DN300 PN25 EPDM Rubber Compensator for Marine Chiller – Custom Square SS316 Flange & Control Rods

SKU: KXT-DN300-EPDM-PN25-SS316

Model TypeKXT-Single Sphere
Size(DN)DN300 (12 inch)
Pressure RatingPN25(25 bar)
Rubber MaterialEPDM Rubber
Flange MaterialStainless Steel 316L
Temperature Range-20°C to +120°C
Working MediumSea Water
Length245mm

Product Description & Specifications

Product Overview

The DN300 PN25 Marine Chiller Rubber Compensator is a high-specification flexible joint specifically custom-engineered for vessel refrigeration and HVAC systems. Featuring a unique non-standard square flange design, it allows for seamless integration into specialized chiller heat exchangers where standard circular flanges fail to fit.
Constructed with high-grade EPDM for thermal stability and premium SS316 stainless steel for ultimate seawater corrosion resistance, this unit is rated for 2.5 MPa (PN25). To ensure operational safety under high-pressure surges, it is equipped with heavy-duty control rods to manage pressure thrust in critical maritime environments.

Key Features

  • Custom Non-Standard Square Flanges: Precision-machined SS316 square flanges tailored to match specific marine chiller and evaporator interfaces.
  • High-Pressure Reliability (PN25): Reinforced bellows construction designed to withstand 25-bar working pressure, ideal for modern high-efficiency cooling circuits.
  • Ultimate Corrosion Resistance: SS316 stainless steel provides superior protection against pitting and crevice corrosion in high-salinity marine atmospheres.
  • Integrated Thrust Restraint: Heavy-duty control rods (tie rods) prevent over-extension and protect fragile chiller nozzles from hydraulic shock.
  • Thermal & Vibration Isolation: High-resilience EPDM effectively dampens compressor vibrations and accommodates thermal expansion in refrigerant loops.

Applications

  • Marine Central Air Conditioning (Chiller) Units: Flexible connection for seawater condensers and evaporators.
  • Vessel Provisions Refrigeration: Vibration isolation for large-scale onboard cold storage systems.
  • Offshore Platform HVAC Systems: Reliable high-pressure joints for salt-spray exposed cooling networks.
  • Industrial Process Cooling: Providing custom flanged solutions for compact heat exchanger modules.

Technical Specifications

Parameter Value
Nomimal DiameterDN300 (12 inch)
Wokring PressurePN25 (2.5MPa)
Test Pressure4MPa
Blast Pressure8MPa
Temperature Range-20°C to +120°C
Axial Extension16mm
Axial Compression25mm
Lateral Defection22mm
Angular Deflection10°
Flange StandardNon-Standard

❓ Frequently Asked Questions (Applications)