Mechanical Seal

1. Unbalanced Mechanical seal- Single Coil Conical  Spring









These Types of seals are not independent from direction of shaft rotation. Their dimensions are in accordance with DIN 24960, NFE 29991 standards.
This type of seal is used in chemical, petrochemical, iron and steel industries.

  Operating Limits :
       Shaft Dia. : 10 to 100mm
       Pressure : up to 10 Bars
       Temp. : -20 to 180°C
       Speed : up to 25 m/s


2. Unbalanced Single spring Mechanical seal-Sinuous(Wave) spring












These seals are independent from direction of shaft rotation and their dimensions are in accordance with DIN 24960 standard.
These types of seals are used in paper and petrochemical industries.
The temperature range is -50 up to 220 c. 


Operating Limits :
Shaft Size =14to100mm
Pressure: 1.50Mpa
Temperature: -40 to 200 ℃

3. Balanced Mechanical seal- Single Coil Spring

These seals are not independent from direction of shaft rotation and their dimensions are in accordance with DIN 24960 and NFE 29991 standards.

Operating Limits :
Shaft Dia. : 10 to 150mm
Pressure : up to 30 Bars
Temp. : -50 to 180°C

4. Balanced Single Mechanical Seal-Sinuous(wave) spring

These type of seals are independent from direction of shaft rotation and their dimensions are in accordance with DIN 24960 standards.
Temperature range is -20 to 220 c 

5. Unbalanced Multi Spring Mechanical Seal

These seals are independent from direction of shaft rotation and their dimensions are in accordance with DIN 24960, NFE 29991 standard. 

Operating Limits :
Shaft Dia. : 14 to 150mm
Pressure : up to 10 Bars
Temp. : -50 to 280°C

6. Welded metal Bellows Seal

Applications :
Generally used for handling highly corrosive chemicals, high Temperature applications, petroleum refinery etc.
Material :
Seal Faces  : carbon/TC Vs Sic./TC
Secondary Seals  : Viton/PTFE/GFT 
Metal Components : SS-316 

Bellow Material :
• Titanium
• AM350
• Alloy C 276
• Alloy 20
• Inconel 625
Operating Limits :
Shaft Dia. : 19 to 100mm
Pressure : up to 15 Bars
Temp. : -50 to 350°C
Speed : up to 25 m/s

7. Elastomer Bellows Seals

These seals are of unbalanced type and independent from direction of shaft rotation.
Their dimensions are in accordance with DIN 24960 standard. 

Operating Limits :
Shaft Dia. : 10 to 100mm
Pressure : up to 10 Bars
Temp. : -20 to 150°C

8. Teflon Bellows Seals

These seals are of unbalanced type and independent from direction of shaft rotation. Used in acids, alkalis & extremely corrosive services
Dimensions are according to DIN 24960 standard. 

Operating Limits :
Shaft Dia. : 18 to 100mm
Pressure : up to 5 Bars
Temp. : -20 to 80°C
Speed : up to 25 m/s

9. Metal Bellows Gas-Lubricated Dual Cartridge Seal

 These types of seals are independent from direction of shaft rotation and their dimensions are in accordance with DIN 24960 standard.

Temperature -40 C to 260 C/-40 F to 500 F
(depending on elastomer used)
Seal Chamber Pressure  Up to 18 bar g/270 psig
(Consult Pressure Rating Limit)
Speed 1450 rpm minimum
3600 rpm maximum