Esi Controls Automatic Bypass Valve - Straight



£8.94 ex. VAT


£10.73 inc. VAT

This ESABV22S is a straight Automatic Bypass Valve with a 22mm compression fitting, a wide differential pressure range, from 0.05 to 0.5 bar, and a high capacity flow of up to 50 litres per minute.

The ESABV22S also has 16 bar maximum pressure and an intermittent temperature of 120ÂșC. It is designed to maintain the water flow in central heating systems fitted with TRVs. They do this by maintaining the desired minimum flow rate through the boiler and limit circulation pressure when water paths may be closed.

Automatic Bypass Valves reduce system noise that may be caused from TRVs or zone valves closing, eliminate pump impeller wear that can result from high flow resistance, enhance the life of the boiler heat exchanger by ensuring minimum flow rate at all rimes, and save energy by only allowing flow through the bypass when needed. The use of an Automatic Bypass Valve is recommended by the UK Government (DEFRA) as Best Practice in the CHeSS guide to central heating systems.

UK Building Regulations confirm that if a bypass is installed, an Automatic Bypass Valve must be fitted.

  • Reduces System Noise
  • 16 Bar Max Pressure

£10.73 inc. VAT

£8.94 ex. VAT

  • Esi Controls Automatic Bypass Valve - Straight

    Brand ESi Controls
    Category Bypass Valves
    Product Code ESABV22S
    Max Pressure 16 Bar
    GTIN 0753677550773
  • Collect in-store

    Collection available between 8am and 4:30pm
    Please bring your order confirmation with you on collection.
    Please wait for us to contact you before making your way to collect your items.

  • Our delivery policy

    UK Mainland Deliveries only, excluding the Scottish Highlands.

    We will deliver goods as soon as we can, an estimated delivery date will be provided on the checkout pages. For stock items, this may be as soon as the next day. For out of stock items it may take a few days longer.

    See our 'Terms of Sale' for more information on our Delivery Policy.

  • Our returns policy

    See our 'Terms of Sale' for more information on our returns policy.