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ZFQ-1 all weather explosion-proof fire resistant breathing valve

ZFQ-1 all weather explosion-proof fire resistant breathing valve

Introduction: ZFQ-1 explosion-proof fire-proof breathing valve produced by our company is a relatively new product in China. It is a new product with flame arrester and breathing valve. Its new structure is the first in China. It is a necessary safety equipment for petrochemical storage tank. Its biggest advantages are good fire resistance, stable suction performance, simple structure, light weight and convenient maintenance. The product is suitable for storage of class a oil with flash point lower than 28 ℃ and class B oil with flash point lower than 60 ℃, such as gasoline, kerosene, diesel oil, crude oil, toluene, ethanol, aromatics, sulfur and other media tanks. It works normally in the temperature environment of -35 ℃ -60 ℃.

  • Item NO.:

    XUVAL77-29
  • Lead Time:

    45Days
  • Product Orgin:

    CHINA
  • Brand:

    XUVAL
  • Shipping Port:

    Shanghai
  • Payment:

    100%TT
  • Color:

    blue
  • MOQ:

    10
Products Details
Characteristic:
1. The product has reasonable structure, beautiful appearance, shell: cast iron, cast steel, stainless steel, cast aluminum alloy, good corrosion resistance.
2. The valve disc and seal ring are made of polytetrafluoroethylene, with good low temperature resistance and antifreeze performance. The resistance layer core is made of stainless steel, with strong corrosion resistance, fire resistance, explosion resistance and other technical performance, which has outstanding advantages.
3. The valve is a ventilation and fire resistance device installed on the fixed roof tank, which can reduce the evaporation loss of storage materials and control the pressure effect of the tank. Its function allows flammable and explosive gases to pass through and has the effect of preventing suffocation on the flame.
4. The valve has the characteristics of large ventilation, small leakage, corrosion resistance and good antifreeze.
5. It can automatically adjust the pressure difference between inside and outside the tank.

6. The fire resisting layer is easy to repair, clean and install. It is unnecessary to dismantle the breathing valve during inspection.


Performance:

1. The low temperature resistance and antifreeze performance are qualified, and the pressure disc, vacuum valve disc and sealing ring are free of deformation after operating at - 42 ℃ for 2 hours, which fully meets the design requirements.
2. It can be operated continuously for 72 hours at 36 ℃ for 10000 times. The contact surfaces of pressure valve disc, vacuum valve disc and guide rod have no signs of wear and bruise, and the guide rod is sensitive to rise and fall without jamming.
3. The results show that the explosion resistance is qualified, and the fire resistance is successful in 13 consecutive explosion resistance tests.
4. The fire resistance is qualified.


Specification and dimension table:

Specifications
Installation dimension
D D1 L H H1 n-Ø
DN50  Ø140 Ø110 Ø170 299 157 4-Ø14
DN80 Ø185 Ø150 Ø235 340 178 4-Ø18
DN100 Ø205 Ø170 Ø265 376 185 4-Ø18
DN150 Ø260 Ø225 Ø240 457 210 8-Ø18
DN200 Ø315 Ø280 Ø280 600 243 8-Ø18
DN250 Ø370 Ø335 Ø450 690 283 12-Ø18
Note: the connecting flange meets the requirements of jb78-59 "cast iron flange".

Product structure chart:


Maintenance and repair:
In order to ensure that the performance of the new all-weather explosion-proof breathing valve can be fully used, the breathing valve and fire resistance layer should be inspected within half a year.
1. Check whether the action of pressure valve disc and vacuum valve disc is sensitive, and whether the contact surface of guide rod and valve seal ring is damaged.
2. When re installing the pressure valve disc, make sure that the contact surface is tight and the guide rod rises and falls sensitively.
3. When a new breathing valve is used, the shockproof material of the valve disc must be removed.
4. Check whether the core of fire retardant layer is blocked, deformed, corroded, etc.
5. Check that the blocked fire retardant layer core should be cleaned to ensure that each hole on the core is unblocked, and the deformed and corroded fire retardant layer should be replaced in time.
6. When re installing the core of fire retardant layer, it should be ensured that the combination is tight without air leakage.


Packing & Delivery : 

Packing Details:all by seaworthy plywood case and packed strongly by packing belt as below
Delivery Details:Generally it is 5-10 days if the goods are in stock. or15-30 days if the goods are OEM or not
enough subject to the order quantity. But anyway, normally, we are able to make sure the delivery will not exceed 45days.



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