DN100 PN16 NBR Rubber Compensator for Marine Ballast System – Custom Flange & Low-Temp Diesel Resistant

SKU: KXT-DN100-EPDM-PN16-SS304

Model TypeKXT
Size (DN)DN100 (4 inch)
Pressure RatingPN16 (16bar)
MaterialNBR
Flange MaterialStainless Steel 304
Temperature Range-20°C to +80°C
Working MediumSea Water
Connection TypeFlange Connection
CertificateABS

Product Description & Specifications

Overview

The DN100 NBR Rubber Compensator is a premium, marine-grade flexible connector specifically custom-engineered for the rigorous demands of vessel ballast systems and auxiliary fuel lines. Utilizing a high-density NBR (Nitrile) bellows, this joint provides exceptional resistance to low-temperature diesel and seawater, preventing the swelling and degradation common in standard rubber materials.
To address the challenges of tight engine room layouts and legacy piping, this unit features precision-machined custom flanges, ensuring a perfect bolt-hole alignment during retrofits or new builds. Whether managing pump vibrations or compensating for hull-flexing stress, this NBR rubber compensator offers the durability and safety required for critical maritime operations.

Key Features

  • Fuel-Resistant NBR Bellows: Formulated with premium Nitrile (NBR) rubber to ensure superior chemical stability when exposed to low-temperature diesel, marine gas oil (MGO), and oily ballast water.
  • Custom Flange Engineering: Precision-drilled flanges tailored to specific vessel standards (JIS, ANSI, or DIN), eliminating installation stress and solving bolt-hole misalignment in confined spaces.
  • Low-Temperature Flexibility: Specially treated elastomer maintains its elastic properties and sealing integrity even in cold-water maritime environments or low-temp fuel transfer.
  • Superior Vibration Damping: Effectively isolates mechanical tremors from ballast pumps and engine auxiliaries, protecting sensitive onboard instrumentation and piping joints.
  • Robust Single-Sphere Geometry: Optimized single-sphere design provides high-pressure resistance (PN16) while allowing for significant axial, lateral, and angular movement compensation.
  • Marine-Grade Corrosion Protection: Flanges are available with high-quality coatings or specialized alloys to resist the harsh, salty atmosphere of the engine room and bilge area.

Applications

This rubber compensator is ideal for:

  • Vessel Ballast Water Systems: Ideal for connecting ballast pumps to main headers, managing the flow of seawater and sediment-laden intake water.
  • Auxiliary Diesel Fuel Lines: Reliable flexible connection for low-temperature diesel transfer and storage systems within the engine room.
  • Marine Bilge & Sludge Systems: Handling oily water and waste fluids where oil resistance is a critical safety requirement.
  • Shipboard Cooling Circuits: Used in seawater cooling loops for main engines and generators to absorb thermal expansion and mechanical shock.
  • Offshore FPSO & Drillship Utility Piping: Providing flexible, oil-resistant joints for various utility services in high-salinity offshore environments.

Technical Specifications

Parameter Value
Nominal DiameterDN100 (4 inch)
Working PressurePN16 (1.6 MPa)
Test Pressure2.4 MPa
Temperature Range-20°C to +80°C
Axial Extension10 mm
Axial Compression19 mm
Lateral Deflection13 mm
Angular Deflection15°

❓ Frequently Asked Questions (Applications)