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    Your current location: ProductsOther ValvesAll-weather Respiration Valve

    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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