Spare part for Fangzhan SCBA Model: RHZK6
The demand valve is typically located on the facepiece or mask of the SCBA. It is designed to deliver air to the user only when they inhale, ensuring that the air supply is conserved and maximized. When the user takes a breath, the demand valve opens, allowing the compressed air to flow into the mask. As the user exhales, the demand valve closes, preventing the air from escaping and minimizing the wastage of the air supply.
