*Buit-in parallel?connected electromagnetic pilot valve control, advanced craft and reliable action.
*Diaphragm of main valve has capability of anti-corrosion and resisting -40 ? low temperature.
*Special stainless steel magnetic material never rusts or generates remanent magnetism.
*Class F loop with good insulation.
*When main valve shuts off, work pressure 0.3~0.4MPa,flow rate is 3-4.5Lmin.