Vaillant
Vaillant By-Pass Valve 150216
Vaillant by-pass valve, part number 150216, for Ideal Commercial Concord gas boilers.
At a glance
- Also known as 1176797
Showing prices
£4.34
£3.62 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 Vaillant by-pass valve, part number 150216, is a boiler component that regulates the differential pressure across the heating circuit and maintains the minimum flow rate through the appliance. It is listed for use on Ideal Commercial Concord gas boilers. The valve sits in the boiler's hydraulic circuit and opens as system resistance rises, protecting the heat exchanger from low-flow conditions.
Signs this part needs replacing
- The boiler locks out or shuts down on overheat or flow-related faults during heating demand
- Kettling, banging or rushing water noise from the boiler at low system flow
- Poor circulation or uneven heat across the system with no other obvious cause
- Water weeping from the valve body, spindle or its connections
- The valve no longer holds a steady differential pressure when the heating circuit is balanced
Before you order
- Confirm the appliance model and variant against the fitment list, including whether it is a natural gas or propane unit
- Check the part number marked on the existing valve before removal to compare with 150216
- Inspect the valve body connections and orientation so the replacement matches the installed arrangement
- Verify the fault is with the by-pass valve rather than the pump, system pressure or expansion vessel
Compliance
| GC number | 255-297 |
|---|---|
| Barcode / EAN | 5022141502163 |
| Alternative numbers | 1176797 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| IDEAL COMMERCIAL CONCORD CX 40 SERIES 3 | 41-387-60 | 41-387-60 | — | — |
| IDEAL COMMERCIAL CONCORD CX 40P SERIES 3 - PROPANE | — | — | — | |
| IDEAL COMMERCIAL CONCORD CX 60 SERIES 3 | 41-387-62 | 41-387-62 | — | — |
| IDEAL COMMERCIAL CONCORD CX 60P SERIES 3 - PROPANE | — | — | — | |
| IDEAL COMMERCIAL CONCORD CXA 100H | — | — | — | |
| IDEAL COMMERCIAL CONCORD CXA 100P - PROPANE | — | — | — | |
| IDEAL COMMERCIAL CONCORD CXA 110 | 41-387-85 | 41-387-85 | — | — |
| IDEAL COMMERCIAL CONCORD CXA 110H | — | — | — | |
| IDEAL COMMERCIAL CONCORD CXA 120 | 41-387-86 | 41-387-86 | — | — |
| IDEAL COMMERCIAL CONCORD CXA 120H | — | — | — |
Showing 10 of 114 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
IDEAL COMMERCIAL appliance manual — CONCORD CX 40 SERIES 3 (GC 41-387-60), CONCORD CX 40P SERIES 3 - PROPANE, CONCORD CX 60 SERIES 3 (GC 41-387-62), CONCORD CX 60P SERIES 3 - PROPANE
manualmanualIDEAL COMMERCIAL appliance manual — CONCORD CXA 100H, CONCORD CXA 110H, CONCORD CXA 120H, CONCORD CXA 40H, CONCORD CXA 50H, CONCORD CXA 60H, CONCORD CXA 70H, CONCORD CXA 80H, CONCORD CXA 90H
manualmanualIDEAL COMMERCIAL appliance manual — CONCORD CXA 100P - PROPANE, CONCORD CXA 40P - PROPANE (GC 41-387-78), CONCORD CXA 50P - PROPANE (GC 41-387-79), CONCORD CXA 60P - PROPANE (GC 41-387-80), CONCORD CXA 70P - PROPANE (GC 41-387-81), CONCORD CXA 80P - PROPANE (GC 41-387-82), CONCORD CXA 90P - PROPANE (GC 41-387-83)
manualmanualIDEAL COMMERCIAL appliance manual — CONCORD CXA 110 (GC 41-387-85), CONCORD CXA 120 (GC 41-387-86), CONCORD CXA 40 (GC 41-387-78), CONCORD CXA 50 (GC 41-387-79), CONCORD CXA 60 (GC 41-387-80), CONCORD CXA 70 (GC 41-387-81), CONCORD CXA 80 (GC 41-387-82), CONCORD CXA 90 (GC 41-387-83)
manualmanualIDEAL COMMERCIAL appliance manual — CONCORD CXAP 100H - PROPANE, CONCORD CXAP 110H - PROPANE, CONCORD CXAP 120H - PROPANE, CONCORD CXAP 40H - PROPANE, CONCORD CXAP 50H - PROPANE, CONCORD CXAP 60H - PROPANE, CONCORD CXAP 70H - PROPANE, CONCORD CXAP 80H - PROPANE, CONCORD CXAP 90H - PROPANE
manualmanualIDEAL COMMERCIAL appliance manual — CONCORD CXD 40 SERIES 3, CONCORD CXD 50 SERIES 3, CONCORD CXD 60 SERIES 3, CONCORD CXD 70 SERIES 3, CONCORD CXD 80 SERIES 3, CONCORD CXD 90 SERIES 3
manualmanualIDEAL COMMERCIAL appliance manual — CONCORD CXS 110/H, CONCORD CXS 120/H, CONCORD CXS 40/H, CONCORD CXS 50/H, CONCORD CXS 60/H, CONCORD CXS 70/H, CONCORD CXS 80/H, CONCORD CXS 90/H
manualmanualIDEAL COMMERCIAL appliance manual — CONCORD CXS 110NG, CONCORD CXS 120NG, CONCORD CXS 40NG, CONCORD CXS 50NG, CONCORD CXS 60NG, CONCORD CXS 70NG, CONCORD CXS 80NG, CONCORD CXS 90NG
manualmanualIDEAL COMMERCIAL appliance manual — CONCORD CXSD 110/H, CONCORD CXSD 120/H, CONCORD CXSD 40/H, CONCORD CXSD 50/H, CONCORD CXSD 60/H, CONCORD CXSD 70/H, CONCORD CXSD 80/H, CONCORD CXSD 90/H
manualmanualIDEAL COMMERCIAL appliance manual — CONCORD CXSD 110NG (GC 41-391-47), CONCORD CXSD 120NG (GC 41-391-48), CONCORD CXSD 40NG (GC 41-387-96), CONCORD CXSD 50NG (GC 41-387-97), CONCORD CXSD 60NG (GC 41-387-98), CONCORD CXSD 70NG, CONCORD CXSD 80NG (GC 41-387-99), CONCORD CXSD 90NG (GC 41-391-33)
manualmanualVAILLANT appliance manual — COMBIcompact VCW 240T (1988-1995) (GC 47-044-15), COMBIcompact VCW 240XT (1995-1996) (GC 47-044-15), VCW 240T (GC 47-044-15), VCW 240XT (GC 47-044-15)
manualmanualVAILLANT appliance manual — COMBIcompact VCW 242E (1988-1995) (GC 47-044-13), VCW 242E (GC 47-044-13)
manualmanualVAILLANT appliance manual — THERMOcompact VC 112E (1988-1998) (GC 41-044-02), THERMOcompact VC 142E (1988-1998) (GC 41-044-09), VC 112E (GC 41-044-02), VC 142E (GC 41-044-09)
manualmanualVAILLANT appliance manual — THERMOcompact VC 182E (1988-1996) (GC 41-044-04), THERMOcompact VC 242E (1988-1996) (GC 41-044-07), VC 182E (GC 41-044-04), VC 242E (GC 41-044-07)
manualmanualVAILLANT appliance manual — VC SINE 18T3W (1983-1988), VCW 15/1 T3W (1983-1988), VCW 20/1 T3W (1983-1988) (GC 47-044-03), VCW 25/1 T3W (1983-1988) (GC 47-044-05), VCW SINE 18T3W (1983-1988) (GC 47-044-01)
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