SIT 848 SIGMA Combi Boiler Gas Valve Compatible with Baxi and Roca (0848054 - Yellow Coil)

The SIT 848 SIGMA series gas valve manages the gas flow to the burner system, the heart of your boiler, with flawless precision. Manufactured to European standards (Made in EU), this high-tech modulating valve ensures that your boiler runs on the ideal air-gas mixture, offering maximum fuel savings and safety.

Detailed Technical Specifications

• Manufacturer and Series: SIT Group - 848 SIGMA (Yellow Coil)
• Original Product Code: 0848054 (848054)
• Compatible Brands: Baxi, Roca
• Compatible OEM Codes: JJJ005670620, JJJ005671930, 125567193
• Gas Compatibility: ALLGAS (Compatible with all gas types)
• Maximum Inlet Pressure (Pi max): 60 mbar
• Outlet Pressure Range (Po): 0.5 - 12 mbar
• Air/Gas Ratio: 1:1
• Coil 1 (EV1) Ratings: 230V~50Hz, 9.2 VA, Class B
• Coil 2 (EV2) Ratings: 230V~50Hz, 2.8 VA, Class C
• Operating Temperature Range (T.amb.): -10°C to +60°C

Usage and Installation Warnings

Providing top-level protection against gas leaks thanks to its double safety valve (EV1 and EV2), this part is critical for the safety of your heating system. Since replacing the gas valve requires working directly on the gas line, installation, leak testing and gas pressure (minimum/maximum) calibration must be carried out by authorized technical services.

Frequently Asked Questions

What does a combi boiler gas valve do?

The gas valve precisely manages the gas flow to the boiler’s burner system. This SIT 848 SIGMA series modulating valve provides the ideal air-gas mixture (1:1 ratio) for fuel savings and safe operation; with its ALLGAS design, it is compatible with all gas types.

Which boilers is the 0848054 gas valve compatible with and what are its OEM codes?

It is compatible with Baxi and Roca boilers. Its original code is 0848054 (848054) and the compatible OEM codes are JJJ005670620, JJJ005671930 and 125567193.

What are the technical values of the SIT 848 SIGMA gas valve?

The maximum inlet pressure is 60 mbar and the outlet pressure range is 0.5–12 mbar. Coil ratings are 230V~50Hz 9.2 VA (Class B) for EV1 and 230V~50Hz 2.8 VA (Class C) for EV2; the operating temperature range is -10°C to +60°C.

Who should install the gas valve?

Since replacing the gas valve requires working directly on the gas line, installation, leak testing and gas pressure calibration must be carried out by authorized technical services.

Can I buy regularly with an invoice as a service company/technician?

Yes, all our sales are invoiced. All orders, including those from service companies and technicians, are placed directly through our website.

How do I track my shipment after ordering?

Your shipment tracking number is sent to your e-mail and phone after ordering; you can follow its status in the “Where Is My Shipment?” section.

Can I return or exchange the product?

Yes. Under Consumer Protection Law No. 6502 you have the right of withdrawal/return within 14 days of delivery. To avoid ordering the wrong model, we recommend that you verify compatibility before ordering. Details are on our “Delivery, Returns and Exchanges” page.

What payment and installment options are available?

You can pay by debit/credit card and Tosla, and take advantage of installment/credit options through Fibabanka and Akbank. Current options are listed on our “Payment Options” page.

Where is Yedepa located and how is delivery made?

Yedepa is an e-commerce site; orders are placed through yedepa.com and shipped to your address by courier from our warehouses across Turkey and from our contracted suppliers. Our head office is at Cennet Mah. 2. Yavuz Selim Cad. No:68/A, Küçükçekmece / İstanbul.