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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 product details

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.

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