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Air Valve, Single Orifice Air Valve, Double Orifice Air Valve Supplier The air valve is a special valve used to prevent the decompression wave of the transient process from generating negative pressure in the pipe. There are two types of air valve: single orifice air valve and double orifice air valve. Air Valve, Single Orifice Air Valve, Double Orifice Air Valve Supplier The air valve is a special valve used to prevent the decompression wave of the transient process from generating negative pressure in the pipe. There are two types of air valve: single orifice air valve and double orifice air valve.
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