1. Operational Conditions:
Temperature: -20℃ to +120℃
Pressure: ≤2.5MPa
Speed: ≤15m/s
2. Materials: 
Stationary Ring: Ceramic (Alumina), Silicon Carbide Reaction Bonded, Silicon
Carbide Sintered Pressureless, Ni-binder Tungsten Carbide, Co-binder Tungsten Carbide
Rotary Ring: Resin Impregnated Carbon Graphite (Furan), Antimony Impreg, Carbon Graphite, Silicon Carbide Sintered Pressureless, Silicon Carbide Reaction Bonded, Co-binder Tungsten Carbide, Ni-binder Tungsten Carbide
Secondary Seal: Nitrile (NBR), Ethylene Propylene (EPDM), Fluorocarbon Rubber (Viton) 
Spring and Metal Parts: Stainless Steel, Stainless Steel
3. Seat Type: 
Alternative: TBCT20, TBT20, TBT21
4. Applications: Clean Water, Sewage Water, Oil and other moderately corrosive fluids