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Honeywell DU145 22mm Automatic Bypass Valve

Brand: Honeywell
HCO Code: 05C02
Price: £34.19
Ex VAT: £28.49
Stock: In Stock
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The DU145 Automatic Bypass Valve is suitable for all heatingsystems up to 6Bar static pressure where a boiler bypass isrequired or radiator thermostats are fitted.The DU145 provides a simple method of ensuring adequate flowthrough boilers which require a bypass as well as reducingsystem noise.
In systems fitted with radiator thermostats the DU145Automatic Bypass Valve opens automatically as the TRVs orzone valves close down and the resistance of the system startsto exceed the preset pressure limit.
Automatic Bypass Valves are particularly beneficial in improvingefficiency by bypassing the system when necessary and alsoimproving control of the system fitted with TRVs by ensuring aconstant differential pressure across the radiator.

Model: DU145-3/4B

 

 

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Heating Controls Online is rated 4.90 stars by Reviews.co.uk based on 1791 merchant reviews

4.90 / 5 Rating
1791 Reviews
The range of goods is excellent, the website easy to navigate and delivery is prompt. My only quibble was with the additional information provided for one of the items I bought, a Horstmann H27 XL Series 2 Channel.Plus. It stated that this unit would replace my H527 with"same backplate and wiring for easy changeover". What it failed to mention is that the backplate is on the right hand side, while that on the H27 is on the left. Because my programmer is mounted near a wall edge, there is no way I can mount the new unit without moving the wall plate and all the wiring. It's not going to be such an easy changeover! I appreciate that the exact position of the programmer will not matter to most people, but in my case I wish I had known before I purchased it.
All good, right bit and arrived quickly
Excellent, fast delivery