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Fractal Design Kelvin S36 Hydro Performance Cooler

  • Fantastic cooling performance
  • Made with enthusiast-grade components
  • Radiator Measurements 30 x 124 x 397mm
  • Expandable system

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QuickFind: 668721

Mfr part code: FD-WCU-KELVIN-S36-BK

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    Fractal Design Kelvin S36 Hydro Performance Cooler Product Description

    Simple to install, silent operation, powerful performance and easy expandability define the Kelvin Series.  The silent high-performance ceramic pump is strong enough to support considerable expansion, should you decide to include GPU blocks and/or additional radiators in the same loop. The Kelvin Series water cooling systems are constructed from enthusiast class components. Both the CPU block and the radiator are made from pure copper, for maximum performance and an increased product life span with zero maintenance required.

    All modern CPU sockets are supported by the versatile, easy-to-use mounting kit.

    Key features

    • Fantastic cooling performance
    • The strong pump and the full-copper construction places the Kelvin Series Water Cooling system ahead of the pack in cooling performance.
    • Expandable system. Just open it up to get the full benefits of custom water cooling, with the ability to add any components you want to the loop, such as a graphics card cooler.
    • High pressure pump allows strong water flow rates even when an additional CPU or GPU water block or an additional radiator has been added to the loop.
    • All parts have fully standard G 1/4" thread fittings for compatibility with the vast majority of enthusiast water cooling products.
    • The tubes are fastened with two-part brass fittings, providing a secure seal while being easy to open and re-seal with a standard wrench.
    • Easy refilling with dedicated fill port
    • Made with enthusiast-grade components developed in cooperation with Alphacool
    • Highly reliable ceramic bearing pump, with custom tuned maximum RPM for the optimal balance between performance and noise level
    • Full copper radiator
    • Full copper CPU Water block design featuring strategic jet plate improvements
    • Triple fan radiator, a 30mm thick 360, providing a much larger area than nearly all other pre-filled water cooling units.
    • Long lifetime. The performance of most pre-filled water cooling systems degrade quite significantly over time,  because of galvanic corrosion and water loss.

    Galvanic corrosion occurs over time when two metals with different galvanic potential (such as aluminum and copper) are in contact. It can be slowed with anti-corrosion additives in the water, but the best way to maintain performance over time is to use metals with similar galvanic potential. The Kelvin Series water cooling system is constructed with pure copper in both the radiator and the water block, along with brass fittings.
    To avoid the common issue of most pre-filled water cooling units (that tend to lose performance over time due to water loss in the tubes), Fractal Design equipped the Kelvin series with a fill dedicated port.

    General Specifications

    • Block/pump assembly measurements: 69*69*40 mm
    • Tubing Measurements: 320mm long, 11mm outer and 8mm inner diameter
    • Fitted with anti-kink coils for worry-free installation
    • Kelvin S36 Radiator Measurements: 30*124*397mm
    • Thread class for fill port and all tube fittings: G 1/4"
    • Supported sockets:  Intel: 775,1150,1155,1156,1366,2011; AMD: AM2,AM2+,AM3,AM3+,FM1,FM2,FM2+
    • Fans included: 3 pcs
    • Fractal Design Zero™ Thermal Paste ; 1 g syringe, sufficient for multiple mountings
    • Colors Available: Black
    • Net weight - Base unit only, not including mounting or fans: 1.4 kg
    • Net weight - SS-HP fan, per fan: 165 g
    • Net weight - Total excluding packaging and manual. Includes fans, mounting kit for all platforms, cooling paste (including packaging for the cooling paste) and adapter cable: 2.2 kg
    • Package dimensions - W x H x D: 350*250*151 mm
    • Package weight: 3.0 kg

    Fan Specifications

    • Fractal Design Silent Series HP 120 mm
    • 800 - 1700 RPM
    • PWM control
    • Max air flow: 62.4 CFM
    • Max pressure: 2.33 mm H2O
    • Acoustical noise: 26.9 dB(A)
    • DC 12V, 0.18A

    Pump Specifications

    • Ceramic bearing
    • 2400 RPM
    • Voltage control
    • Maximum water flow: 72 l/h
    • Maximum pressure: 1.0 m H2O
    • Acoustical noise: 25.0 dB(A)
    • DC 12V, 0.27A

    Package contents

    • Fractal Design Kelvin S36 pre-assembled Water Cooling Unit
    • 3 Fractal Design Silent Series HP PWM controlled fans
    • Intel 775,1150,1155,1156,1366 mounting hardware (including back plate)
    • Intel 2011 mounting hardware
    • AMD AM2,AM2+,AM3,AM3+,FM1,FM2,FM2+ mounting hardware
    • PWM splitter cable
    • Fractal Design Zero™ Thermal Paste, 1g Syringe
    • Long and short radiator mounting screws

    User manual

    Add-ons and Accessories

    Thermal Paste

    £1.98 inc. vat
    £4.80save £2.82
    £1.65 ex. vat
    £4.00save £2.35

    Technical Specifications


    Product Type Liquid cooling system
    Package Content Thermal paste, mounting hardware, PWM splitter cable
    Weight 2 kg
    Colour Black

    Heatsink & Fan

    Compatible With LGA775 Socket, LGA1156 Socket, Socket AM2, Socket AM2+, LGA1366 Socket, Socket AM3, LGA1155 Socket, Socket AM3+, LGA2011 Socket, Socket FM1, Socket FM2, LGA1150 Socket, Socket FM2+, LGA2011-3 Socket
    Heatsink Material Copper
    Heatsink Dimensions 69 mm x 69 mm x 40 mm
    Fans Qty 3
    Fan Diameter 120 mm
    Rotation Speed 800-1700 rpm
    Air Flow 62.4 cfm
    Air Pressure 2.33 mm
    Noise Level 26.9 dBA
    Rated Voltage 12 V
    Rated Current 0.18 A
    Features Pulse-width modulation (PWM) support


    Features G1/4" thread

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