Cast Steel Breather Valve
The breathing valve is used for oil and liquid tank to remove positive pressure and negative pressure gas in the tank, so that the liquid in and out of the tank is convenient. If there are some obstacles to the liquid in and out of the tank without breathing valve on the tank, it is likely to occur tank deformation and vibration. The product is reasonable in design, simple in structure and convenient in use. It is an indispensable product of the tank.
Application scope of breathing valve
1. The new all-weather breathing valve of oil storage tank is suitable for storage with flash point less than 28. C class a oil and flash point less than 60. Class B oil products of C, such as gasoline, benzene, methylbenzene, kerosene, light diesel oil, crude oil, aviation oil, food oil and other oil products and chemical product tanks with the same properties.
2. It can be used together with new type of corrugated oil tank flame arrester and hydraulic safety valve.
Main technical parameters of all-weather breathing valve
Operating pressure: positive pressure: + 980pa (100mm water column);
Negative pressure: - 295pa (30mm water column)
Please indicate the product name, model, specification and pressure rating when ordering.

|
Size (mm) |
Detail Size(mm) |
||||
|
D |
K |
L |
H |
n×φ |
|
|
DN25 |
115 |
85 |
160 |
165 |
4×14 |
|
DN32 |
135 |
100 |
180 |
185 |
4×18 |
|
DN40 |
145 |
110 |
190 |
190 |
4×18 |
|
DN50 |
160 |
125 |
220 |
220 |
4×18 |
|
DN80 |
195 |
160 |
270 |
260 |
8×18 |
|
DN100 |
215 |
180 |
310 |
280 |
8×18 |
|
DN150 |
280 |
240 |
380 |
330 |
8×22 |
|
DN200 |
335 |
295 |
450 |
380 |
12×22 |
|
DN250 |
395 |
350 |
520 |
420 |
12×22 |
|
DN400 |
565 |
515 |
670 |
520 |
16×26 |
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