Abstract: A valve having two opposing self-sealing poppets includes a valve body, two poppets, a diaphragm and two levers. The valve body has two passages opposite to each other and two poppet seats disposed opposite to each other and corresponding to the passages. When the valve is in a closed state, both poppets are pressed against the poppet seats and the media is prevented from flowing in either direction. When the valve is in an open state, both poppets axially move away from the poppet seats and the media can flow in either direction.

Abstract: A valve having two opposing self-sealing poppets includes a valve body, two poppets, a diaphragm and two levers. The valve body has two passages opposite to each other and two poppet seats disposed opposite to each other and corresponding to the passages. When the valve is in a closed state, both poppets are pressed against the poppet seats and the media is prevented from flowing in either direction. When the valve is in an open state, both poppets axially move away from the poppet seats and the media can flow in either direction.

Abstract: A gas/fluid control device includes a valve body, a first poppet and a second poppet, a first lever and a second lever, and an actuator. The valve body has a chamber inside thereof, has passages at opposite sides of the chamber communicable with the chamber, and has a poppet seat around an end of each passage. The first poppet and the second poppet correspond to respective poppet seats in the chamber. The first lever and the second lever respectively connect to the first poppet and the second poppet. The actuator locates above the diaphragm and connects to the first and second levers.