The automatic exhaust valve integrates the advantages of the traditional double port exhaust valve and the single port quick exhaust valve, and creatively designs the advanced technology that can keep the exhaust sealing ball on the same sealing arc surface all the time, with good sealing and exhaust effects. The common exhaust valve rotates rapidly with the sealing ball in the exhaust process, like a table tennis ball rushing upward in a glass bottle, constantly changing the sealing arc, causing leakage.

The unique design of double port quick exhaust, micro exhaust and automatic air intake makes the exhaust valve have the function of dynamic automatic switching according to the air volume. Stainless steel sealing ball and stainless steel basket can withstand low temperature of -20°C without bursting.