Product model: GFQ
Nominal diameter: DN50~300mm
Nominal pressure: PN0.6~1.6MPa
Working temperature: 30-60 ℃
Applicable media: kerosene, diesel, toluene, etc
Applicable scope
The new all-weather breathing valve is suitable for storing Class A oil products with a flash point D of 28 ℃ and Class B oil products with a flash point D of 60 ℃, such as gasoline, benzene, methyl benzene, kerosene, light diesel, engine oil, crude oil, and chemical product storage tanks with the same properties. It can be used together with the new corrugated flame arrester.
Instructions
The breathing valve is installed on the top of the storage tank to solve the problem of positive and negative pressure gas inside the tank, so that the liquid inside the tank is not obstructed. When the external liquid enters the tank, a large amount of gas is exhaled (called positive pressure). When the liquid inside the tank is output to the outside, it must be sucked into the tank from the outside air (called negative pressure). If the breathing valve automatically closes when it stops working, it will not cause the liquid and gas in the tank to leak out, providing a favorable guarantee for the quality of the liquid in the tank.
Maintenance and upkeep
For the safety of using the breathing valve, check whether the guide rod and valve disc are flexible before use. This valve should be regularly (within 6 months) checked for flexibility of the positive and negative valve discs at the ventilation port, and for any damage to the contact surface of the valve disc. If there is any damage, it should be repaired immediately. After maintenance, everything is normal and can be reused.
National standard flange connection external dimensions: GB, JB
|
model |
Installation dimensions（mm） |
||||
|
d1 |
d |
d3 |
h |
m-h |
|
| dn25 | 70 | 100 | 115 | 180 | 4×10 |
|
dn50 |
110 |
140 |
160 |
255 |
4×12 |
|
dn80 |
150 |
185 |
213 |
260 |
4×16 |
|
dn100 |
170 |
205 |
265 |
290 |
4×16 |
|
dn150 |
225 |
260 |
305 |
330 |
8×16 |
|
dn200 |
280 |
315 |
355 |
350 |
8×16 |
|
dn250 |
335 |
370 |
420 |
400 |
12×16 |
American standard flange connection external dimensions: Ansi, API, and ASME can be provided as JIS standards
|
model |
Installation dimensions（mm） |
||||
|
d1 |
d |
d3 |
h |
m-h |
|
| 1" | 79.5 | 108 | 115 | 180 | 4×15 |
|
2" |
120.5 |
152 |
160 |
255 |
4×19 |
|
3" |
152.5 |
190 |
213 |
260 |
4×19 |
|
4" |
190.5 |
229 |
265 |
290 |
8×19 |
|
6" |
241.5 |
254 |
305 |
330 |
8×22 |
|
8" |
298.5 |
343 |
355 |
350 |
8×22 |
|
10" |
362 |
406 |
420 |
400 |
12×25 |
Add: No. 175, Lane 250, Fangde Road, Jiading District, Shanghai
Tel: +86-21-51863336
Fax: +86-21-34677003
E-mail: shldv@139.com
Web: Http://www.shldv.com
Fujian plant site：2233 Maosheng Road, Nan 'an City, Fujian Province
Factory telephone：+86-21-31007333
Shanghai Public Network Anbei: 31011402004337Sitemap
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