mechanical face seal john crane in pumps

Model: 21
Place of Origin: Zhejiang,China (Mainland)
Standard or Nonstandard: Standard
Style: Mechanical Seal
Material: Others
Brand Name: WJ
Stationary Ring: ceramic/SIC/TC
Rotary Ring: carbon/SIC/TC
Secondary Seal: NBR/EPDM/VITON
Spring&Metal Parts: SUS304/SUS316

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Product Description

Payment & Shipping Terms Supply Capacity
Unit Price:0.3 USDProduction Capacity:100000 sets/month
Trade Term:FOBPacking:according to your...
Payment Terms:L/C, T/T, WUDelivery Date:30 days
Min. Order:1000 Set/Sets
Means of Transport:Ocean

mechanical face seal john crane in pumps
Weijin Mechanical Seals Factory is specialized in production all types of pump kit machinery sealing elements and sealing auxiliary materials,such as pump mechanical seals,auto cooling pump seals,industrial pump mechanical seals and ceramic face seal,etc.The products are widely applied to machinery,chemical industry,pharmacy,auto industry and food,etc. 


What are mechanical seals?

mechanical seal is a sealing device which forms a running seal between rotating and stationary parts. They were developed to overcome the disadvantages of compression packing. Leakage can be reduced to a level meeting environmental standards of government regulating agencies and maintenance costs can be lower. Advantages of mechanical seals over conventional packing are as follows: 

1. Zero or limited leakage of product (meet emission regulations.) 
2. Reduced friction and power loss. 
3. Elimination of shaft or sleeve wear. 
4. Reduced maintenance costs. 
5. Ability to seal higher pressures and more corrosive environments. 
6. The wide variety of designs allows use of mechanical seals in almost all pump applications.





Features of mechanical face seal john crane in pumps
1. Model: type 21
2. Stationary ring: ceramic/SIC/TC
3. Rotary ring: carbon/SIC/TC
4. Secondary seal: NBR/EPDM/VITON
5. Spring&Metal parts: steel

Operating Limits of mechanical face seal john crane in pumps
1. Pressure: ≤0.8Mpa
2. Speed: ≤10m/s
3. Temperature: -20ºC~150ºC
4. Medium: water, oil and other low corrosive medium

Pictures of mechanical face seal john crane in pumps
1. the drawing of mechanical face seal john crane in pumps

2. the size of mechanical face seal john crane in pumps

ModeldDD1L1L2
WJ21-1/2 "12.723.8825.47.9220.82
WJ21-5/8 "15.87526.731.7510.2922.43
WJ21-3/4 "19.0531.0934.9310.2922.43
WJ21-7/8 "22.22533.438.110.2924
WJ21-1 "25.443.1841.2811.125.6
WJ21-1 1/8 "28.57546.2844.4511.127.17
WJ21-1 1/4 "31.7549.447.6311.127.17
WJ21-1 3/8 "34.92552.5850.811.128.78
WJ21-1 1/2 "38.155.853.9811.128.78
WJ21-1 5/8 "41.27562.260.3312.735.13
WJ21-1 3/4 "44.456663.512.735.13
WJ21-1 7/8 "47.62566.666.6812.738.3
WJ21-2 "50.87369.8512.738.3
WJ21-2 1/8 "53.973.376.214.2743.05
WJ21-2 1/4 "57.178.4179.3814.2743.05
WJ21-2 3/8 "60.38282.5514.2746.25
WJ21-2 1/2 "63.584.8785.7314.2746.25
WJ21-2 5/8 "66.688.485.7315.949.4
WJ21-2 3/4 "69.892.5888.915.949.4
WJ21-2 7/8 "7394.8595.2515.952.57
WJ21-3 "76.2101.998.4315.952.57


mechanical face seal john crane in pumps

Category: mechanical face seal

Related Category: single mechanical seal  MG1 mechanical seal  mechanical shaft seals  double mechanical seal 


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