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Gas exhaust valve

Gas exhaust valve

The exhaust valve is used for pipeline exhaust in independent heating systems, centralized heating systems, heating boilers, central air conditioning, floor heating, and solar heating systems. Because water usually contains a certain amount of air, and the solubility of air decreases with the increase of temperature, gas gradually separates from the water during the circulation process and gradually gathers together to form large bubbles or even gas columns. Due to the supplementation of water, gas is often generated.

  • Item NO.:

    XUVAL33-228
  • Lead Time:

    50 Days
  • Product Orgin:

    CHINA
  • Brand:

    XUVAL
  • Shipping Port:

    Shanghai
  • Payment:

    100%TT
  • MOQ:

    10
Products Details

This product is used to remove gas from the highest point or closed area of the pipeline to unblock the pipeline, ensure normal operation of the pipeline, and ensure that the water output meets the design requirements. If this product is not installed, the gas in the pipeline will form an air resistance, which will cause the water output of the pipeline to fail to meet the design requirements. When a power outage occurs during the operation of the pipeline, negative pressure may occur at any time when the pump is stopped, which can cause pipeline vibration or rupture. The exhaust (suction) valve quickly sucks in a large amount of air to prevent pipeline vibration or rupture and ensure pipeline safety.


Main technical parameters:
Nominal pressure 1.6MPa
Strength test 1.76MPa
Sealing test 2.4MPa
Applicable Medium Water, steam, oil products
Temperature 100℃

Floating ball exhaust valve

This is the earliest produced intake and exhaust valve, which generally cannot automatically exhaust when the pressure is greater than 0.1 0.2 MPa. It can only be used for intake and exhaust after the first water filling or accident maintenance. The intake and exhaust speed is slower than other forms, and is only suitable for situations where the intake and exhaust volume is not large.


Folding float lever exhaust valve

Improved on the basis of a floating ball (cylinder) exhaust valve. Through the principle of leverage, it is possible to exhaust even under high pressure, with a maximum exhaust pressure generally not exceeding 0 08 MPa. The above two types of exhaust valves have simple structures, but they have certain defects. When water and gas are separated, the large exhaust port can only discharge the first section of gas and cannot continuously exhaust. When the slope of the water pipeline is not large, the pipeline is mostly in a plunger flow state of water and gas.



Folding cylinder exhaust valve

The cylinder type exhaust valve is a new type of intake and exhaust equipment that has only emerged in recent years. It is a new device made based on the principle of the cylinder, which is different from any other intake and exhaust valve. Its principle is to use a float lever to control the pneumatic diaphragm action inside the cylinder, thereby controlling the opening and closing of the valve body exhaust port. Under high pressure (below 1MPa), both pressurized and non pressurized gases can be discharged at high speed, regardless of whether it is between multiple water columns or gas columns.



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