Pressure/vacuum valve with gas freeing cover: The pressure valve will automatically open when the pressure in the tank reaches to the set pressure of the high-velocity relief valve and the gas in the tank will be released with the speed of 30m/s once assemble the high-velocity relief valve on the ventilation system of the cargo oil tank, A manual ventilation system gas-freeing cover is necessary while do other works of the tank such as cleaning, removing the gas, because such works need ventilate and the pressure valve cannot work while the pressure is low or without pressure (remark: The pressure valve is not manual and it will work with the velocity of smaller than 30m/s).
Shell, upper cover and flame screen (flame retardant bed) constitute gas-freeing cover. It can directly assemble on the vacuum valve of the high-velocity relief valve.
|
Model |
Opening pressure
(kPa) |
Rated working pressure
(kPa) |
Flow rate
(m3/h) |
Outlet air flow velocity of pressure valve(m/s) |
|
Pressure valve |
Vacuum valve |
Pressure valve |
Vacuum valve |
Air removal cover |
Pressure valve |
Vacuum valve |
Air removal cover |
|
CF50 |
14.0-21.0 |
-3.5-7.0 |
21.0 |
-7.0 |
2.0 |
>350 |
>350 |
>250 |
>30 |
|
CF65 |
14.0-21.0 |
-3.5-7.0 |
21.0 |
-7.0 |
2.0 |
>350 |
>350 |
>250 |
>30 |
|
CF80 |
14.0-21.0 |
-3.5-7.0 |
21.0 |
-7.0 |
2.0 |
>600 |
>600 |
>400 |
>30 |
|
CF100 |
14.0-21.0 |
-3.5-7.0 |
21.0 |
-7.0 |
2.0 |
>800 |
>600 |
>400 |
>30 |
|
CF125 |
14.0-21.0 |
-3.5-7.0 |
21.0 |
-7.0 |
2.0 |
>1500 |
>1500 |
>1000 |
>30 |
|
CF150 |
14.0-21.0 |
-3.5-7.0 |
21.0 |
-7.0 |
2.0 |
>2000 |
>2000 |
>1000 |
>30 |
|
CF200 |
14.0-21.0 |
-3.5-7.0 |
21.0 |
-7.0 |
2.0 |
>3000 |
>3000 |
>2200 |
>30 |
|
CF250 |
14.0-21.0 |
-3.5-7.0 |
21.0 |
-7.0 |
2.0 |
>3500 |
>3000 |
>2200 |
>30 |
The company specially manufactures the marine safety equipments and fire protection equipments which was built in 90s.
Recently, the high velocity relief valve (pressure/vacuum valve) which---was researched and manufactured by itself, has got the technology innovation fund for medium or small enterprise, and filled the domestic gap. It also was built by our company firstly in China.
Marine series high-velocity relief valve and laboratory for the high velocity relief valve was ratified by the China Classification Society and some foreign classification societies.
The series high velocity relief valve, which was manufactured by our company that has became the essentials in oil tank and chemical tanker both at home and abroad.
Our tenet is to contribute in the marine safety industry, create the A-class products and serve for all the customers. We also insist on Quality comes first, safeguard our credit.
