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Specializing in the production of Shanghai SHUANGHENG valve JAV JAV-I type oil tank

JAV Jav for main security equipment installation of crude oil, gasoline, kerosene, diesel, aromatics and other fixed type storage tank on top of the Jav is protected from evaporation losses and storage tank under overpressure or vacuum from damage (JAV). Jacket insulation breather valve is usually used in conjunction with fire arrestor.

price:USD$200.00
discount 70% in 2018-09-19 to 2018-09-21
price: USD$ 140.00
freight :USD$18.00,(Express)
freight :USD$7.00,(Postal parcel)
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Gold, silver and silver award as the user reputation, as users praise. The company set up a set of quality assurance testing system and strict after-sales service management system. In order to ensure product quality, crack down on fake and shoddy products, so that our customers buy safe, qualified and reliable brand products, our company introduced QID9000 digital security system and made the factory security labels. High quality, efficient service, widely praised and trusted by users. Various special valves can be produced according to user's requirements.

Jacketed breather valveProduct brief:

JAV Jav for main security equipment installation of crude oil, gasoline, kerosene, diesel, aromatics and other fixed type storage tank on top of the Jav is protected from evaporation losses and storage tank under overpressure or vacuum from damage (JAV). Jacket insulation breather valve is usually used in conjunction with fire arrestor.

Jacketed breather valveWorking principle:

JAV Jav installed in the tank top has heat preservation function and solve the tank pressure, negative pressure of the gas, the liquid out of the tank is not impeded, when the liquid in the tank when the gas out of a large number of outbound (known as pressure). If the liquid in the tank goes out, the tank must be sucked into the tank from the outside air (called negative pressure). If the valve is closed automatically when the work is stopped, the liquid gas in the tank can not be leaked out, and the quality of the liquid in the tank can be ensured.

Jacketed breather valveProduct features:

1, simple structure, easy maintenance, safe and convenient.

2, the valve disc adopts PTFE material, low temperature resistance, good anti freezing performance.

3, the new all-weather breathing valve housing adopts stainless steel, cast steel and aluminum alloy, corrosion resistance is good.

4. Jacketed breather valve is usually used in conjunction with fire arrestor.

Jacketed breather valveData reference table of ventilation capacity under different nominal diameter and pressure level:

Nominal diameter
50
80
100
125
150
200
250
300
350
Pressure grade
Ventilation volume (m3/h)
A
+355
-295
18
16
23
16
45
35
90
75
190
160
340
280
550
450
820
760
1050
910
B
+980
-295
21
16
27
16
55
35
100
75
200
160
380
280
600
450
900
760
1130
910
C
+1750
-295
26
40
32
20
85
35
140
75
280
160
500
280
800
450
1150
760
1150
910

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