Product model: QZF
Valve diameter: DN25-300mm
Nominal pressure: PN0.3~1.6MPa
Applicable temperature: 30 ℃~60 ℃
Applicable media: kerosene, diesel, toluene, etc
Performance and characteristics
The QZF all-weather fire-resistant breathing valve is a ventilation device installed on a fixed roof tank, which reduces oil evaporation loss, controls tank pressure, and prevents external flames from entering. This valve has the characteristics of high ventilation, low leakage, corrosion resistance, and has an electrostatic grounding wire to maintain an equal potential with the tank body. This valve has antifreeze performance and is suitable for cold regions.
National standard flange connection external dimensions: GB, JB
|
Model |
|
|
Installation dimensions（mm） |
||||
|
D1 |
D |
L |
H |
N-d |
|
|
DN50 |
?110 |
?140 |
362 |
360 |
4×14 |
|
DN80 |
?170 |
?185 |
513 |
445 |
4×18 |
|
DN100 |
?170 |
?205 |
513 |
445 |
4×16 |
|
DN150 |
?225 |
?260 |
640 |
610 |
8×18 |
|
DN200 |
?280 |
?315 |
770 |
700 |
8×18 |
|
DN250 |
?335 |
?370 |
918 |
828 |
12×18 |
|
DN300 |
?395 |
?435 |
1050 |
910 |
12×23 |
American standard flange connection dimensions: ANSI, API, ASME available for JIS standards
|
model |
Installation dimensions（mm） |
||||
|
D1 |
D |
L |
H |
N-d |
|
|
2 |
120.5 |
152 |
362 |
360 |
4×14 |
|
3 |
152.5 |
190 |
513 |
445 |
4×18 |
|
4 |
190.5 |
229 |
513 |
445 |
4×16 |
|
6 |
241.5 |
254 |
640 |
610 |
8×18 |
|
8 |
298.5 |
343 |
770 |
700 |
8×18 |
|
10 |
362 |
406 |
918 |
828 |
12×18 |
|
12 |
483 |
432 |
1050 |
910 |
12×23 |
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://laipp.cn
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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