Chesterton Kaplan Turbine Runner Blade Trunnion Split Seal

Chesterton Kaplan Turbine Runner Blade Trunnion Split Seal
High-Performance Split Lip Seal for Heavy Duty Rotary and Oscillating Applications

  

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​Proven in applications around the world, this split seal design greatly enhances reliability by keeping water and contaminants out of the hub and keeping lubricants in to avoid environmental contamination.

Chesterton’s Kaplan Turbine Runner Blade Trunnion Split Seal has a pin and lock design that keeps the turbine motion from pulling the split seal apart and also uses load pressure to join cut ends.

Unlike standard stack sets, these seals are designed with a positive, flared lip design which enables them to automatically adjust and compensate for radial cross sectional variances. This feature helps resist blade droop which so often causes reliability issues.

​View Chesterton's full array of solutions for Kaplan Turbines.​

Downtime is minimized: removal of the blade is not required.
Only two seals need to be installed (rather than a full stacked set)
The seal maintains load pressure during blade positioning.
Internal seal lubrication allows for rotary shaft movement with almost no frictional drag on the seal.
Blade and seal maintain positions for maximum sealing.
Made to order: geometry and dimensions of the seal is according to actual hardware arrangement and dimensions
Back-to-back configuration : Keeps contaminants out of hub; keeps oil in
Robust seal design: prevent excessive stretching or bunching, twisting of the seal rings during installation
Multiple sealing point on static side of the seal: in case of corroded seal cavity surface, the multiple sealing points can provide tighter sealing​
Material (designation)Size Range mm (inch)Temperature ˚C (˚F) Pressure bar (psi)Speed m/s (ft/min)
​AWC800 (EU)6 to 2,540 (1/4 to 100)-50 to 85 (-60 to 185)1,035 (15,000)​1 (200)
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Product Data Sheet: Kaplan Runner Blade Trunnion Split_Seal (English)https://chestertondocs.chesterton.com/RotatingPolymerSeals/EN36523_Kaplan_Runner_Blade_Trunnion_Split_Seal_PDS_EN.pdfProduct Data Sheet: Kaplan Runner Blade Trunnion Split_Seal (English)pdf

 

 

Case study: Rotating Equipment CS031 Kaplan Runner Blade Trunnion Split Seal (English)https://chestertondocs.chesterton.com/RotatingPolymerSeals/EN36560_CS031_RE_Kaplan_Blade_Runner.pdfCase study: Rotating Equipment CS031 Kaplan Runner Blade Trunnion Split Seal (English)pdf