FEATURES 1. QHM7N mechanical seal complies with ISO3069, DIN24960 and GB/T6556 standards. 2. Single seal 3. Unbalanced mechanical seal 4. Super-Sinus-spring 5. Independent rotation direction 6. PTFE secondary seals for high chemical resistance Advantages 1. Standard mechanical seal with ideal sealing 2. Bilateral Rotation: alternative rotation direction, Easy install and uninstall 3. Long Product Lifecycle. Energy saving and environment protection 4. Clean assembly 5. Installation faults were avoided, adjustable, damage-free and cost-effective. 6. Straightforward and easier specification for pre-assembled units. Time saving (reduced down-times) 9. Individual adaptation was subject to pump's design and style. Customized products(OEMs) are available. Conditions and Operating range 1. Pressure: 0.1-1.6MPa 2. Temperature: -30~ 200° C 3. Shaft diameter: 14 to 200 mm 4. Sliding velocity: vg≤20m/s 5. Applicable medium: Clean water, sewage water, oil, acid, alkali, salt, corrosive solution, etc. Material Metal parts: Metal 316, 304, 2Cr13, Waveform Spring Friction Elements: Silicon carbide or hard alloy, Carbon, TC Auxiliary seal: Rubber O-ring or PTFE Seat Types: G9, G16, G13, G6, And G4,