Check Valve, a valve to prevent the reverse flow of liquid (gas), is designed to block the flow in one direction and to promote the flow in the opposite direction. A Ball or O-Ring is used for the sealing purposes to prevent the reverse flow for certain. Both gas and liquid can be used. * Features- 2-pattern sealing type. (O-ring type, Ball type).- O-ring for easy replacement and ball replacement-type check.- Excellent corrosion resistant.- A valve using stainless steel 316 cold material for preventing reverse flow.- A valve that facilitates one-directional movement by blocking the...