Can the half-open valve save natural gas?

If the valve is half open, natural gas can't be saved. Installing a valve can quickly cut off the gas source or open the gas source. Generally, the on-off state of the ball valve is controlled by the handle, but this valve only has the on-off function and cannot save natural gas consumption. If the valve is adjusted to a semi-open and semi-closed state, the contact between natural gas and sealing materials can not be completely isolated, which will easily lead to corrosion or impact of sealing materials for a long time, and will also lead to valve damage. Especially in emergency situations such as gas leakage at home, it will be very dangerous if the valve is closed improperly.