
Ideal
Ideal Mix Valve Obturator Cart HIU 177645
Ideal 177645 mix valve obturator cartridge for Ideal Commercial heat interface units, regulating the DHW blend temperature.
At a glance
- Part type: Mix valve obturator cartridge
- Appliance family: Ideal Commercial heat interface units
- Also known as 1782884
£221.59
£184.66 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 Ideal 177645 is a mix valve obturator cartridge for Ideal Commercial heat interface units (HIUs). It fits inside the mixing valve body and controls the blend of primary and secondary water so the domestic hot water outlet holds a steady temperature. Because the obturator is a serviceable cartridge rather than a fixed component, it can be renewed without replacing the complete valve assembly.
Signs this part needs replacing
- Domestic hot water temperature drifting or fluctuating at the outlet
- Mixing valve unable to hold its set point, with water running hot then cold
- Scale or system debris building up on the obturator and restricting its movement
- Cartridge sticking or seizing so the valve no longer modulates smoothly
- Water weeping past the cartridge body or around the valve spindle
Before you order
- Confirm the appliance model and serial number against the compatibility list before ordering.
- Compare the number on the existing cartridge with 177645 to be sure of the match.
- Cross-reference the alternative number 1782884 when checking older stock or paperwork.
- Inspect the valve body seals and O-rings while the valve is open and renew them if worn.
Mechanical
| Part type | Mix valve obturator cartridge |
|---|---|
| Appliance family | Ideal Commercial heat interface units |
Compliance
| Manufacturer part number (MPN) | 177645 |
|---|---|
| Commodity code | 8481 90 00 00 |
| GPC classification | Central Heating Replacement Parts/Accessories |
| Alternative numbers | 1782884 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| IDEAL COMMERCIAL IDEAL COMMERCIAL PARTS | — | — | — |
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
No technical questions yet for this part.
Not sure which part?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.
