Alpha
Alpha Middle Diaphragm 1.034659
Middle diaphragm, part 1.034659, for Alpha ARES TEC LPG commercial appliances.
At a glance
- Also known as MIDDLE-DIAPHRAGM, 1259870
£133.36
£111.13 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 middle diaphragm is a component used in Alpha commercial gas appliances, supplied under part number 1.034659. It sits within the appliance's gas control assembly, where the diaphragm responds to pressure changes to regulate gas flow through the valve. This item is listed for the Alpha Commercial ARES TEC range running on LPG.
Signs this part needs replacing
- Unstable or drifting burner pressure that will not hold a setting
- Poor or erratic modulation of the flame across the firing range
- Intermittent ignition or flame failure linked to gas valve operation
- Visible hardening, cracking or distortion of the diaphragm material
- Gas valve failing to respond correctly to pressure changes
Before you order
- Confirm the appliance model against the fit list above and the data plate on the unit
- Verify the part number 1.034659 against the diaphragm currently fitted
- Check whether any other gas valve components require attention at the same time
- Gas-carrying components must be fitted and commissioned by a competent, registered engineer
Compliance
| Alternative numbers | MIDDLE-DIAPHRAGM, 1034659, 1259870 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ALPHA COMMERCIAL ARES 440 TEC | — | — | — | |
| ALPHA COMMERCIAL ARES 440 TEC (LPG) | — | — | — | |
| ALPHA COMMERCIAL ARES 550 TEC | — | — | — | |
| ALPHA COMMERCIAL ARES 550 TEC (LPG) | — | — | — | |
| ALPHA COMMERCIAL ARES 660 TEC | — | — | — | |
| ALPHA COMMERCIAL ARES 660 TEC (LPG) | — | — | — | |
| ALPHA COMMERCIAL ARES 770 TEC | — | — | — | |
| ALPHA COMMERCIAL ARES 770 TEC (LPG) | — | — | — | |
| ALPHA COMMERCIAL ARES 900 TEC | — | — | — | |
| ALPHA COMMERCIAL ARES 900 TEC (LPG) | — | — | — |
Documents & drawings
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