This demand valve features a bionic design inspired by the shape of a human clenched fist, offering a compact form factor that is easy for users to grip and operate. Installed directly beneath the mask, it does not obstruct the field of vision, ensuring clear observation during operations and enhancing both safety and convenience.
- When removed, the demand valve enables ambient air bypass functionality. It features a self-locking mechanism with the mask and allows one-button switching between ambient air and cylinder air supply, ensuring safe and reliable operation while conserving air.
- The demand valve and medium-pressure hose can be freely connected and disconnected for easy maintenance and replacement.
- Opening Pressure: ≤ -16 mbar (below ambient pressure)
- Static Pressure: 2.8 ~ 4.5 mbar
- Air Flow Rate: ＞500 L/min
1. Ergonomic Bionic Design: Compact and easy to grip, designed to maintain an unobstructed field of vision.
2. High-Flow Air Supply: Exceeds 500 L/min, meeting high respiratory demands up to 130 L/min during strenuous activities.
3. 360° Quick Connection: Allows rapid connection with the mask interface at any angle for convenient operation.
4. Manual Purge Button: Equipped with a button for manual air supply to purge the mask interior, enhancing user comfort.
5. Excellent Durability and Airtightness: Operates reliably in temperatures ranging from -30°C to +60°C and maintains airtight integrity under 1.4 MPa pressure without leakage.
6. Automatic Activation: Features first-breath automatic activation and an automatic positive pressure mechanism for enhanced safety.
7. Detachable Design: Easily detachable from the mask for convenient daily use, cleaning, and maintenance.
Widely used in firefighting, petroleum, petrochemical, industrial, municipal, and other sectors requiring respiratory protection.
