FEATURES 1. QH609 (imperial) type is metallic bellows mechanical seal. 2. Balanced seal 3. Single seal 4. Bellows rotating seal Advantages 1. Standard mechanical seals for ideal sealing 2. High pressure operating conditions are agreeable. 3. Axial loaded O-ring dynamically, easy and smooth, damage free 4. Clean assembly 5. Long product lifecycle. Energy saving, environment protection 6. Installation faults are avoided, damage-free and cost-effective. 7. Excellent compensation performance functioning equivalent, effective pressurization 8. Straightforward and easier specification for pre-assembled unit. Time saving (reduced down-times) 9. Individual adaptation was subject to pump's design and style. Customized products (OEMs) are available. 10. Wide applicable to program about conversion and retrofit. Conditions and Operating range 1. Pressure: 0~2MPa 2. Temperature: -75° C~425° C 3. Shaft diameter: A=25.4 to 101.6 mm 4. Linear Velocity: vg ≤25m/s 5. Applicable medium: high temperature medium featuring viscosity and/or thermosetting property Materials AM350 or Inconel718 wave plate (bellows) Flexible graphite as auxiliary seal ring