Auto & Bypass Valves

Central heating circuits use automatic bypass valves to maintain flow and pressure when radiator circuits close, while auto air vents release trapped air from pipework. Options include straight and angled models in 15 mm and 22 mm sizes, plus dry trap tundishes for condensate discharge.

Showing all 6 results

NewOffer
SKU: 7HEA0590
Altecnic 128-2010 Dry Trap Tundish 15mm x 22mm for Unvented Cylinders

£13.80 (inc VAT)£11.50 (ex VAT)

43 in stock
Altecnic 128-2010 Dry Trap Tundish 15mm x 22mm for Unvented Cylinders quantity
SKU: 7CVS0100
ESI ESABV22 Automatic Bypass Valve 22mm

£9.12 (inc VAT)£7.60 (ex VAT)

10 in stock
ESI ESABV22 Automatic Bypass Valve 22mm quantity
SKU: 7CVS0110
ESI ESABV22S Automatic Bypass Valve 22mm Straight

£9.49 (inc VAT)£7.91 (ex VAT)

8 in stock
ESI ESABV22S Automatic Bypass Valve 22mm Straight quantity
OfferFree Delivery
SKU: 7CVH0110
Honeywell DU144A Straight Automatic Bypass Valve

£41.83 (inc VAT)£34.86 (ex VAT)

9 in stock
Honeywell DU144A Straight Automatic Bypass Valve quantity
SKU: 7CVI0010
Inta AAV07911500 15mm Automatic Brass Air Vent

£7.50 (inc VAT)£6.25 (ex VAT)

11 in stock
Inta AAV07911500 15mm Automatic Brass Air Vent quantity
SKU: 7HER0490
RWC TUND6000005 Dry Trap Tundish 15x22mm

£13.12 (inc VAT)£10.93 (ex VAT)

31 in stock
RWC TUND6000005 Dry Trap Tundish 15x22mm quantity