Baxi
Baxi Flow Restrictor 5116018
A 10 L/min flow restrictor for Baxi and Potterton combi boilers, used to regulate the domestic hot water flow rate.
At a glance
- Part type: flow restrictor
- Also known as 1123833
Showing prices
£13.38
£11.15 ex. VAT · VAT at 20%
Available to order · 7 working days
Available to order · 7 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 Baxi 5116018 is a flow restrictor rated at 10 litres per minute, fitted in the domestic hot water circuit of Baxi and Potterton combi boilers. It limits the flow rate through the hot water path so the boiler can reach and hold its target outlet temperature. It is used across the Duo-Tec, Platinum, Gold and Titanium combi ranges.
Signs this part needs replacing
- Noticeably reduced hot water flow at the taps
- Hot water temperature fluctuating or running cold at higher flow rates
- Boiler cycling or failing to hold a steady domestic hot water temperature
- Restrictor blocked with scale or debris, or damaged during servicing
Before you order
- Confirm your boiler model and serial number fall within the ranges listed above
- Check the existing restrictor is rated at 10 L/min
- Verify part number 5116018 against the manufacturer's parts list for your appliance
Compliance
| GC number | H33-279 |
|---|---|
| Barcode / EAN | 5039177661924 |
| Alternative numbers | 1123833 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BAXI DUO-TEC 24 COMBI ErP FROM SERIAL No. PSR16 - ENDING BC | 47-075-96 | 47-075-96 | — | — |
| BAXI DUO-TEC 24 COMBI ErP SERIAL No. ENDING AC | 47-075-96 | 47-075-96 | — | — |
| BAXI DUO-TEC 24 HE | 47-075-23 | 47-075-23 | — | — |
| BAXI DUO-TEC 28 LPG COMBI ErP SERIAL No. ENDING AC | 47-075-98 | 47-075-98 | — | — |
| BAXI DUO-TEC COMBI 24 HE A (AFTER SERIAL No. BTG 0815) | 47-075-35 | 47-075-35 | — | — |
| BAXI DUO-TEC COMBI 24 HE A (BEFORE SERIAL No. BTG 0815) | 47-075-35 | 47-075-35 | — | — |
| BAXI PLATINUM 24 COMBI ErP SERIAL No. ENDING AC | 47-077-04 | 47-077-04 | — | — |
| BAXI PLATINUM 24HE COMBI | 47-075-20 | 47-075-20 | — | — |
| BAXI PLATINUM 28 COMBI ErP SERIAL No. ENDING AC | 47-077-05 | 47-077-05 | — | — |
| BAXI PLATINUM 33 COMBI ErP SERIAL No. ENDING AC | 47-077-06 | 47-077-06 | — | — |
Showing 10 of 23 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
BAXI appliance manual — DUO-TEC 24 COMBI ErP FROM SERIAL No. PSR16 - ENDING BC (GC 47-075-96)
manualmanualBAXI appliance manual — DUO-TEC 24 COMBI ErP SERIAL No. ENDING AC (GC 47-075-96), DUO-TEC 28 LPG COMBI ErP SERIAL No. ENDING AC (GC 47-075-98)
manualmanualBAXI appliance manual — DUO-TEC 24 HE (GC 47-075-23)
manualmanualBAXI appliance manual — DUO-TEC COMBI 24 HE A (AFTER SERIAL No. BTG 0815) (GC 47-075-35), DUO-TEC COMBI 24 HE A (BEFORE SERIAL No. BTG 0815) (GC 47-075-35)
manualmanualBAXI appliance manual — PLATINUM 24 COMBI ErP SERIAL No. ENDING AC (GC 47-077-04), PLATINUM 28 COMBI ErP SERIAL No. ENDING AC (GC 47-077-05), PLATINUM 33 COMBI ErP SERIAL No. ENDING AC (GC 47-077-06), PLATINUM 40 COMBI ErP SERIAL No. ENDING AC (GC 47-077-07)
manualmanualBAXI appliance manual — PLATINUM 24HE COMBI (GC 47-075-20), PLATINUM COMBI 24HE (GC 47-075-27)
manualmanualBAXI appliance manual — PLATINUM COMBI 24 HE A - AFTER SERIAL No. BMY 0815 (GC 47-075-31)
manualmanualBAXI appliance manual — PLATINUM COMBI 24 HE A - BEFORE SERIAL No. BMY 0815 (GC 47-075-31)
manualmanualPOTTERTON appliance manual — GOLD COMBI 24 HE (GC 47-590-05)
manualmanualPOTTERTON appliance manual — GOLD COMBI ErP 24 - SERIAL No. ENDING AC (GC 47-393-43), GOLD COMBI ErP 24 - SERIAL No. ENDING BC (GC 47-393-43), GOLD COMBI ErP 24 - SERIAL No. ENDING DC (GC 47-393-43), GOLD COMBI ErP 24 - SERIAL No. ENDING EC (GC 47-393-43)
manualmanualPOTTERTON appliance manual — GOLD COMBI HE A 24 - AFTER SERIAL No. BMX 0815 AND AFTER GNH 0815 (GC 47-393-18), GOLD COMBI HE A 28 LPG (GC 47-393-30)
manualmanualPOTTERTON appliance manual — GOLD COMBI HE A 24 - BEFORE SERIAL No. BMX 0815 AND GNH 0815 (GC 47-393-18)
manualmanualPOTTERTON appliance manual — TITANIUM 24 (GC 47-393-39)
manualNo technical questions yet for this part.
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