Shanghai Hengxing Pump and Valve Manufacturing Co., Ltd
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    No. 318 Xiangle Road, Nanxiang Town, Jiading District, Shanghai
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GHF-1 type fireproof breathing valve
GHF-1 fire breathing valve
Product details
GHF-1 typeFire breathing valve

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.


Operating Pressure

Positive pressure:+ Negative pressure of 180mm water column: - 30mm water column

Structure diagram

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.
1. The breathing valve baffle is lifted below the joint pipe between the breathing valve and the oil tank to reduce the loss of oil and gas leakage during the large breathing process.
2. Please indicate the name, specifications, and drawing number when placing an order. The actual height of the tank top joint pipe is n.

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
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