
Vokera
Vokera Safety Valve 4250
Screw-fit safety relief valve for Vokera gas boilers, including Flowmatic, Maxin and Mynute models.
At a glance
- Also known as 1531122, 4250VOK
£18.00
£15.00 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 Vokera 4250 is a screw-fit safety relief valve used in Vokera gas boilers. It is a Caleffi 512 type valve that opens to discharge water when system pressure exceeds safe limits, protecting the boiler and connected components. It is a serviceable spare for older Vokera appliance families.
Signs this part needs replacing
- Water weeping or dripping from the discharge pipe when the system is not over-pressurised
- System pressure rising above the normal operating range
- Valve failing to reseat after discharging
- Scale or debris preventing the valve from sealing
- Boiler losing pressure or discharging water repeatedly
Before you order
- Check your boiler model against the fitment list above
- Confirm the valve connection is screw fit
- For Vokera Excell 96E, check the serial number is up to N5/052641
- Have the GC number to hand where shown
Compliance
| GC number | 333-772 |
|---|---|
| Alternative numbers | 1531122, 4250VOK |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VOKERA 18/72 DMCF COMBI | 47-094-04 | 47-094-04 | — | — |
| VOKERA 18/72 MCF COMBI | — | — | — | |
| VOKERA 20/80 CF FLOWMATIC | 47-094-10 | 47-094-10 | — | — |
| VOKERA 20/80 RS FLOWMATIC | 47-094-07 | 47-094-07 | — | — |
| VOKERA 20/80 RS TURBO | 47-094-03 | 47-094-03 | — | — |
| VOKERA 20/80 RS TURBO (A) | 47-094-03 | 47-094-03 | — | — |
| VOKERA 21/48 TURBO | — | — | — | |
| VOKERA 21/84 DC TURBO | 47-094-26 | 47-094-26 | — | — |
| VOKERA 21/84 DMCF COMBI | 47-094-03 | 47-094-03 | — | — |
| VOKERA 21/84 MCF | 47-094-01 | 47-094-01 | — | — |
Showing 10 of 55 compatible appliances.
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.
VOKERA appliance manual — 18/72 DMCF COMBI (GC 47-094-04), 21/84 DMCF COMBI (GC 47-094-03)
manualmanualVOKERA appliance manual — 20/80 CF FLOWMATIC (GC 47-094-10)
manualmanualVOKERA appliance manual — 20/80 RS FLOWMATIC (GC 47-094-07)
manualmanualVOKERA appliance manual — 21/84 MCF (GC 47-094-01)
manualmanualVOKERA appliance manual — 24/96 CF FLOWMATIC (GC 47-094-09)
manualmanualVOKERA appliance manual — 24/96 RSE FLOWMATIC (GC 47-094-08)
manualmanualVOKERA appliance manual — ELIDRA 24/96 A.G.M (GC 47-094-15)
manualmanualVOKERA appliance manual — EXCELL 80SP (OLD HYDRAULICS) (GC 47-094-16)
manualmanualVOKERA appliance manual — MAXIN 24CF (GC 47-094-25)
manualmanualVOKERA appliance manual — MAXIN 24E (GC 47-094-22), MAXIN 28E (GC 47-094-23)
manualmanualVOKERA appliance manual — MYNUTE 10 SE (GC 41-094-11), MYNUTE 14 SE (GC 41-094-12), MYNUTE 20 SE (GC 41-094-13)
manualmanualVOKERA appliance manual — MYNUTE 12/48 RS (GC 41-094-04)
manualmanualVOKERA appliance manual — MYNUTE 14/48 SE (GC 41-094-06), MYNUTE 20/70 SE (GC 41-094-07)
manualmanualVOKERA appliance manual — MYNUTE 14/48 SP (GC 41-094-09)
manualmanualVOKERA appliance manual — MYNUTE 28/96SE (GC 41-094-08)
manualmanualVOKERA appliance manual — MYNUTE 28SE (GC 41-094-14)
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