Ariston
Ariston Isolating Valve 3/4 CH Return 997742
Ariston 997742 3/4 inch isolating valve for the central heating return, fitted to Ariston Genus 30 MFFI UK boilers.
At a glance
- Also known as 1576858
Showing prices
£57.48
£47.90 ex. VAT · VAT at 20%
Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Ariston 997742 is a 3/4 inch isolating valve for the central heating return. It is fitted to Ariston Genus 30 MFFI UK boilers, allowing the heating circuit to be isolated for service and maintenance.
Signs this part needs replacing
- Leaks from the valve body or spindle
- Valve handle is stiff, seized or will not turn
- Weeping at the compression connections
- Corrosion or scale around the valve
- Difficulty isolating the central heating return during service
Before you order
- Check your boiler model and serial number against the fitment list
- Confirm the valve is for the central heating return
- Verify the connection size is 3/4 inch
- Check the part number 997742 matches your existing valve
Compliance
| Barcode / EAN | 5411692245023 |
|---|---|
| Alternative numbers | 1576858 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ARISTON ARISTON GENUS 30 MFFI UK - FROM SERIAL No 2320004900093 | — | — | — | |
| ARISTON ARISTON GENUS 30 MFFI UK FROM SERIAL No 2320015700001 TO SERIAL No 2320004900093 | — | — | — | |
| ARISTON GENUS 30 MFFI UK LPG EDITION 2 (JUL 2000) | 47-116-13 | 47-116-13 | — | — |
| ARISTON GENUS 30 MFFI UK LPG EDITION 3 (OCT 2000) | 47-116-13 | 47-116-13 | — | — |
| ARISTON GENUS 30 MFFI UK NG EDITION 2 (JUL 2000) | 47-116-13 | 47-116-13 | — | — |
| ARISTON GENUS 30 MFFI UK NG EDITION 3 (OCT 2000) | 47-116-13 | 47-116-13 | — | — |
Fitment listings are a guide, not a guarantee. Plant-room assemblies get modified on site more often than not. Send us the GC number off the data badge and a photo of the existing valve and we will confirm before anything is dispatched.
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 technical questions yet for this part.
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