FEATURES 1. QH119B type mechanical seal complies with ISO3069 standard, DIN24960, GB/T6556 standards 2. Single seal 3. Inside seal 4. balanced seal 5. Multiple springs rotating 6. Pin drive Advantages 1. Normal mechanical seal with ideal sealing 2. Axial loaded O-ring dynamically, easy and smooth, damage free 3. Flexible pin drive, multiple springs rotating 4. Excellent compensation functioning equivalent, effective pressurization 5. Long Product Lifecycle, Energy saving and environment protection 6. Clean assembly. Installation faults were avoided, damage-free and cost-effective. 7. Straightforward and easier specification for pre-assembled units. Time saving (reduced down-times) 8. Sliding secondary seal, DOES NOT meet with fluid. 9. Individual adaptation was subject to pump's design and style. Customized products (OEMs) are available. 10. Wide applicable to programs about conversion and retrofit Conditions and Operating range 1. Pressure: 0~2.5MPa 2. Temperature: -20° C~ 120° C 3. Shaft diameter: d0=28mm to 68mm, d=33 to 73mm 4. Rotation speed: n≤3000r/min 5. Applicable medium: Water, waste, oil and lownormal corrosive medium Materials Metal parts: Metal 316, 304, 2Cr13 multiple Springs Friction Elements: Silicon carbide or hard alloy, graphite Auxiliary seal: Rubber O-ring or PTFE