product name:TB21 Elastomer bellow Mechanical seals for blower pump
for blower pump, diving pump,circulating pump, replace the mechanical seal of John Crane 21

Stationary Ring:Ceramic(Alumina),Silicon Carbide Reaction Bonded,Silicon Carbide   Sintered Pressureless,Ni-binder Tungsten Carbide                                                                                                                                            
Rotary Ring:Resin Impregnated Carbon Graphite(Furan),Antimony Impreg. Carbon Graphite,Silicon Carbide Sintered Pressureless,Silicon Carbide Reaction Bonded                                                                                                                                                
Secondary Seal:Nitrile(NBR),Ethylene Propylene(EPDM),Fluorocarbon Rubber(Viton)                                                                                       
Spring and Metal Parts:Stainless Steel,Stainless Steel                                                                                                                               

Seat Type:                                                                                                                                                             Standard:TBT11                                                                                                                                                                  Alternative:TBCT20,TBT21                                                                                                                                               Applications:Clean Water,Sewage Water,Oil and other moderately corrosive fluids.

product:TB21 Elastomer bellow Mechanical seals for blower pump


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