Recommended applications
Centrifugal pumps, screw pumps and other special pumps. Toxic, harmful, flammable medium. 
Product features
● API 682 Category 2 and 3, Type B, Arrangement 3 seal
● Face to face, metal bellows, balanced, cartridge seal
● Various types of pump rings available
● Absence of dynamic O-Ring eleminates seal face hang-up
● Relative higher pressure fluid as barrier fluid between inboard and outboard seals
● Zero leakage, zero emissons, no environmental pollution
● Cartridge designs to allow easy installation and maintenace
● Modular designs allowing easy part replacement, low maintenance cost
Operating limits
● Pressure: 0~25bar
● Temperature: -40~176℃（260℃）
● Sliding velocity: ≤25m/s
● Shaft diameter: 20~110mm