ACV 537D4038 valvola del gas 840 sigma 0.840. 040

ACV Gas Valve 537D4038 – OEM Gas Control Component for Boilers Gas valve 537D4038 regulates and blocks gas supply in ACV boilers, supporting dual-stage burner operation. Compatible with: Prestige Excellence 50 HeatMaster 100 TC Delta Pro S 40 Benefits: Dual-stage control High reliability under load OEM part for ACV systems