GFQ-11 All-weather Respiration Valve
Product overview
Product model: GFQ-11
Nominal diameter: DN25~250mm (1"~10")
Operating temperature: -30~60℃
Main material: carbon steel WCB, stainless steel 304, 316, aluminum alloy
Application scope: gasoline, stupid, stupid, kerosene, light diesel oil, oil, crude oil and other oil products and chemical products with the same nature tank
Connection type: flange connection (II) internal thread connection (III) external thread connection (IV)
Design standard: GB5908-86, GB1347-92
Flange standard: HG 20592-97, ANSI B 1.6, GB HGJ SH JB
GFQ-11 All-weather Respiration Valve Scope of application
GFQ-11 All-weather Respiration Valve produced and sold by Baigang valve group is suitable for storing Class A oil
with flash point D at 28 ℃ and class B oil with flash point D at 60 ℃,
such as gasoline, stupid, stupid, kerosene, light diesel oil, engine
oil, crude oil, etc. Oil products and properties of the same chemical
storage tanks. Can be used with the new corrugated flame arrester.
GFQ-11 All-weather Respiration Valve instructions for use
Breathing
valve installed in the top of the tank, is to solve the positive
pressure tank, negative pressure gas, the tank of liquid access is not
hindered, when the external liquid into the tank when a large number of
gas out call (called positive pressure) . If the tank liquid output when the tank must be drawn into the tank from the outside air (called negative pressure). Stop
breathing when the valve is automatically closed will not leak the
liquid gas tank, so that the liquid inside the tank has been a good
guarantee.
GFQ-11 All-weather Respiration Valve maintenance and servicing
For the safety of the breathing valve, check whether the guide rod and the valve plate are flexible before use. This
valve should be regularly (within 6 months) check the positive and
negative valve disc is flexible, valve disc contact surface for damage,
if damaged should be overhaul immediately. After maintenance, everything is normal and can be reused.
GFQ-11 All-weather Respiration Valve main technical parameters
| aJ positive pressure | 355pa (36mm water column) |
| Negative pressure | 295pa (30mm water column) |
| b-level pressure | 980pa (100mm water column) |
| Negative pressure | 295pa (30mm water column) |
| c-class pressure | 1765pa (180mm water column) |
| Negative pressure | 295pa (30mm water column) |
GFQ-11 All-weather Respiration Valve Parts and materials
| Body material | Carbon steel wcb, stainless steel 304,316, aluminum |
| 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 |
GFQ-11 All-weather Respiration Valve GB flange connection Dimensions: gb, jb
|
specification |
Installation size (mm) |
||||
|
d1 |
d |
d3 |
h |
mh |
|
| 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 |
GFQ-11 All-weather Respiration Valve API flange connection Dimensions: ansi, api, asme for jis standard
|
specification |
Installation size (mm) |
||||
|
d1 |
d |
d3 |
h |
mh |
|
| 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 |
Reminder:
All text, data and pictures in this article are for reference only.To see more details of the GFQ-11 All-weather Respiration Valve performance parameters, structural dimension parameters, pricing, etc., or to request high quality printing samples, please Contact us.
Headquarters Tel: +86-021-57278880
Sales Tel: +86-021-57278881
Fax: +86-021-57278882
E-mail: baigangvalve@163.com
Site: lhwkh.cn
Add: Tinglin Industrial Park, Jinshan District, Shanghai
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