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E-mail
zshfm@zshvalve.com
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Phone
021-66516999
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Address
No. 3360 Middle Market Road, Shanghai
Product Categories
Sinopec Shanghai Valve Manufacturing Co., Ltd.Free·1YRS
Breathing valve
NegotiableUpdate on July 04
- Model
- Nature of the Manufacturer
- Other
- Product Category
- Respiration valve, Flame arrester
- Place of Origin
- City, Province
Overview
Breathing valve
Product Details
ZFQ-1 type all weather explosion-proof fire breathing valve. . It is a new type of safety equipment for petrochemical tanks, the advantage is the fire breathing performance is good, light weight, convenient maintenance. The product is suitable for storage in a point below 28 DEG C and B oil oil flash point below 60 DEG C, such as gasoline, benzene, toluene, kerosene, light diesel oil, engine oil, crude oil and the properties of the same chemical product tank use, it works in the temperature of -60 DEG C in -35 environment.
Shell selection of cast steel and aluminum alloy, good corrosion resistance;
The corrugated fire resistant layer is made of stainless steel, which has good corrosion resistance and good corrosion resistance;
The structure is simple, easy to repair, safe and convenient;
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 |
Operating pressure Pa | -295~98000 -30mmH2O~+10000mmH2O |
The corrugated fire resistant layer is made of stainless steel, which has good corrosion resistance and good corrosion resistance;
The structure is simple, easy to repair, safe and convenient;
A positive pressure | 355Pa (36 mm water column) |
negative pressure | 295Pa (30mm water column) |
B positive pressure | 980Pa (100mm water column) |
negative pressure | 295Pa (30mm water column) |
C positive pressure | 1765Pa (180mm water column) |
negative pressure | 295Pa (30mm water column) |
Standard flange connection outline dimensions： GB、JB
Specifications | Installation dimensions（mm） | ||||
D1 | D | D3 | H | M-h | |
DN50 | Ø110 | Ø140 | 160 | 255 | 4×12 |
DN100 | Ø170 | Ø205 | 235 | 480 | 4×16 |
DN150 | Ø225 | Ø260 | 295 | 547 | 8×16 |
DN200 | Ø280 | Ø315 | 355 | 658 | 8×16 |
DN250 | Ø335 | Ø370 | 420 | 705 | 12×16 |
Breathing valve flange size American Standard：ANSI、API、ASME Available for JIS standard
Specifications | Installation dimensions（mm） | ||||
D1 | D | D3 | H | M-h | |
2" | 120.5 | 152 | 160 | 255 | 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 |
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