Mechanical Shaft Seals | Rotary Joints | Components
Pusher Seals

Multi Spring Unbalance Seal

Everything in the name of Sealing...
Series 12W
Series 12W are general purpose multi coil spring unbalanced seals. These seals are provided with O-Ring Sealing device due to its compact design and narrow cross section, these seals occupies very less area in stuffing box. Lower spring loads provided through wedge or O-Ring minimizes shaft fretting. One can easily assemble and dismantle these seals through the circlip provided. These seals can be changed to balance version of its type merely by changing the carbon face only & can be provided with single, double or tandem arrangement with external seal support system and devices.
Single seal
Inside mounted
Unbalanced
Seal Features
Operating Limit
Application
Petrochemicals
General Chemical
Petroleum refinery
Light hydrocarbons
Material
Seal face : Carbon, ceramic, silicon  tungsten carbide,
Secondary sealing : Viton, GFT, PTFE, Aflas
Metal parts : SS316 , Hastelloy c, Alloy-20
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Series 12RV
Series 12RV seals are multiple spring seals. These seals are available in both balance and unbalance configuration. The rotary unit of these seals are comprises three pieces viz., seal ring, multiple springs & compression ring. The efficient cleaning of accumulations around spring when used in dirty fluids (normally the special feature of the single coil spring design) is achieved by the exposed. These seals are not affected by the direction of shaft rotation.
Seal Features
Single seal
Inside mounted
Unbalanced
Interchangeable seal face
Operating Limit
Application
Petrochemicals
General Chemical
Petroleum refinery
Light hydrocarbons
Material
Seal face : Carbon, ceramic, silicon  tungsten carbide,
Secondary sealing : Viton, GFT, PTFE, Aflas, TTV
Material : SS 316 , Hastelloy c , Alloy-20
Series 12HS
Series 12HS 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.
Seal Features
Operating Limit
Single seal
Inside mounted
Balanced
Capsulated Spring
Independent on direction of rotation
Application
General Chemical
Food Industries
Media Containing Slurry
Mining Industry
Material
Seal face : Carbon, Ceramic, Silicon, Tungsten Carbide
Secondary sealing : Viton, PTFE, aflas, TTV
Metal Components : SS-316/Hast-C,Alloy-20
: 14 mm to 150mm
: 10 kg/cm2
: -30OC…. to 200OC
: up to 20 m/s
Seal size
Pressure
Temp
Speed
 
 
 
 
: 14 mm to 120mm
: 10 kg/cm2
: -30OC…. to 200OC
: up to 20 m/s
Seal size
Pressure
Temp
Speed
 
 
 
 
Seal size
Pressure
Temp
Speed
 
 
 
 
: 20 mm to 100mm
: 10 kg/cm2
: -20OC…. to 140OC
: up to 20 m/s