Mechanical Protection & Ventilation

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  1. Honeywell EA122 Automatic Air Vent
    £12.74 £10.62
    Honeywell Home EA122 Automatic Air Vent

    Ref: HCON715

    • Integral stop valve. Enables seat to be cleaned without draining the system 
    • Vacuum break ensures air collection 
    • Simple service and cleaning 
  2. ESI Auto Bypass Valve - ESABV22
    £9.54 £7.95
    ESI Auto Bypass Valve - ESABV22

    Ref: HCON031

    • 22mm compressing fitting
    • Reduces system noise
    • 16 bar maximum pressure
  3. Honeywell 22mm Differential Valve By-Pass DU145B
    £40.39 £33.66
    Honeywell Home 22mm Differential Valve By-Pass DU145B

    Ref: HCON712

    • Quick and Easy to adjust 
    • Quietens the system and stabalises system pressure 
    • High capacity flow - up to 50 litres per minute 
  4. Automatic Air Vent 3/8"
    £6.78 £5.65
    Automatic Air Vent 3/8"

    Ref: HCON610

    • Auto Air Vent
    • 3/8" Size
    • 6 Bar Discharge Pressure
  5. Y Type Strainer DZR 22mm - 355215
    £7.99 £6.66
    Y Type Strainer DZR 22mm - 355215

    Ref: PLBF169

    • 22mm x 22mm compression connections for simple, low cost installations
    • Max. working pressure: 16 bar
    • Max. temperature: 110°C
  6. Automatic Air Vent 15mm
    £7.68 £6.40
    Automatic Air Vent 15mm

    Ref: HCON611

    • Automatically discharges air build up 
    • Improves efficiency 
    • 1 year manufacturers warranty
  7. Altecnic Eres Differential Bi Pass Valve 22mm ER-22MMANGBI
    £19.97 £16.64
    Altecnic Eres Differential Bi Pass Valve 22mm ER-22MMANGBI

    Ref: HCON600

    • 22mm In Size 
    • Will fit most circulating pumps 
    • Ensures heating pump does not work against a closed circuit 
  8. ESI Auto Bypass Valve - Straight - ESABV22S
    £9.54 £7.95
    ESI Auto Bypass Valve - Straight - ESABV22S

    Ref: HCON032

    • 22mm compressing fitting
    • Reduces system noise
    • 16 bar maximum pressure
  9. Tower Air Separator Standard 22mm
    £66.73 £55.61
    Tower Air Separator Standard 22mm

    Ref: HCON661

    • MPN: 70065751 
    • Product Type: Air Separator 
    • Size: 22mm
  10. Honeywell Home Automatic Bypass Valve Straight - DU144A1001
    £42.83 £35.69
    Honeywell Home Automatic Bypass Valve Straight - DU144A1001

    Ref: HCON725

    • Unique & simple adjustment mechanism
    • Wide differential pressure range 0.1 to 0.6 bar
    • 22mm compression fittings for ease of installation
  11. Intatec Auto Bypass Valve Angled 22mm ABPA401022
    £10.50 £8.75
    Intatec Auto Bypass Valve Angled 22mm

    Ref: PLBF197

    • Automatically stabilises flow 
    • Protects the pump from pumping against closed head 
    • Easily adjustable 

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