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

material of TB21 mechanical seal
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                          

                                                                                                                                            
product:TB21 Mechanical seals
                                                                                                     
Seat Type:                                                                                                                                                             Standard:TBT11                                                                                                                                                                  Alternative:TBCT20,TBT21                                                                                                                                               Applications:Clean Water,Sewage Water,Oil and other moderately corrosive fluids.