| Breather valves are used on oil and liquid tanks to eliminate positive and negative pressure gases inside the tank, making it convenient for liquids to enter and exit the tank If there is no breathing valve installed on the tank, there may be certain obstacles to the entry and exit of liquid in the tank, which may lead to tank deformation and vibration. This product is designed reasonably, has a simple structure, and is easy to use; It is an essential product for storage tanks and indispensable. Breather valve performance and characteristics: The new all-weather breathing valve housing is made of cast iron, cast steel, and aluminum alloy, with good corrosion resistance; The valve disc is made of PTFE material, which is resistant to low temperatures and has good anti freezing performance; • Simple structure, easy maintenance, safe and convenient; The performance of the new all-weather breathing valve fully complies with the standard SY7511-87 of the Ministry of Petroleum Industry. Scope of application of breathing valve: The new all-weather breathing valve is suitable for storing Class A oil products with a flash point below 28 ℃ and Class B oil products with a flash point below 60 ℃, such as gasoline, benzene, benzene, kerosene, light diesel, engine oil, crude oil, and chemical product storage tanks with the same properties. Can be used in conjunction with new corrugated flame arresters. Instructions for using the breathing valve: The breathing valve is installed at the top of the storage tank to solve the problem of positive and negative pressure gas inside the tank, so that the liquid in and out of the tank is not obstructed. When the external liquid is input into the tank, a large amount of gas is exhaled (called positive pressure). When the liquid inside the tank is exported, it must be sucked into the tank from the outside air (called negative pressure). If the breathing valve automatically closes when the work stops, it will not leak the liquid and gas inside the tank, which ensures the quality of the liquid inside the tank. Breathing valve maintenance and upkeep: For the safety of using the breathing valve, check whether the guide rod and valve disc are flexible before use. This valve should be checked regularly (within 6 months) to ensure that the positive and negative valve discs of the ventilation port are flexible, and that the contact surface of the valve disc is not damaged. If there is any damage, it should be repaired immediately. After the maintenance is completed, everything is normal and can be reused. |
Main technical parameters: | A-grade positive pressure | 355Pa (36mm water column) | | negative pressure | 295Pa (30mm water column) | | B-level positive pressure | 980Pa (100mm water column) | | negative pressure | 295Pa (30mm water column) | | C-level positive pressure | 1765Pa (180mm water column) | | negative pressure | 295Pa (30mm water column) | |
Component materials:
| | Valve body material | Carbon steel WCB, stainless steel 304, 316, aluminum alloy | | Positive pressure valve disc material | Stainless steel 304, 316, aluminum alloy | | Negative pressure valve disc material | Stainless steel 304, 316, PTFE PTFE | | Environmental temperature ℃ | -30~60 | | |