Sime
Sime Gasket Duct Flange 6028703
Sime 6028703 gasket for the duct flange, sealing the joint between the smoke chamber and flue duct flange on Sime gas boilers.
At a glance
- Also known as 2040310
Showing prices
£12.19
£10.16 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 Sime 6028703 is a gasket for the duct flange, sealing the joint between the smoke chamber and the flue duct flange. It is used on Sime gas boilers. The gasket is fitted at the connection between the smoke chamber and the flue duct flange.
Signs this part needs replacing
- Visible cracks, splits or tears in the gasket material
- Hardening or brittleness of the gasket
- Signs of flue gas leakage around the duct flange joint, such as soot deposits
- Condensate or water marks around the joint
- Discolouration or heat damage to the gasket
Before you order
- Confirm your appliance model and GC number against the fitment list above
- Check the existing gasket for the part number 6028703 or match the shape and size
- Verify the gasket is for the smoke chamber to flue duct flange joint
- Ensure the boiler is isolated and cooled before starting work
Compliance
| Alternative numbers | 2040310 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| SIME BRAVA DGT HE25 - ?8111800 | 47-283-38 | 47-283-38 | — | — |
| SIME BRAVA DGT HE30 - ?8111802 | 47-283-39 | 47-283-39 | — | — |
| SIME BRAVA DGT HE35 - ?8111804 | 47-283-40 | 47-283-40 | — | — |
| SIME BRAVA SLIM HE 20 R E - 8112266 | — | — | — | |
| SIME BRAVA SLIM HE 20 R I - 8112265 | — | — | — | |
| SIME BRAVA SLIM HE 40 R E - 8112268 | — | — | — | |
| SIME BRAVA SLIM HE 40 R I - 8112267 | — | — | — | |
| SIME DEWY 30/130 HE FS - 8101905 | — | — | — | |
| SIME DEWY 30/130 WM - 8101900 | 47-293-05 | 47-293-05 | — | — |
| SIME DEWY 30/80 WM - 8097800 | 47-283-04 | 47-283-04 | — | — |
Showing 10 of 77 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
SIME appliance manual — BRAVA DGT HE25 - ?8111800 (GC 47-283-38), BRAVA DGT HE30 - ?8111802 (GC 47-283-39), BRAVA DGT HE35 - ?8111804 (GC 47-283-40)
manualmanualSIME appliance manual — BRAVA SLIM HE 20 R E - 8112266, BRAVA SLIM HE 20 R I - 8112265, BRAVA SLIM HE 40 R E - 8112268, BRAVA SLIM HE 40 R I - 8112267
manualmanualSIME appliance manual — DEWY 30/130 HE FS - 8101905
manualmanualSIME appliance manual — DEWY 30/130 WM - 8101900 (GC 47-293-05), DEWY 30/80 WM - 8097800 (GC 47-283-04)
manualmanualSIME appliance manual — EDEA 25 T - 8116910 (GC 41-283-64), EDEA 35 T - 8116912 (GC 41-283-65)
manualmanualSIME appliance manual — EDEA 30 - 8116900 (GC 47-283-91), EDEA 40 - 8116902 (GC 47-283-92)
manualmanualSIME appliance manual — FORMAT DGT HE12 SYSTEM - 8108116, FORMAT DGT HE20 SYSTEM - 8108118 (GC 41-283-18), FORMAT DGT HE25 - 8108110 (GC 47-283-24), FORMAT DGT HE30 - 8108112 (GC 47-283-25), FORMAT DGT HE35 - 8108114 (GC 47-283-26)
manualmanualSIME appliance manual — MERIDIAN HE 25 - 8111850, MERIDIAN HE 30 - 8111852
manualmanualSIME appliance manual — MERIDIAN HE 30C - 8111862
manualmanualSIME appliance manual — MURELLE ADVANCED HE 30 Erp - 8114224 (GC 47-283-53), MURELLE ADVANCED HE 40 Erp - 8114226 (GC 47-283-54)
manualmanualSIME appliance manual — MURELLE ADVANCED HE30 - 8112224 (GC 47-283-53), MURELLE ADVANCED HE40 - 8112226 (GC 47-283-54)
manualmanualSIME appliance manual — MURELLE ONE HE 25 - 8115010 (GC 47-283-79)
manualmanualSIME appliance manual — MURELLE PRO HE 20 R - 8112242 (GC 41-283-39), MURELLE PRO HE 30 R - 8112244 (GC 41-283-40)
manualmanualSIME appliance manual — MURELLE PRO HE 20R MKII - 8114243 (GC 41-283-61), MURELLE PRO HE 30R MKII - 8114245 (GC 41-283-62)
manualmanualSIME appliance manual — MURELLE PRO HE 25 Erp - 8114220 (GC 47-283-49), MURELLE PRO HE 30 Erp - 8114222 (GC 47-283-50)
manualmanualSIME appliance manual — MURELLE PRO HE 25 HO ErP - 8114270 (GC 41-283-42)
manualmanualSIME appliance manual — MURELLE PRO HE 25 LPG - 8114228 (GC 47-283-52)
manualmanualSIME appliance manual — MURELLE PRO HE20 R - 8112242 (GC 41-283-39), MURELLE PRO HE30 R - 8112244 (GC 41-283-40)
manualmanualSIME appliance manual — MURELLE PRO HE25 - 8112220 (GC 47-283-49), MURELLE PRO HE30 - 8112222 (GC 47-283-50)
manualmanualSIME appliance manual — MURELLE REVOLUTION 30 - 8116102 (GC 47-283-87)
manualmanualSIME appliance manual — PLANET DEWY 100 BFR - 8104950 (GC 41-283-11), PLANET DEWY 60 BFR - 8093575 (GC 41-283-03), PLANET DEWY 60 BFR - 8093577 (GC 41-283-03)
manualmanualSIME appliance manual — PLANET DEWY 110 - 8093587 (GC 47-719-11), PLANET DEWY 90 - 8093583 (GC 47-719-10)
manualNo technical questions yet for this part.
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