Resistant to fire breathing valve all-weather
- Products
- Ball valve
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- Check valve
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- Forged steel valve
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- Hydraulic control valve
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- Metallurgical valve
- Flame arrester and breathing valve
- Solenoid valve
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- Oil field valve
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- Actuator series
Valve size: DN50-300mm, NPS2 "~ 12"
Nominal pressure: PN1.0MPa
proof level: BS 5501: IIA, IIB, IIC
main material: carbon steel WCB, 304,316 stainless steel, aluminum
positive pressure valve disk material: 304,316 stainless steel, aluminum alloy
negative pressure valve disk material: stainless steel 304,316, tetrafluoroethylene PTFE
flange standard: ANSI, API, ASME, JIS standard for
All-weather fire retardant valve performance and features
QZF-89 all-weather fire breathing valve is installed on the fixed roof tank ventilation device, play a reduction of oil evaporation loss, control of tank pressure and prevent the introduction of the role of the outside flame. The valve has a large amount of ventilation, leakage, corrosion resistance and other characteristics, and electrostatic grounding line so that the valve and the tank to maintain equipotential. The valve has antifreeze properties, suitable for cold areas.
All-weather fire breathing valve main technical parameters
|
Positive pressure |
353 Pa (36 mmH2O), 980.7 Pa (100 mmH2O) |
|
Negative pressure |
294.2 Pa (36 mmH2O) |
Resistant fire breathing valve parts and components of the material
|
Body material |
Carbon Steel WCB, Stainless Steel 304,316, Aluminum Alloy |
|
Positive pressure valve disc material |
Stainless steel 304,316, aluminum alloy |
|
Negative pressure valve disc material |
Stainless steel 304,316, PTFE PTFE |
|
Ambient temperature ℃ |
-30 ~ 60 |
QZF-89 all-weather resistance fire breathing valve GB flange connection Dimensions: GB, JB
|
specification |
Installation size (mm) |
||||
|
D1 |
D |
L |
H |
Nd |
|
|
DN50 |
Ø110 |
Ø140 |
362 |
360 |
4 × 14 |
|
DN80 |
Ø170 |
Ø185 |
513 |
445 |
4 × 18 |
|
DN100 |
Ø170 |
Ø205 |
513 |
445 |
4 × 16 |
|
DN150 |
Ø225 |
Ø260 |
640 |
610 |
8 × 18 |
|
DN200 |
Ø280 |
Ø315 |
770 |
700 |
8 × 18 |
|
DN250 |
Ø335 |
Ø370 |
918 |
828 |
12 × 18 |
|
DN300 |
Ø395 |
Ø435 |
1050 |
910 |
12 × 23 |
QZF-89 all-weather fire breathing valve American Standard flange connection size: ANSI, API, ASME for JIS standards
|
specification |
Installation size (mm) |
||||
|
D1 |
D |
L |
H |
Nd |
|
|
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 |
