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Qe Quick Exhaust (Suction) Valve

Principle
When water enters into the pipe, the plug will stop at the lower part of Locating bracket to discharge the air by a large quantity. When the air has been discharged completely, water will enter into the valve to make the ball floated, driving the plug closed and exhaust stopped. Under normal operation, there can be little gas gathered onto the upper part in pipe. When it arrives to a certain extent, the water level in valve will lower,and the float ball will lower as well, the air will be discharged out from the small hole. In case of power cut and pump stop, and when the water in pipe is emptied, there can easily cause negative pressure in pipe, and the float ball will lower along with the water. Here, the small hole will be opened, and large quantity of air will come in from the large hole, thus to ensure the safety of pipeline.
Note: it cannot be used in sewage pipeline.
Main dimensions
 
 1. Medium: clean water
2. Temperature: normal
3. Body: gray cast iron HT200
4. Float and plug: stainless steel
5. Sealing material: butadiene acrylonitrile rubber
6. Body strength test pressure: 1.5MPa
7. Sealing test pressure: 0.05-1.1MPa
 

DN(mm)
D D1 D2 L H L Z-¦µd
20 105 75 57 280 190 330 4-12
25 115 85 67 280 190 330 4-14
50 160 125 102 300 190 445 4-14
80 195 160 138 365 210 500 4-18
100 215 180 158 390 245 560 8-18
150 280 240 211 460 275 605 8-22
 








Main dimensions

DN(mm) D D1 ¦µ L H Z Z-¦µd
150 280 240 350 425 615 8 23
200 335 295 400 485 715 8 23
250 390 350 465 540 880 12 23
300 440 400 400 510 990 12 23
400 565 515 515 656 750 1100 10









Choose exhaust valves of different specifications according to the diameters
of pipe, which can be referred to the table below.
DN Exhaust Valve 25 50 80 100 150 200 250 300 350 400
Transmission pipes 100-250 300-450 500-700 800-1000 1200-1500 1600-2000 2200-2600 2800-3400 3600-3800 4000-4500







Material components
No Name Material
1 Body HT 200
2 Bonnet HT 200
3 Float Ball 304 Stainless Steel
4 Locating Bracket Stainless Steel
5 Lever H59 Brass
6 Plug Stainless Steel 

Adds£ºJinnan Industrial Park, Tianjin, China ¡¡Tel£º+86 22 88971536 ¡¡Fax£º+86 22 88971536
Copyright level sensors and flow meters Tianjin U-ideal Instrument Co., Ltd ( Hebei Xukang Meter Manufacturing Co.,Ltd) all right reserved.

Tianjin U-ideal Instrument co., ltd is one of esteem company with collection of scientific research, development and sales. We have abundant technical capacity, special scientific research teams with advanced producing and checkout equipment.

Tianjin U-ideal Instrument Co., Ltd produce and sell Magnetic Level Indicator, bi-color quartz glass tubular level gauge, liquid level switch, float switch, level sensor, level transmitter, level switch, tank gauge, water gauge, liquid level instrument, ultrasonic level sensor, flow meter, PD flow meter, oval gear flow meter, dual-rotor turbine flowmeter, duplex rotor meter, vortex flow meter, turbine flowmeter, electromagnetic flowmeter, metal rotary flow meter and valves,oil/water industrial control systems.

We are TIANJIN U-IDEALINDUSTRIES COMPANY , have accumulated abundant experience especially in high temperature and high pressure liquid level meters ,and antiseptic liquid level gauge .we also made to orders of non-standard liquid level meters to satisfy different customers .those products has been used by many enterprises of all walks of chemical,industries, petroleum ,electricity, food, light, medicine, metallurgy, papermaking etc.. and our products have been certified by quality system ISO9001£º2000.

Tianjin U-ideal Instrument Co. are also engaged in flowmeter trade. Such as gas flowmeter and liquid flowmeter with the type of explosion-proof and others.

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