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Hyco Speedflow SF4 Expansion Vessel, Check Valve & Pressure Reducing Valve Kit

£94.80 £79.00
In stock
Delivery Time:
Next Working Day
2 Years
Quick Code:
Order Line:
01977 663331
  • Pressure Reducing Valve
  • Expansion Vessel 
  • Check Valve
  • 2 litre expansion vessel included
  • Hyco Speedflow SF4 Expansion Vessel, Check Valve & Pressure Reducing Valve Kit.

    The SF4 kit contains a 2 litre expansion vessel and check valve to prevent expanded hot water re-entering the cold water supply. It also comes with a pressure reducing valve, for areas where water pressure is high. The SF4 kit is suitable for use with small unvented water heaters such as the Hyco Speedflow unit.

    Manufactured to the highest quality using high quality materials, these units are built to last. Speedflow Accessories for Unvented Water Heater 5, 10 and 15 litre depending on the details of the Speedflow installation, additional accessories may be needed to comply with the Water Regulations.

    An expansion vessel, check valve and pressure reducing valve kit for Speedflow installations where the pressure is above 4.2 bar, and hot water expansion cannot be accommodated in the pipework.

    • To be used in conjunction with Hyco Speedflow unvented water heaters
    • 2 litre expansion vessel set at 3.5 bar
    • Pressure reducing valve
    • Comes with one way check valve
    • See Technical Table for more information
    • Expansion Vessel: H225mm x W120mm x D120mm
    • Check Valve: H65mm x W25mm x D25
    • Pressure Reducing Valve: H52mm x W120mm x D44mm
    • Compatible with: 5ltr, 10ltr & 15ltr speedflow water heaters. 



    • Pressure Reducing Valve
    • Expansion Vessel 
    • Check Valve
    • 2 litre expansion vessel included


    Product Code Compatible Models EAN Number
    SF4 Hyco Speedflow Water Heaters  5060423370383


    Product Information:

    Capacity (Litres) 2
    Mount Type On cold water inlet line
    Pre Charge Bar Rating 3.5 bar
    Brand Hyco 
    Dimensions Expansion Vessel (mm) H225mm x W120mm x D120mm
    Dimensions Check Valve (mm) H65mm x W25mm x D25
    Dimensions Pressure Reducing Valve (mm) H52mm x W120mm x D44mm
    Weight (kg) 1.4

    Our Delivery Charges and times are explained:


    Delivery Charges
    All deliveries have a standard charge of £7.99 + VAT up to 20kg. Where stated, certain products are delivered FREE of charge (mainland UK only*). Check the description of the desired product and if it says free delivery then you will not be charged for delivery*

    Extra Charges
    Where the weight is over 20kg we reserve the right to charge more dependent on product type and delivery postcode, our customer service team will be in touch and inform you of any extra charges before we despatch.

    Delivery Times
    All products will have a delivery time stated in their description. Next Working Day - these products will be delivered Next Working Day if ordered before 12.00, or in certain circumstances up until 4:00 pm. Please call if you require a Next Working Day and we will try our best to get it to you. Certain products will state within 48hrs, within 3 Days or within 5 days. These products will be delivered within the time stated. If you require delivery on a certain day please put this in the comments and we will aim to deliver on that day.

    Certain products such as radiators are delivered after 5 working days, when purchasing a radiator please put in the desired delivery date which is 5 working days after ordering. In some cases, stock permitting, we can get radiators out sooner. Please call or put in the customer comments if you need something urgently and we will try our best.

    Saturday Deliveries
    We can arrange for a Saturday delivery for certain products, please call 01977 663331 for more details.

    Please note: Although we will do our utmost to deliver your product in the time stated we cannot be held responsible for any unforeseen delays. Please do not book a plumber, electrician, etc until you have received the goods as we will not be held responsible for their time. Please read our terms and conditions for further details.

    additional charges may be applicable dependent on your location please double-check with our customer service team

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