DN80 PN16 NBR Rubber Compensator for Hydropower Plant – SS304 Stainless Steel Flanges & Oil-Resistant Bellows

SKU: KXT-DN25-EPDM-PN16-SS304

Model TypeKXT
Size (DN)DN80 (3inch)
Pressure RatingPN16 (16 bar)
MaterialNBR Rubber
Flange MaterialStainless Steel 304
Temperature Range-20ยฐC to +80ยฐC
Working MediumTurbine Oil/Governor Hydraulic Oil
Connection TypeFlange Connection

Product Description & Specifications

Overview

Theย DN80 Hydropower Rubber Compensatorย is a high-performance flexible connector specifically developed for the rigorous environments ofย hydroelectric power stations. Featuring an oil-resistantย NBR (Nitrile)ย bellows and premiumย SS304 stainless steel flanges, this unit ensures long-term reliability in turbine lubrication systems and cooling water circuits where standard rubber joints would fail.
Designed to absorb high-frequency vibrations from turbine units and accommodate thermal expansion, thisย NBR rubber compensatorย prevents fatigue in piping joints. Its robust construction and corrosion-resistant materials make it the definitive choice for ensuring the operational safety of hydropower infrastructure.

Key Features

  • High-Grade NBR Bellows:ย Optimized forย turbine oil, hydraulic fluids, and lubricating oils, preventing rubber swelling and maintaining structural integrity in oil-contact applications.
  • Corrosion-Resistant SS304 Flanges:ย Provides excellent protection against the humid atmosphere typical of hydropower plant galleries and valve halls.
  • Precision Vibration Damping:ย Effectively isolates mechanical tremors from main turbine units and auxiliary pumps, protecting sensitive instrumentation.
  • Multi-Axial Movement Compensation:ย Accommodates axial, lateral, and angular displacements caused by pressure surges or structural settlement.
  • Durable Service Life:ย Engineered for the long maintenance cycles of power plants, reducing the total cost of ownership and downtime.

Applications

This rubber compensator is ideal for:

  • Turbine Lubrication Systems:ย Flexible connection for oil supply and return lines in hydroelectric generators.
  • Governor Hydraulic Systems:ย Managing high-pressure hydraulic fluid transport with oil-resistant reliability.
  • Plant Cooling Water Circuits:ย Vibration isolation for pumps and heat exchangers in the cooling system.
  • Auxiliary Powerhouse Piping: Reliable flexible joints for various water and oil utility lines within the powerhouse.

Technical Specifications

Parameter Value
Nominal DiameterDN80 (3 inch)
Working PressurePN16 (1.6 MPa)
Test Pressure2.4MPa
Temperature Range-20ยฐC to +80ยฐC
Axial Extension8mm
Axial Compression15mm
Lateral Deflection12mm
Angular Deflection15ยฐ
StandardGB/T 2506-2005

โ“ Frequently Asked Questions (Applications)