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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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