Preformed in triangle shape for easy installation and can be fitted into any size or any shape of stuffing box due to self expansion performance by built-in air bubbles. Performance: Temperature -200 to 300oC, Pressure 1,400 kg/cm2, Fluid Oxalic acid, Alkali, Alcohol, Organic solvent. Applications: Chemical pumps, Turbine pumps, Vertical pumps, Plunger pumps, Centrifugal pumps, Reciprocating pumps, Gate valves, Globe valves, Air valves, Solenoid valves