Customization: | Available |
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Structure: | Single End |
Pressure: | High Pressure Mechanical Seals |
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Parameter
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Description
|
Model
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QT GLF-E
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Seal Type
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Single-Ended, Unbalanced, Spring-Pusher Seal
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Application Range
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Suitable for pumps, reactors, and mixers in chemical, petrochemical, and pharmaceutical industries
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Pressure Rating
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Maximum Operating Pressure: 1.6 MPa (232 psi)Minimum Operating Pressure: 0.05 MPa (7.3 psi)
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Temperature Range
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-40°C (-40°F) to 200°C (392°F)
|
Speed Limit
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Maximum Rotational Speed: 3000 RPM
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Shaft Diameter Range
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20 mm to 80 mm (0.79 in to 3.15 in)
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Seal Face Material
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Carbon Graphite (Stationary Face)Tungsten Carbide (Rotating Face)
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Body Material
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Stainless Steel 316
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Spring Material
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Inconel 718
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O-Ring Material
|
Ethylene Propylene Diene Monomer (EPDM)
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Lubrication
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Self-lubricating through the sealed medium
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Leakage Rate
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≤5 ml/h at rated operating conditions
|
Axial Length
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50 mm (1.97 in)
|
Radial Clearance
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0.2 - 0.5 mm (0.008 - 0.02 in)
|
Installation Torque
|
20 - 30 N·m (14.8 - 22.1 lb·ft)
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Vibration Limit
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≤5 mm/s at rated speed
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Chemical Compatibility
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Resistant to a wide range of acids, alkalis, and organic solvents
|
Maintenance Interval
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Recommended inspection every 6 months
|
Weight
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Approximately 1.2 kg (2.65 lbs) for a 50 mm shaft size
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Storage Conditions
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Store in a dry, clean environment at temperatures between 0°C (32°F) and 40°C (104°F)
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Mounting Orientation
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Axial mounting, suitable for horizontal and vertical shafts
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Seal Design Pressure Differential
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Maximum: 1.5 MPa (218 psi)
|
Hardness of Seal Faces
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Carbon Graphite: 50 - 80 Shore DTungsten Carbide: 85 - 92 Shore D
|
Thermal Conductivity of Seal Faces
|
Carbon Graphite: 15 - 25 W/(m·K)Tungsten Carbide: 80 - 120 W/(m·K)
|
Compressive Strength of Seal Faces
|
Carbon Graphite: 100 - 150 MPa (14500 - 21750 psi)Tungsten Carbide: 1500 - 2000 MPa (217500 - 290000 psi)
|
Tensile Strength of Body Material
|
Stainless Steel 316: ≥515 MPa (74700 psi)
|
Yield Strength of Spring Material
|
Inconel 718: ≥1034 MPa (150000 psi)
|
Elongation at Break of O-Ring Material
|
EPDM: ≥300%
|
Maximum Allowable Misalignment
|
Axial: ±0.5 mm (0.02 in)Radial: ±0.2 mm (0.008 in)
|
Seal Face Flatness
|
≤0.0005 mm (0.00002 in)
|
Surface Roughness of Seal Faces
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Carbon Graphite: Ra 0.2 - 0.4 μmTungsten Carbide: Ra 0.1 - 0.2 μm
|
Maximum Allowable Axial Load
|
500 N (112.5 lbf)
|
Minimum Fluid Film Thickness
|
0.002 - 0.005 mm (0.00008 - 0.0002 in)
|
Number of Springs
|
8
|
Spring Rate
|
15 - 25 N/mm (85.7 - 142.9 lbf/in)
|
Spring Compression
|
8 - 12 mm (0.31 - 0.47 in)
|
Seal Chamber Diameter
|
25 - 85 mm (0.98 - 3.35 in)
|
Seal Chamber Depth
|
60 - 100 mm (2.36 - 3.94 in)
|
Flange Bolt Circle Diameter
|
80 - 150 mm (3.15 - 5.91 in)
|
Flange Bolt Size
|
M6 - M10
|
Flange Bolt Torque
|
10 - 20 N·m (7.4 - 14.8 lb·ft)
|
Seal Face Contact Width
|
3 - 5 mm (0.12 - 0.2 in)
|
Seal Face Runout
|
≤0.03 mm (0.0012 in)
|
Dynamic Friction Coefficient
|
0.1 - 0.3
|
Static Friction Coefficient
|
0.2 - 0.4
|
Maximum Pressure Increase Rate
|
0.5 MPa/min (73 psi/min)
|
Maximum Temperature Increase Rate
|
10°C/min (18°F/min)
|
Corrosion Resistance Grade
|
Excellent resistance to general corrosion
|
Impact Resistance of Seal Faces
|
Carbon Graphite: 1 - 2 J/cm² (0.07 - 0.14 ft·lbf/in²)Tungsten Carbide: 5 - 10 J/cm² (0.35 - 0.71 ft·lbf/in²)
|
Fatigue Life of Spring Material
|
≥1 million cycles under rated load
|
UV Resistance of O-Ring Material
|
Good resistance to UV degradation
|
Electrical Conductivity of Seal Faces
|
Carbon Graphite: 1000 - 2000 S/mTungsten Carbide: 10000 - 20000 S/m
|
Magnetic Permeability of Body Material
|
Stainless Steel 316: ≤1.02
|
Specific Gravity of Seal Faces
|
Carbon Graphite: 1.8 - 2.2Tungsten Carbide: 14 - 15
|
Specific Gravity of Body Material
|
Stainless Steel 316: 7.93
|
Specific Gravity of Spring Material
|
Inconel 718: 8.24
|
Specific Gravity of O-Ring Material
|
EPDM: 1.1 - 1.2
|
Moisture Absorption of Seal Faces
|
Carbon Graphite: ≤0.5%Tungsten Carbide: ≤0.1%
|
Oxidation Resistance of Spring Material
|
Good resistance to oxidation at elevated temperatures
|
Chemical Resistance of O-Ring Material
|
Resistant to water, steam, and many polar solvents
|