| Customization: | Available |
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| Structure: | Single End |
| Pressure: | Medium Pressure Mechanical Seals |
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Parameter Category
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Parameter Name
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Details
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General Information
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Product Name
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QT-Metal Bellow Seal 2609HTL
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Product Type
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Metal Bellow Mechanical Seal
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Application Scope
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Designed for high - temperature and high - pressure applications in chemical, petrochemical, and power generation industries
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Installation Type
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In - line installation, suitable for pumps, mixers, and reactors
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Size and Dimensions
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Seal Size Range (Nominal Pipe Size)
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1/2" - 4"
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Bellow Outer Diameter
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Min: 30 mm, Max: 120 mm
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Bellow Inner Diameter
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Min: 20 mm, Max: 110 mm
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Overall Height
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80 - 150 mm
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Face Diameter
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40 - 100 mm
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Performance Parameters
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Maximum Operating Pressure
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25 bar (363 psi)
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Minimum Operating Pressure
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0.1 bar (1.45 psi)
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Maximum Operating Temperature
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450°C (842°F)
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Minimum Operating Temperature
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- 50°C (- 58°F)
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Speed Rating
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Up to 3600 RPM
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Leakage Rate
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≤ 5 ml/h at standard operating conditions
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Material Specifications
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Bellow Material
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Nickel - based alloy (high strength and corrosion resistance)
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Face Material
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Tungsten carbide (static) and silicon carbide (rotating)
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Housing Material
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Stainless steel 316L
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Spring Material
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Inconel 718
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Gasket Material
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Graphite - based composite
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Mechanical Properties
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Tensile Strength of Bellow Material
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≥ 1200 MPa
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Yield Strength of Bellow Material
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≥ 1000 MPa
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Hardness of Face Material (Tungsten Carbide)
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1800 - 2200 HV
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Hardness of Face Material (Silicon Carbide)
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2500 - 3000 HV
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Compression Strength of Housing Material
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≥ 620 MPa
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Chemical Resistance
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Resistance to Acids
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Excellent resistance to sulfuric acid (up to 50% concentration), hydrochloric acid (up to 30% concentration)
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Resistance to Bases
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High resistance to sodium hydroxide (up to 40% concentration)
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Resistance to Organic Solvents
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Good resistance to most common organic solvents such as toluene, xylene
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Installation and Maintenance
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Recommended Alignment Tolerance
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Axial: ± 0.1 mm, Radial: ± 0.05 mm
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Recommended Lubrication
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For high - temperature applications, dry running is acceptable; for general applications, use appropriate high - temperature grease
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Maintenance Interval
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Recommended inspection every 6 months under normal operating conditions
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Replacement Criteria
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When leakage rate exceeds 20 ml/h, or visible damage to the bellow or sealing faces is detected
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Shanghai Queeny Mechanical Equipment Co.,Ltd.is an enterprise specializing in the R&D,manufacture and export of mechanical seal products,headquartered in Pudong New Area,Shanghai.Our products mainly include component seals,dry gas seals,metal bellows seals,mixer and agitator seals,single & dual cartridge seals,silicon carbide parts and tungsetn carbide parts,which can replace John Crane, Burg--mann, AES, Chesterton,Flowserve,Rotenand other similar products,they are widely used in water treatment,petroleum,chemical,food,medical and other industries.
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