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Mechanical Protection & Ventilation

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  1. ESI Auto Bypass Valve - ESABV22

    SKU: HCON031

    ESI Auto Bypass Valve - ESABV22
    • 22mm compressing fitting
    • Reduces system noise
    • 16 bar maximum pressure
    £9.54 £7.95
  2. Honeywell Home EA122 Automatic Air Vent

    SKU: HCON715

    Honeywell EA122 Automatic Air Vent
    • Integral stop valve. Enables seat to be cleaned without draining the system 
    • Vacuum break ensures air collection 
    • Simple service and cleaning 
    £12.74 £10.62
  3. Honeywell Home 22mm Differential Valve By-Pass DU145B

    SKU: HCON712

    Honeywell 22mm Differential Valve By-Pass DU145B
    • Quick and Easy to adjust 
    • Quietens the system and stabalises system pressure 
    • High capacity flow - up to 50 litres per minute 
    £40.39 £33.66
  4. Y Type Strainer DZR 22mm - 355215

    SKU: PLBF169

    Y Type Strainer DZR 22mm - 355215
    • 22mm x 22mm compression connections for simple, low cost installations
    • Max. working pressure: 16 bar
    • Max. temperature: 110°C
    £7.92 £6.60
  5. Automatic Air Vent 3/8"

    SKU: HCON610

    Automatic Air Vent 3/8"
    • Auto Air Vent
    • 3/8" Size
    • 6 Bar Discharge Pressure
    £6.46 £5.38
  6. Altecnic Eres Differential Bi Pass Valve 22mm ER-22MMANGBI

    SKU: HCON600

    Altecnic Eres Differential Bi Pass Valve 22mm ER-22MMANGBI
    • 22mm In Size 
    • Will fit most circulating pumps 
    • Ensures heating pump does not work against a closed circuit 
    £16.97 £14.14
  7. ESI Auto Bypass Valve - Straight - ESABV22S

    SKU: HCON032

    ESI Auto Bypass Valve - Straight - ESABV22S
    • 22mm compressing fitting
    • Reduces system noise
    • 16 bar maximum pressure
    £9.54 £7.95
  8. Automatic Air Vent 15mm

    SKU: HCON611

    Automatic Air Vent 15mm
    • Automatically discharges air build up 
    • Improves efficiency 
    • 1 year manufacturers warranty
    £7.07 £5.89
  9. Tower Air Separator Standard 22mm

    SKU: HCON661

    Tower Air Separator Standard 22mm
    • MPN: 70065751 
    • Product Type: Air Separator 
    • Size: 22mm
    £64.16 £53.47
  10. Honeywell Home Automatic Bypass Valve Straight - DU144A1001

    SKU: HCON725

    Honeywell Home Automatic Bypass Valve Straight - DU144A1001
    • Unique & simple adjustment mechanism
    • Wide differential pressure range 0.1 to 0.6 bar
    • 22mm compression fittings for ease of installation
    £42.83 £35.69
  11. Intatec Auto Bypass Valve Angled 22mm

    SKU: PLBF197

    Intatec Auto Bypass Valve Angled 22mm ABPA401022
    • Automatically stabilises flow 
    • Protects the pump from pumping against closed head 
    • Easily adjustable 
    £9.42 £7.85

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