All-weather respiration valve made in china
All-weather respiration valve It has the characteristics of large ventilation, good sealing performance, small leakage and corrosion resistance.
The all-weather breather valve has a gravity structure with overlapping seats. It is characterized by the soft contact between the valve disc and the seat with air cushion, good air tightness, not easy to frost freeze, suitable for use in cold areas.
The new type breathing valve is used to install the main safety equipment on the fixed item storage tank of crude oil, gasoline, kerosene, light diesel oil,explosion-proof fire breathing valve aromatics, etc. It is used to cause evaporation loss and protect the storage tank from damage when it is under overpressure or empty. All-weather (fire retardant) breather valves are usually used with flame arresters.
Main technical parameters
Operating pressure: Class A positive pressure: 355Pa (36mm water column);
Negative pressure: 295Pa (30mm water column)
Grade B positive pressure: 980Pa (100mm water column);
Negative pressure: 295Pa (30mm water column)
Grade C positive pressure: 1765Pa (180 mm water column);
Negative pressure: 295Pa (30mm water column)
Please specify product name, model, specification and pressure level when ordering.
structural representation：
