WB3 series PTFE bellows mechanical seal, specially designed for big-head filter pumps. Adopts split ring and fully enclosed internal spring structure to avoid spring corrosion. Excellent resistance to strong acid, alkali, hydrofluoric acid and electroplating crystallized media.
Description
This WB3 is specially for big-head filter pumps, compatible with KuoBao, Sumpod, Sanchuanhong WB series anti-corrosion electroplating pumps. Structured with PTFE bellows assembly and silicon carbide rotary assembly. There is another all-metal non-bellows WB3 for chemical centrifugal pumps in the market. They share the same model name but are completely non-interchangeable in structure and size.
Working Condition
Pressure: ≤ 0.6 Mpa
Speed: ≤ 12 m/s
Temperature: -20°C ～ 100°C
Medium: Hydrochloric acid, sulfuric acid, hydrofluoric acid, electroplating solution, acid‑alkali wastewater, various organic solvents.
Material
Stationary Ring: SSIC / SIC / Alumina Ceramic / Carbon
Rotary Ring: SSIC / SIC / Alumina Ceramic / Carbon
Bellows Body: PTFE / PFA
Secondary Seal: VITON / EPDM / PTFE Encapsulated O-Ring
Spring & Metal Parts: SUS304 / SUS316L / HC
Features
- Integrated PTFE bellows compensation, automatically compensates shaft runout and installation deviation
- Fully enclosed internal spring structure, zero contact with medium to prevent corrosion and fracture
- Anti-crystallization and anti-blocking, suitable for high-crystal electroplating and chemical working conditions
- Split modular structure for low maintenance cost
- Full-range corrosion resistance, compatible with special corrosive media such as hydrofluoric acid