1. Explosion proof and fire prevention integrated design: integrating breathing valve and flame arrester functions, with built-in stainless steel flame retardant corrugated plate to prevent external flame propagation and meet the fire and explosion prevention requirements of petrochemical storage tanks.
2. Constant pressure opening and closing, reliable sealing: The positive and negative pressure valve discs are loaded with independent springs or heavy hammers, ensuring precise and stable opening pressure; After closure, the soft hard composite seal (explosion-proof soft seal ring+metal hard seal) has a low leakage rate.
3. all-weather protective structure: The top of the valve body is equipped with rain and dust protection covers, and the internal drainage groove can prevent rainwater accumulation, ensuring normal operation in harsh environments such as rain, snow, wind, and sand.
4. Strong corrosion resistance: The valve body is made of high-quality aluminum alloy, cast steel or stainless steel, and the valve disc and flame retardant core are made of stainless steel or fluoroplastic, suitable for corrosive media such as oil and gas, chemical solvents, etc.
5. High ventilation volume and low pressure drop: Optimized flow channel design, low respiratory resistance, strong ventilation capacity, ensuring stable pressure of the storage tank during rapid liquid inflow and outflow.
6. Easy maintenance: The flame retardant core can be removed for cleaning, the valve disc component is easy to disassemble, and it is convenient for regular inspection and replacement of seals, extending the service life.