MULTI SPRING PTFT Wedge mechanical seals. john crane TYPE 9BT SEAL

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Basic Info.
  • Standard or Nonstandard: Standard 
  • Style: Mechanical Seal 
  • Material: Others 
  • Brand Name: FIT 
  • Specification: Equivalent to burgmann M78N 
  • Function: for Pump,Compressor 
  • Certificate: ISO9001 
  • Export Area: Africa,East Asia,Europe 
  • Model No.: FT9BT 
  • Place of Origin: Zhejiang  
  • Min.Order: 5 Set/Sets
  • Means of Transport: Ocean, Air, Land
Supply Capacity
  • Production Capacity: 400 Sets/Month
  • Packing:Carton
  • Delivery Date: 30 days



MULTI SPRING PTFT Wedge mechanical seals

 Operational Conditions: 

Material:


  Temperature: -40℃ to +250℃

Rotary Ring: Carbon/SiC/TC


 Pressure:≦2.5 MPa

Stationary Ring: 99% Ceramic / SiC /TC


Speed:≦15m/s

Secondary Seal:  VITON, NBR. EPDM


Stationary Seat: T21 O RING SEAT

Spring and Metal Parts: SUS304/SUS316


Application Scope:

The shaft seal system of rotating unit used in industries of petrol chemistry, electricity, metallurgy,

food, pharmacy etc..It is apt for  medium viscosity media with or without small amount of

granules in low and medium temperature, like light hydrocarbon, light oil, some organic material, water, etc.

The main products here we serve well are for the industries of oil field, oil refining, mining, chemical plants, water pumps, pharmaceutical factories, refrigeration, power stations, and shipbuilding.


 /Sized0dD3D2D1L1L2L6
/Inch)







1.000 25.40 22.20 36.50 22.90 38.10 33.32 10.30 8.70 
1.125 28.50 25.40 39.67 26.10 41.28 34.93 11.10 8.70 
1.250 31.70 28.50 42.85 29.30 44.45 34.93 11.10 8.70 
1.375 34.90 28.50 49.20 29.30 44.45 42.85 11.10 8.70 
1.500 38.10 31.70 49.20 32.40 47.63 36.50 11.10 8.70 
1.625 41.20 34.90 57.15 35.60 50.80 40.46 11.10 11.10 
1.750 44.40 38.10 58.72 38.80 53.96 44.45 11.10 11.10 
1.875 47.60 41.20 63.50 42.40 60.33 44.45 12.70 11.10 
2.000 50.80 44.40 66.68 45.50 63.50 44.45 12.70 11.10 
2.125 53.90 47.60 71.42 48.70 66.68 52.37 12.70 12.70 
2.250 57.10 50.80 72.21 51.90 69.85 44.45 12.70 12.70 
2.375 60.30 53.90 76.20 55.00 76.20 52.37 14.30 12.70 
2.500 63.50 57.10 79.38 58.20 79.38 44.45 14.30 12.70 
2.625 66.60 60.30 82.55 61.40 82.55 52.37 14.30 12.70 
2.750 69.80 63.50 85.73 64.60 85.73 52.37 14.30 12.70 
2.875 73.00 66.60 88.90 67.70 85.73 52.37 15.90 12.70 
3.000 76.20 69.80 92.08 70.90 88.90 52.37 15.90 12.70 
3.125 79.30 73.00 95.25 74.10 95.25 52.37 15.90 14.30 
3.250 82.50 76.20 98.43 77.30 98.43 52.37 15.90 14.30 
3.375 85.70 79.30 101.60 80.50 101.60 52.37 19.80 14.30 
3.500 88.90 82.50 104.78 83.60 104.78 52.37 19.80 14.30 
3.625 92.00 85.70 107.95 86.80 107.95 52.37 19.80 14.30 
3.750 95.20 88.90 111.13 90.00 111.13 52.37 19.80 14.30 
3.875 98.40 92.00 114.30 93.10 114.30 52.37 19.80 14.30 
4.000 101.60 95.20 117.48 96.30 117.48 52.37 19.80 14.30 



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Ms. Suzy (sales)
Tel: 86-574-87155562
Mobile: 13566598487
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Contact Method
Ningbo FIT Pump Seals Factory
Building A6 Fengxiang Indcustial Zone Yinzhou District., Ningbo, Zhejiang, China (Mainland) / 315000
Fax: 86-574-87155561
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