| Customization: | Available |
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| Structure: | Single End |
| Pressure: | Medium Pressure Mechanical Seals |
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Parameter
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Description
|
|
Model
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QT-MG12
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Seal Type
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Single-Ended Unbalanced Mechanical Seal
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Nominal Shaft Diameter
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12 mm
|
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Seal Face Material
|
Tungsten Carbide (Stationary) / Carbon Graphite (Rotating)
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Seal Face Flatness
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≤0.00003 mm
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Seal Face Roughness (Ra)
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Stationary: ≤0.2 μm; Rotating: ≤0.4 μm
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Seal Face Hardness
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Tungsten Carbide: ≥1300 HV; Carbon Graphite: 80 - 120 Shore D
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O-Ring Material
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Fluoroelastomer (FKM)
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O-Ring Hardness (Shore A)
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70 ± 5
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O-Ring Compression Set (%)
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≤15 after 70 hours at 200°C
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Spring Material
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Stainless Steel 316
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Spring Rate
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2.5 N/mm
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Spring Load
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15 - 25 N
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Maximum Operating Pressure
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1.6 MPa
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Minimum Operating Pressure
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0.05 MPa
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Maximum Operating Temperature
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200°C
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Minimum Operating Temperature
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-20°C
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Maximum Rotational Speed
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3000 rpm
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Minimum Rotational Speed
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100 rpm
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Shaft Runout Tolerance
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≤0.05 mm
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Axial Endplay Tolerance
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≤0.1 mm
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Shaft Surface Roughness (Ra)
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0.8 - 1.6 μm
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Housing Bore Surface Roughness (Ra)
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1.6 - 3.2 μm
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Shaft Straightness Tolerance
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≤0.02 mm/m
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Housing Bore Straightness Tolerance
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≤0.03 mm/m
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Seal Chamber Diameter Tolerance
|
H8
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Shaft Diameter Tolerance
|
h7
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Axial Installation Length
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32 mm
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Radial Clearance
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0.5 - 1.0 mm
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Leakage Rate
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≤5 ml/h at 1 MPa pressure
|
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Chemical Compatibility
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Resistant to most acids, alkalis, and organic solvents (excluding highly oxidizing agents)
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Media Compatibility
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Suitable for water-based fluids, oils, and non-corrosive chemicals
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Assembly Torque
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8 - 12 N·m
|
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Disassembly Torque
|
10 - 15 N·m
|
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Storage Temperature Range
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-30°C to 30°C
|
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Shelf Life
|
2 years in original packaging
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Weight
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0.08 kg
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