
Honeywell
Honeywell Angled Automatic By-Pass Valve DU146-3/4E
Honeywell DU146-3/4E angled automatic by-pass valve with ¾” BSP female connections.
At a glance
- Also known as 4200190
£107.69
£89.74 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Honeywell DU146-3/4E is an angled automatic by-pass valve with ¾” BSP female connections. It is a differential by-pass valve that maintains a minimum flow through a heating circuit by opening when the differential pressure across it rises. It is used on pumped heating systems where a by-pass path is required rather than being tied to one specific appliance.
Before you order
- Confirm the pipework connection is ¾” BSP male to suit the BSP female ports.
- Check the available space around the installation point suits an angled body.
- Verify the part number DU146-3/4E against the existing valve or system documentation.
Compliance
| Alternative numbers | 4200190 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| HONEYWELL RESIDENTIAL PRODUCTS | — | — | — |
Documents & drawings
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