FEATURES 1. QH1524 type mechanical seal complies with ISO3069 standard, DIN24960, GB/T6556 standards. 2. Single seal 3. Inside seal 4. balanced seal 5. Single spring 6. Parallel-circle spring drive 7. PTFE V-shaped ring as auxiliary sealing ring. 8. Fixed shaft rotation direction for parallel circle spring drive Advantages 1. Standard mechanical seal with ideal sealing 2. High pressure operating conditions are agreeable. 3. Excellent compensation performance, functioning equivalent, effective pressurization 4. Single Spring: greater performance, safer than multiple springs 5. Long product lifecycle. Energy saving, environment protection. 6. PTFE V-shaped ring for chemical pumps seals, oil pumps seals 7. Clean assembly. Installation faults are avoided, damage-free and cost-effective. 8. Individual adaptation is subject to pump's design and style. Customized products (OEMs) are available. Conditions and Operating range 1. Pressure: 0.1-2.0MPa 2. Temperature: -50° C~ 200° C 3. Shaft diameter: d0=30 to 100mm. d=35 to 105mm 4. Rotation speed: n≤3000r/min 5. Applicable medium: Clean water, waste, oil and weak corrosive fluid (medium) Materials Metal parts: Metal 316, 304, 2Cr13 parallel-circle Spring Friction Elements: Silicon carbide or hard alloy, Carbon graphite Auxiliary seal: Rubber O-ring or PTFE