Free Next Day Delivery

UK Orders over £50 before 7pm
 

No Fuss Returns

Find out how we make it easy
 

Quick Shop

15,000 Products in stock
Basket 0

items

My Basket (0)

Your basket is empty

Delivery

Delivery

FREE Delivery!

On orders over £50*

Total inc. delivery and VAT

Total inc. delivery and exc. VAT

Browse

Find Products

Search our Catalogue

Filter by

Sort

Filter by

Product Type

Brand

December Savings! Christmas & New Year Opening Hours Friday Deal!
Quality Brand!

Auto Bypass Valve (8 products)

Differential bypass valve is designed to prevent the pump from working against a closed circuit when all the 2 port control valves or thermostatic radiators have closed. Read more Show less

  • 1 of 1

Automatic By-Pass Differential Valve - 22mm Angled

Part number: 21382

Automatic differential by-pass valve, angled with 22 mm compression connect...

Ex. VAT

£5.50

Save £0.70 (11%)

Inc. VAT

£6.60

Save £0.84 (11%)

Automatic By-Pass Differential Valve - 22mm Angled

Part number: 17884

The ABV-22 automatic bypass and differential pressure valve with differenti...

Ex. VAT

£8.32

Inc. VAT

£9.98

Automatic By-Pass Differential Valve - 22mm Straight

Part number: 21383

Automatic differential by-pass valve, straight with 22 mm compression conne...

Ex. VAT

£7.25

Save £0.80 (9%)

Inc. VAT

£8.70

Save £0.96 (9%)

Automatic By-Pass Differential Valve - 22mm Straight

Part number: 19570

Differential bypass valve is designed to prevent the pump from working agai...

Ex. VAT

£6.96

Inc. VAT

£8.35

Honeywell DU145 Auto By-Pass Valve - 22mm Angled

Part number: 18864

Honeywell straight or angled automatic bypass valve controls the flow of wa...

Ex. VAT

£47.71

Inc. VAT

£57.25

Honeywell Commercial Auto By-Pass Valve - 3/4" Angled

Part number: 18865

Honeywell DU146 commercial automatic bypass valve controls flow of water th...

Ex. VAT

£72.17

Inc. VAT

£86.60

Honeywell DU144 Auto By-Pass Valve - 22mm Straight

Part number: 18863

Honeywell straight or angled automatic bypass valve controls the flow of wa...

Ex. VAT

£47.71

Inc. VAT

£57.25

Automatic By-Pass Differential Valve - 22mm Angled

Part number: 12161

WRAS approved, angled body. This valve is very effective in systems where v...

Ex. VAT

£37.78

Inc. VAT

£45.34

Top