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Mecnanical Seal Type First 4 Sme, Customized Chemical Pump Mechanical Seals1
Sealing Gaskets, Customized Chemical Pump Mechanical Seals, Seal, Gasket
Shanghai Queeny Mechanical Equipment Co., Ltd.
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Product Description ParameterDescriptionDataTypeDesign classification of the mechanical sealSingle - spring, unbalancedSize Range (mm)Outer diameter range of the seal15 - 150Inner Diameter (mm)Minimum and maximum inner diameter for installation10 - 145Seal Face MaterialMaterials used for the sealing facesTungsten Carbide (WC) and Carbon GraphiteSeal Face Flatness (μm)Precision level of the seal face flatness≤ 0.5Seal Face Roughness (Ra, μm)Surface roughness of the seal face0.05 - 0.2Spring MaterialMaterial of the compression springStainless Steel 316Spring Rate (N/mm)Force exerted per unit of spring compression8 - 12Spring Compression (mm)Recommended compression distance of the spring2 - 5Operating Pressure (MPa)Maximum and minimum pressure the seal can withstand0 - 3.5Operating Temperature (°C)Temperature range for normal operation- 40 - 200Shaft Speed (rpm)Maximum rotational speed of the shaft≤ 3000Leakage Rate (ml/h)Permissible leakage amount under normal conditions≤ 5Axial Load (N)Force applied along the axis during operation50 - 200Radial Load (N)Force applied perpendicular to the axis during operation≤ 80Fluid Media CompatibilityTypes of fluids the seal can be used withWater, Oil, Chemicals (excluding strong oxidizing agents)Elastomer MaterialMaterial of the elastomeric componentsHydrogenated Nitrile Butadiene Rubber (HNBR)Elastomer Hardness (Shore A)Hardness level of the elastomer70 - 85Assembly Tolerance (mm)Allowable deviation during installation± 0.1Shaft Runout (mm)Maximum allowable shaft runout≤ 0.05Housing Bore Runout (mm)Maximum allowable housing bore runout≤ 0.08Installation Torque (N·m)Recommended torque for installation15 - 30Service Life (Hours)Expected lifespan under normal operating conditions8000 - 12000Maintenance Interval (Hours)Recommended time interval for inspection and maintenance2000 - 3000Storage Temperature (°C)Temperature range for storage- 20 - 40Storage Humidity (%)Humidity range for storage≤ 70Metal parts:316 Stainless Steel as standard, other materials also availabO-rings:vit? (Flurocarbon) or Ethylene Propylene (EPR) asstandard. Aflas?, Kalrez? and other elastomers available to orderRotary face:Carbon, Silicon Carbide or Tungsten Carbide as standard. Antimony Carbon available on request.Temperature:-30oC to 260oC (-22oF to 500oF) dependent upon specified elastomer and sy711mmstem configurationPressure limits: HG Vacuum to 30 Bar(-28" HG - 440 PSI)External clampingEasily set to the correct working length, enabling pump efficiency adjustments to be made without dismantling the pump.Positive drive lugsDrive forces are evenly distributed around the rotary face to reduce stress.Springs out of fluidThe Alloy 276 springs are not in the pumped fluid where they could corrode or clog, so remain effective for the whole of the seal life.BalancedHydraulic balance is achieved within the seal design and does not require a stepped shaft. Face loading is reduced to give cooler running and longer seal life.Visual examinationVisible spring gap allows monitoring of face wear.Anti clogThe dynamic o-ring moves onto a clean area as seal faces wear. Components remain free for longer seal life.Secured rotary faceShrink fitting improves durability and face retention under extreme operating conditionsNon metallic wetted partsNo metal parts in contact with pumped media, therefore able to operate in corrosive applications.
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