Product Name: 58U, AKA 59B, 59U Mechanical Seals for Chemical Centrifugal Pumps, Vacuum Pumps, Compressors and Reaction Kettles Model NO.: 58B, AKA 59B, 59U Balance: Unbalanced Type: HU3 Standard: Standard Performance: Wear Temperature: High Temperature Mechanical Seal Speed: High-Speed Mechanical Seal Pressure: Medium Pressure Mechanical Seals Structure: Single End Trademark: Yalan Transport Package: Carton Specification: Inner Diameter: 20 mm to 100 mm Origin: China HS Code: 8484200090 Product Description Basic FeaturesStructure: Single EndPressure: High Pressure Mechanical SealsSpeed: General Speed Mechanical SealTemperature: High Temperature Mechanical SealPerformance: WearStandard: DIN24960, ISO3069, GB6556, EN12756Model NO.: 58U, AKA 59B, 59UBalance: Unbalanced (58U and 59U) and Balanced (58B and 59B)Specification: Inner Diameter: 20 mm to 100 mmProduct Detailed DescriptionYL 58U, AKA 58B, 59B, 59U Mechanical Seals for Chemical Centrifugal Pumps, Vacuum Pumps, Compressors and Reaction KettlesStructural Features:single end, multiple springs, unbalanced (58U and 59U) and balanced (58B and 59B), independent direction of rotation, drive sleeve transmission. This component has a compact structure with small axial dimension and equal force on the sealing surface. This component can work as an alternative to similar products such as John Crane 58B, 58U, 59B, and 59U.Industrial Standards:DIN24960, ISO3069, GB6556, EN12756Scopes of Application:mainly used in chemical centrifugal pumps, vacuum pumps, compressors and reaction kettles for industries such as chemical processing, refrigeration, oil refining, petrochemical engineering, sewage treatment, electricity generation, papermaking, and pharmacy.Operation Parameters:Pressure: 4.0 MPa or lessTemperature: - 40 ~ 200 ºCLinear Speed: 25 m/s or lessMaterials:Rotary Ring: Carbon/SiC/TCStationary Ring: Al2O3/SiC/TCElastomers: NBR/EPDM/Viton/PTFE/FFKMSprings: SS304/SS316/HC-276metal Parts: 410S/SS304/SS316/SS316L/HastelloyMediums:oil, water, amorphism acid. alkali, salt, and organic solvents.Customization:Changes of materials for getting other operating parameters are possible. Contact us with your requirements.