 
Metal Parts :
SS 316, SS 304
 
Secondary Seals :
Elastomers, PTFE
 
Application :
Water Pumps
Circulation Pumps for central heating
Chemical Process Pumps
Sewage & Submersible pumps
 
Seal Characteristics :
Single acting
Unbalanced
Inside mounted
Dependent of direction of rotation
 
Operating Limits :
Shaft Diameter d1 12 ... 90 mm
Pressure p 10 bar (max)
Temperature t _20 + 120° C
Velocity v 20 m/sec.
 
Series 3U is a single conical helical spring, unbalanced seal with '0' ring as secondary sealing member. Various seal face materials and elastomers can be offered for wide service application. As the torque transmission is done by conical helical spring these seals are dependent of the direction of rotation. Direction of rotation is seen from the drive end of the shaft. Clockwise rotating shaft requires right handed spring and anticlockwise rotating shaft requires left-handed spring. For easier fitting, the conical helical spring should be pushed on the shaft with a twisting motion in the sense of the spring unwinding. This movement enlarges the diameter of the spring, enabling easy fitment.
 
   
 
 
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