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PTFE骨架油封

PTFE油封材质选用

  • 类型
    Type

  • 运转条件
    Rotary Condition

  • 主要性能与应用
    Main Performance and Application

  • A型

  • 速度Speed:≤30m/s
    压力Pressure:≤5bar

  • 全铁氟龙单密封唇,摩擦阻力小, 适于风车、泵、压缩机、齿轮箱、引擎曲轴箱等各种应用。
    Single lip teflon seal,low friction, suitable for windmill,pump,compressor,gearbox,engine bearing and other applications.

  • B型

  • 速度Speed:≤18m/s
    压力Pressure:≤30bar

  • 全铁氟龙双密封唇,适用压力高达30bar, 适用于油压马达,泵,液压油压元件等应用。
    Double lip teflon seal,use in high pressure 30bar,application in hydraulic motor,pump,hydraulic oil presses.

  • C型

  • 速度Speed:≤8m/s
    压力Pressure:≤3.5bar

  • 单密封唇弹力加强型,适用于 转轴圆度不佳或偏摆较大的旋转密封。
    Flexibility reinforced single lip,suitable for poor roundness and largely swung rotary shaft sealing.

  • D型

  • 速度Speed:≤8m/s
    压力Pressure:≤3.5bar

  • 与C型相同,但增加圆周密封,可应用于多粉尘环境。
    Same as type C,but added circumferential seal,can be used in heavy dust environment.

  • E型

  • 速度Speed:≤30m/s
    压力Pressure:≤5bar

  • 与A型相同,但增加圆周密封,可应用于多粉尘环境。
    Same as A,but added circumferential seal,can be used in heavy dust environment.

  • F型

  • 速度Speed:≤18m/s
    压力Pressure:≤30bar

  • 与B型相同,但增加圆周密封,可应用于多粉尘环境。
    Same as type B,but added circumferential seal,can be used in heavy dust environment.

  • I型

  • 速度Speed:≤20m/s
    压力Pressure:≤5bar

  • 密封唇压力较高,适用于气体及磨耗性流体。
    Sealing lip can resist high pressure,apply in gas and abradability fluid.

  • J型

  • 速度Speed:≤30m/s
    压力Pressure:≤1.5bar

  • 密封唇压力较低,主要应用于轴承的密封。
    Low pressure-resistant,mainly apply in bearing sealing.

  • H型

  • 速度Speed:≤8m/s
    压力Pressure:≤20bar

  • 单密封唇V形弹簧加强,适用于转轴圆度不佳或偏摆较大的密封。
    Single lip with V spring reinforced,suitable for poor roundness and largely swung rotary shaft sealing.

全PTFE油封的型式

  • 编号No.

  • 密封件材质Material

  • 应用特性Application Feature

  • 1

  • 纯铁氟龙
    Virgin PTFE

  • 适用于食品,制药等制程 Suitable for foodstuff and pharmaceutical process.

  • 2

  • 玻纤填料铁氟龙
    PTFE filled glass fiber

  • 改良的耐压,耐磨性,极佳抗化学性;较优的热导性 Improved pressure-resistant, wear resistance, excellent chemical resistance and optimum thermal conductivity.

  • 3

  • 青铜填料铁氟龙
    PTFE filled bronze

  • 耐高压,耐磨耗,热传导性佳,特别适用于190℃以上的高温场合 High pressure resistance, good thermal conductivity, abrasion resistance, especially for applications in high temperature above 190℃.

  • 4

  • 石墨填料铁氟龙
    PTFE filled graphite

  • 适用于短期无润滑或长期润滑不良的旋转应用 Suitable for Short-term without lubrication or long-term bad lubrication rotary applications.

  • 5

  • 碳纤填料铁氟龙
    PTFE filled carbon fiber

  • 极佳之耐磨,耐压性,良好热导性,低透气性 Excellent wear resistance and pressure resistance, good thermal conductivity,low-permeability

钢环及静止密封垫材质选用

  • 编号No.

  • 钢环材质Material

  • 应用特性

  • 1

  • 碳钢
    Carton steel

  • 标准材质,一般环境下润滑油或润滑脂之应用 Standard material, suitable for general environment of lubricating oil or grease.

  • 2

  • 304不锈钢
    304 stainless steel

  • 腐蚀环境下润滑油或润滑脂之应用 Suitable for lubricating oil or grease under corrosive environment.

  • 3

  • 316不锈钢
    316 stainless steel

  • 腐蚀性流体之密封
    Corrosive fluid seal

  • 编号No.

  • 密封垫材质Material

  • 应用特性Application Feature

  • 1

  • NBR

  • 标准材质,一般环境下润滑油或润滑脂之应用,适用温度-40~100℃ Standard material, suitable for general environment of lubricating oil or grease, applicable temperature - 40 ~ 100℃

  • 2

  • FKM(Viton)

  • 高温下润滑油或润滑脂之应用,适用温度-20℃~200℃ Suitable for lubricating oil or grease under high temperature, applicable tempreature - 20 ℃ ~ 200 ℃

PTFE油封材质选用

为充分发挥PTFE油封的优异性能与耐用性,并避免安装不当导致密封件受损,轴的密封面与密封件沟槽必须有适当的加工。安装时,聚四氟乙烯密封唇必须向压力侧。
To maximize the performance of PTFE seal excellent and durability, and avoid installation.Improper damaged seals, shaft sealing surface and groove are needed.Appropriate processing. When installed, PTFE sealing lip must face the pressure side.
20211223100201_4249.jpg轴Shaft:
■轴表面硬度≧40HRC(润滑不良或高速运转的场合≧58HRC)
Shaft surface hardness≧40HRC(poor lubrication or high speed occasion≧58HRC)
■表面研磨并抛光以去除锐角,表面粗度Ra=0.2~0.5um,真空应用Ra≦0.2um
Grinding and polishing the surface to remove the sharp angle, the surface roughness Ra=0.2~0.5 um,vacuum applications Ra≦0.2um
■轴径尺寸公差h11 Shaft dimensional tolerances h11
■端面导角15° - 30° Face conduction angle 15° to 30°
沟槽Groove:
■表面粗度Ra≦0.8umSurface roughness Ra≦0.8um
■沟槽尺寸公差H8Groove dimensional tolerances H8
■端面导角5° - 15° Face conduction angle 5° to 15°

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