1. Introduction of A411XH breathing safety valve

Breathing safety valve is a safety device used to install on light oil tank trucks and storage tanks. The function is to reduce the evaporation loss of oil products and protect the tank body from overloading. The hydraulic safety valve is a safety backup device for the (flap-type) breathing valve. Its inhalation and exhalation action pressure is slightly higher than that of the (flap-type) breathing valve. Once the breathing valve fails or its flap freezes in winter At this time, the liquid seal of the hydraulic safety valve is destroyed to protect the oil tank from damage. The hydraulic safety valve is a safety backup device for the (flap-type) breathing valve. Its inhalation and exhalation action pressure is slightly higher than that of the (flap-type) breathing valve. Once the breathing valve fails or its flap freezes in winter At this time, the liquid seal of the hydraulic safety valve is destroyed to protect the oil tank from damage.

2. Parameters of A411XH breathing safety valve:

Product name: Breathing safety valve

Product model: A411XH

Product caliber: DN80-250

Product pressure: 0.1-2.5Mpa

Product material: cast steel, stainless steel, etc.

Product application: oil tanker

Control pressure: +200mm water column, -45mm water column

Please specify the product name, model and specifications when ordering.

3. The main shape and flange connection dimensions of the breathing safety valve:

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