Ariston
Ariston Safety Valve 1/2 Inch 3 Bar 573172
3 bar safety valve with 1/2 inch connection for Ariston Eurocombi, Genus, Microgenus and Ecogenus gas boilers.
At a glance
- Also known as PRESSURE-RELIEF-VALVE-12-3-BAR, 1571072, N0318-D
Showing prices
£23.64
£19.70 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 573172 is a 3 bar safety valve with a 1/2 inch connection, used on Ariston gas boilers including the Eurocombi, Genus, Microgenus and Ecogenus families. It relieves excess pressure from the heating circuit by opening and discharging water once the system reaches its set pressure. When pressure falls back, the valve reseats to close the circuit.
Signs this part needs replacing
- Water weeping or dripping from the valve discharge pipe when the system is cold
- System pressure that keeps dropping and needs frequent topping up
- The valve fails to reseat after discharging, leaving a continuous drip
- Scale or corrosion visible around the valve body or outlet
- Boiler locking out or showing a low pressure fault
Before you order
- Confirm your boiler model and serial number against the fitment list
- Check the GC number where shown for your appliance
- Verify the connection size and pressure rating match the valve being removed
Mechanical
| Part type | PRESSURE RELIEF VALVES |
|---|
Compliance
| Manufacturer part number (MPN) | 573172 |
|---|---|
| Barcode / EAN | 5411692147853 |
| Alternative numbers | PRESSURE-RELIEF-VALVE-12-3-BAR, 1571072, N0318-D |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ARISTON ACO 35 HP MFFI UK | 47-116-35 | 47-116-35 | — | — |
| ARISTON ARISTON ECOGENUS 24 MFFI - FROM SERIAL No 2320033400001 | — | — | — | |
| ARISTON ARISTON ECOGENUS 24 MFFI - FROM SERIAL No 2320033400001 TO SERIAL No 2320011800001 | — | — | — | |
| ARISTON ARISTON ECOGENUS 24 RFFI - FROM SERIAL No 2319933800115 TO SERIAL No 2320033400001 | — | — | — | |
| ARISTON ARISTON ECOGENUS 24 RFFI - FROM SERIAL No 2320011000001 | — | — | — | |
| ARISTON ARISTON EUROCOMBI A23 MFFI - FROM SERIAL No 983610001 TO SERIAL No 2320015700001 | — | — | — | |
| ARISTON ARISTON EUROCOMBI A23 MFFI - UP TO SERIAL No 983610001 | — | — | — | |
| ARISTON ARISTON EUROCOMBI A23 MFFI UK - FROM SERIAL No 2320015700001 | — | — | — | |
| ARISTON ARISTON EUROCOMBI A27 MFFI - FROM SERIAL No 983610001 TO SERIAL No 2320015700001 | — | — | — | |
| ARISTON ARISTON EUROCOMBI A27 MFFI - UP TO SERIAL No 983610001 | — | — | — |
Showing 10 of 90 compatible appliances.
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.
manual
ARISTON appliance manual — ACO 35 HP MFFI UK (GC 47-116-35)
manualmanualARISTON appliance manual — ECOGENUS 24 MFFI EDITION 1 (DEC 1999) (GC 47-116-17), ECOGENUS 24 MFFI EDITION 2 LPG (JAN 2001) (GC 47-116-17), ECOGENUS 24 MFFI EDITION 2 NG (JAN 2001) (GC 47-116-17), ECOGENUS 24 MFFI EDITION 3 LPG (OCT 2001) (GC 47-116-17), ECOGENUS 24 MFFI EDITION 3 NG (OCT 2001) (GC 47-116-17), ECOGENUS 24 MFFI EDITION 4 LPG (JULY 2002) (GC 47-116-17), ECOGENUS 24 MFFI EDITION 4 NG (JULY 2002) (GC 47-116-17), ECOGENUS 24 RFFI SYS EDITION 1 LPG (DEC 1999) (GC 41-116-03), ECOGENUS 24 RFFI SYS EDITION 1 NG (DEC 1999) (GC 41-116-03), ECOGENUS 24 RFFI SYS EDITION 2 LPG (JAN 2001) (GC 41-116-03), ECOGENUS 24 RFFI SYS EDITION 2 NG (JAN 2001) (GC 41-116-03), ECOGENUS 24 RFFI SYS EDITION 3 LPG (AUG 2002) (GC 41-116-03), ECOGENUS 24 RFFI SYS EDITION 3 NG (AUG 2002) (GC 41-116-03)
manualmanualARISTON appliance manual — EUROCOMBI A23 MFFI LPG UK EDITION 1 (OCT 2007) (GC 47-116-10), EUROCOMBI A23 MFFI NG UK EDITION 1 (OCT 2007) (GC 47-116-10), EUROCOMBI A27 MFFI LPG UK EDITION 1 (OCT 2007) (GC 47-116-12), EUROCOMBI A27 MFFI NG UK EDITION 1 (OCT 2007) (GC 47-116-12)
manualmanualARISTON appliance manual — GENUS 23 MFFI UK EDITION 1 LPG (JUN 1998) (GC 47-116-08), GENUS 23 MFFI UK EDITION 1 NG (JUN 1998) (GC 47-116-08), GENUS 23 MFFI UK EDITION 2 LPG (JAN 1999) (GC 47-116-08), GENUS 23 MFFI UK EDITION 2 NG (JAN 1999) (GC 47-116-08), GENUS 23 MFFI UK EDITION 3 LPG (SEPT 2000) (GC 47-116-08), GENUS 23 MFFI UK EDITION 3 NG (SEPT 2000) (GC 47-116-08), GENUS 27 MFFI UK EDITION 1 LPG (JUN 1998) (GC 47-116-09), GENUS 27 MFFI UK EDITION 1 NG (JUN 1998) (GC 47-116-09), GENUS 27 MFFI UK EDITION 2 LPG (JAN 1999) (GC 47-116-09), GENUS 27 MFFI UK EDITION 2 NG (JAN 1999) (GC 47-116-09), GENUS 27 MFFI UK EDITION 3 LPG (SEPT 2000) (GC 47-116-09), GENUS 27 MFFI UK EDITION 3 NG (SEPT 2000) (GC 47-116-09), GENUS 27 RFFI TANK LPG EDITION 1 (JUN 1998) (GC 41-116-01), GENUS 27 RFFI TANK LPG EDITION 2 (JAN 1999) (GC 41-116-01), GENUS 27 RFFI TANK LPG EDITION 3 (NOV 2000) (GC 41-116-01), GENUS 27 RFFI TANK NG EDITION 1 (JUN 1998) (GC 41-116-01), GENUS 27 RFFI TANK NG EDITION 2 (JAN 1999) (GC 41-116-01), GENUS 27 RFFI TANK NG EDITION 3 (NOV 2000) (GC 41-116-01), GENUS 30 MFFI UK LPG EDITION 2 (JUL 2000) (GC 47-116-13), GENUS 30 MFFI UK LPG EDITION 3 (OCT 2000) (GC 47-116-13), GENUS 30 MFFI UK NG EDITION 2 (JUL 2000) (GC 47-116-13), GENUS 30 MFFI UK NG EDITION 3 (OCT 2000) (GC 47-116-13)
manualmanualARISTON appliance manual — MICROGENUS 23 MFFI LPG EDITION 1 (DEC 1999) (GC 47-116-14), MICROGENUS 23 MFFI LPG EDITION 2 (APR 2000) (GC 47-116-14), MICROGENUS 23 MFFI LPG EDITION 3 (DEC 2000) (GC 47-116-14), MICROGENUS 23 MFFI LPG EDITION 5 (MAR 2004) (GC 47-116-14), MICROGENUS 23 MFFI NG EDITION 1 (DEC 1999) (GC 47-116-14), MICROGENUS 23 MFFI NG EDITION 2 (APR 2000) (GC 47-116-14), MICROGENUS 23 MFFI NG EDITION 3 (DEC 2000) (GC 47-116-14), MICROGENUS 23 MFFI NG EDITION 5 (MAR 2004) (GC 47-116-14), MICROGENUS 27 MFFI LPG EDITION 1 (DEC 1999) (GC 47-116-15), MICROGENUS 27 MFFI LPG EDITION 2 (APR 2000) (GC 47-116-15), MICROGENUS 27 MFFI LPG EDITION 3 (DEC 2000) (GC 47-116-15), MICROGENUS 27 MFFI LPG EDITION 5 (MAR 2004) (GC 47-116-15), MICROGENUS 27 MFFI NG EDITION 1 (DEC 1999) (GC 47-116-15), MICROGENUS 27 MFFI NG EDITION 2 (APR 2000) (GC 47-116-15), MICROGENUS 27 MFFI NG EDITION 3 (DEC 2000) (GC 47-116-15), MICROGENUS 27 MFFI NG EDITION 5 (MAR 2004) (GC 47-116-15)
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