Main purpose
Fire breathing valves are installed on the top of oil tanks to reduce the evaporation loss of oil in the tank, control the pressure inside the tank, and ensure fire safety.
Positive pressure:+ Negative pressure of 180mm water column: - 30mm water column |
|
|||
Breathing valve baffle install Remove the top breathing valve ① of the oil tank (as shown in the figure, the same below), then fold the baffle ② and send it into the tank ④ through the joint pipe ③ to flatten it. Then place the fixed plate disc at the center of the joint pipe flange, press the electrostatic grounding wire ⑤ gasket under the connecting bolt of the breathing valve, and reinstall the breathing valve. |
Main appearance and flange connection dimensions
specifications
|
Drawing No
|
Weight
|
Installation size (millimeters)
|
|
(Kg/set)
|
A
|
B
|
||
DN80
|
Fc1-80-00
|
≈2
|
Ø198
|
N+constant
|
DN100
|
Fc1-100-00
|
≈3
|
Ø228
|
N+constant
|
DN150
|
Fc1-150-00
|
≈5
|
Ø318
|
N+constant
|
DN200
|
Fc1-200-00
|
≈8
|
Ø438
|
N+constant
|
DN250
|
Fc1-250-00
|
≈11
|
Ø546
|
N+constant
|