Seal type SSI-107GL are factory assembled & dynamically tasted cartridge units for steel, glass lined, ss mixers, agitators & vessels. These are used with non pressurized barrier fluid preferably clean soft water because of its good heat transfer qualities. Fluids like oil, hydrocarbon, solvents etc. can also be used as buffer fluid by considering the corrosion resistance of wetted parts & compatibility with main media to be sealed. These seals are supplied with cooling water jacket, which ensure cool running of seals.

SSI-107 Mechanical Seal for Vertical Type Agitation Equipment

Structural Features: SSI-107GL   is Single end   unbalanced  and balanced, wet seal without bearing arrangement. The component is cartridge seal with easy installation.

Industrial Standards: HG21571-95

Scopes of Application: mainly used in top driven vertical type agitation equipment, which does not have strict requirements for leak proof ness.

Operation Parameters

• Pressure: – 0.1 0.6 MPa (when the pressure is bigger than 0.6 MPa, the pressure balancing device is needed and its connection size can be customized)
• Temperature: – 20 150 ºC (cooling tank is required if the temperature is higher than 150 ºC and the installation height should be 100 mm higher than normal)
• Linear Speed: 2 m/s or less

Materials

• Rotary Ring Face: SiC/Carbon
• Stationary Ring Face: CERAMIC/SiC
• Elastomers: /PTFE/FFKM
• Springs: /SS316/HC-276
• Metal Parts: SS304/SS316/SS316

Customization: Changes of materials for getting other operating parameters are possible. Contact us with your requirements.

Type SSI-105: seals are outside mounted balanced seal, which

require no shaft or sleeve step for balancing SSI-105 seal

shows good performance in high vacuum conditions. Since

no auxiliary equipment are needed for installation, it is

very cost effective & economical.

Dual seals are recommended for a variety of purposes that include:

• To prevent a costly product from leaking.
• To prevent a dangerous product from leaking to the atmosphere.
• To prevent a pollutant from escaping to the atmosphere.
• As a back up seal to prevent costly down time when the first seal wears out or fails. This is an important element in any predictive maintenance program.

All of the above are sensible reasons for using two seals in a pump, but In this paper we’ll be considering the use of dual seals as an environmental control to prevent the sealed product from either opening the seal faces, or damaging one of the seal components, the two reasons any mechanical seal ever failed.

We can use the dual seals to:

• Control the temperature at a seal face.
• Prevent a pressure drop across a seal face.
• Eliminate atmospheric conditions outboard of a mechanical seal.
• To break down the pressure in a high pressure application, by inserting an intermediate pressure between the seals. Two lower pressure seals can then be used to seal a high pressure fluid that would normally require a very expensive high pressure mechanical seal.
• To provide a lubricant if one is needed to prevent “slip stick“. This is almost always the case when you are sealing a gas.

Dual seals can be of either the rotating or stationary version and can be installed in four different configurations.

• Back to back or facing in opposite directions
• Tandem or facing in the same direction
• Face to face or facing towards each other
• Concentric or one inside the other.

The fluid that circulates between the seals is called barrier fluid if it is higher than stuffing box pressure. It is called buffer fluid if it is lower than stuffing box pressure. It can be circulated between the two seals by:

• Natural convection using a convection tank. Insulated piping coming from the top of the gland to the convection tank, and finned piping coming out of the tank will aid convection if heat removal is a problem.
• A pumping ring can be installed between the seals for those instances where natural convection is not sufficient to remove the heat being generated between the faces. This is very necessary when oil is used as the barrier fluid. Oil has a low specific heat and poor conductivity, making it a poor choice as a barrier fluid. Most of the newer cartridge dual seals come equipped with a built in pumping ring.
• Introducing the fluid between the seals, from an external source. Be sure to bring the fluid in at the bottom of the gland and out the top to prevent an air pocket from forming in the gland.

The following illustrations describe the rotating version (the spring or springs rotate with the shaft) of these dual seal configurations. You should be aware that a stationary version is also available from any of the major seal companies. You should also consider:

• Use only the hydraulically balanced version of these seals to prevent the generation of excessive heat between the seal faces.
• Two way balance is always desirable in any dual seal application to allow you the option of using either a high or low pressure barrier fluid and to prevent the seal faces from opening if either the system or the barrier fluid pressure fluctuates.
• Be sure to select seal faces with good thermal conductivity.
• Try to locate any elastomers away from the seal faces if possible. Elastomers are very sensitive to heat.

seal type ssi-55mnc is specialized capsulated multi spring single cartridge seals it is complete assembled unit for pumps . this seals suitable for sludges, syrup, water, oil & chemicals used in moderate pressure design balanced mechanical pumps. These seals are independent of direction of rotation, pre assembled cartridge unit easy to install with different pcds pumps due to slots provided on gland plate and these seals can be offered in balanced configuration. As all parts are interchangeable, one can convert this series by changing only the dynamic ring and the secondary seal, this principle is ideal for stock rationalization, this seals are comfortable to use in wide range of application as below

Seal type SSI-107GL are factory assembled & dynamically tasted cartridge units for steel, glass lined, ss mixers, agitators & vessels. These are used with non pressurized barrier fluid preferably clean soft water because of its good heat transfer qualities. Fluids like oil, hydrocarbon, solvents etc. can also be used as buffer fluid by considering the corrosion resistance of wetted parts & compatibility with main media to be sealed. These seals are supplied with cooling water jacket, which ensure cool running of seals.

SSI-107 Mechanical Seal for Vertical Type Agitation Equipment

Structural Features: SSI-107GL   is Single end   unbalanced  and balanced, wet seal without bearing arrangement. The component is cartridge seal with easy installation.

Industrial Standards: HG21571-95

Scopes of Application: mainly used in top driven vertical type agitation equipment, which does not have strict requirements for leak proof ness.

Operation Parameters

• Pressure: – 0.1 0.6 MPa (when the pressure is bigger than 0.6 MPa, the pressure balancing device is needed and its connection size can be customized)
• Temperature: – 20 150 ºC (cooling tank is required if the temperature is higher than 150 ºC and the installation height should be 100 mm higher than normal)
• Linear Speed: 2 m/s or less

Materials

• Rotary Ring Face: SiC/Carbon
• Stationary Ring Face: CERAMIC/SiC
• Elastomers: /PTFE/FFKM
• Springs: /SS316/HC-276
• Metal Parts: SS304/SS316/SS316

Customization: Changes of materials for getting other operating parameters are possible. Contact us with your requirements.

Type SSI-105: seals are outside mounted balanced seal, which

require no shaft or sleeve step for balancing SSI-105 seal

shows good performance in high vacuum conditions. Since

no auxiliary equipment are needed for installation, it is

very cost effective & economical.

Dual seals are recommended for a variety of purposes that include:

• To prevent a costly product from leaking.
• To prevent a dangerous product from leaking to the atmosphere.
• To prevent a pollutant from escaping to the atmosphere.
• As a back up seal to prevent costly down time when the first seal wears out or fails. This is an important element in any predictive maintenance program.

All of the above are sensible reasons for using two seals in a pump, but In this paper we’ll be considering the use of dual seals as an environmental control to prevent the sealed product from either opening the seal faces, or damaging one of the seal components, the two reasons any mechanical seal ever failed.

We can use the dual seals to:

• Control the temperature at a seal face.
• Prevent a pressure drop across a seal face.
• Eliminate atmospheric conditions outboard of a mechanical seal.
• To break down the pressure in a high pressure application, by inserting an intermediate pressure between the seals. Two lower pressure seals can then be used to seal a high pressure fluid that would normally require a very expensive high pressure mechanical seal.
• To provide a lubricant if one is needed to prevent “slip stick“. This is almost always the case when you are sealing a gas.

Dual seals can be of either the rotating or stationary version and can be installed in four different configurations.

• Back to back or facing in opposite directions
• Tandem or facing in the same direction
• Face to face or facing towards each other
• Concentric or one inside the other.

The fluid that circulates between the seals is called barrier fluid if it is higher than stuffing box pressure. It is called buffer fluid if it is lower than stuffing box pressure. It can be circulated between the two seals by:

• Natural convection using a convection tank. Insulated piping coming from the top of the gland to the convection tank, and finned piping coming out of the tank will aid convection if heat removal is a problem.
• A pumping ring can be installed between the seals for those instances where natural convection is not sufficient to remove the heat being generated between the faces. This is very necessary when oil is used as the barrier fluid. Oil has a low specific heat and poor conductivity, making it a poor choice as a barrier fluid. Most of the newer cartridge dual seals come equipped with a built in pumping ring.
• Introducing the fluid between the seals, from an external source. Be sure to bring the fluid in at the bottom of the gland and out the top to prevent an air pocket from forming in the gland.

The following illustrations describe the rotating version (the spring or springs rotate with the shaft) of these dual seal configurations. You should be aware that a stationary version is also available from any of the major seal companies. You should also consider:

• Use only the hydraulically balanced version of these seals to prevent the generation of excessive heat between the seal faces.
• Two way balance is always desirable in any dual seal application to allow you the option of using either a high or low pressure barrier fluid and to prevent the seal faces from opening if either the system or the barrier fluid pressure fluctuates.
• Be sure to select seal faces with good thermal conductivity.
• Try to locate any elastomers away from the seal faces if possible. Elastomers are very sensitive to heat.

seal type ssi-55mnc is specialized capsulated multi spring single cartridge seals it is complete assembled unit for pumps . this seals suitable for sludges, syrup, water, oil & chemicals used in moderate pressure design balanced mechanical pumps. These seals are independent of direction of rotation, pre assembled cartridge unit easy to install with different pcds pumps due to slots provided on gland plate and these seals can be offered in balanced configuration. As all parts are interchangeable, one can convert this series by changing only the dynamic ring and the secondary seal, this principle is ideal for stock rationalization, this seals are comfortable to use in wide range of application as below