Using WCB material.Fully consider corrosion allowance, minimum shell wall thickness, pressure and temperature grade when design-ing
Single valve seat and flexible closing system are adopted to ensure super long service life and closing accuracy.
Structure with pressure equalizing balance pipeAir blockage
The flawless laser-welded floating ball ensures the long working life of the steam trap
It can effectively prevent pipeline impurities from entering the valve, ensuring the normal operation of the trap, and prevent water hammer from damaging internal components.
Precisely calculated floating ball component structure makes the closing system work under water seal without steam leakage.
The basic concept of air trap is an automatic device that discharges the water (or liquid) in the air storage tank, gas equipment and non condensable gas pipeline through the drain valve without gas leakage. The drainage of air pipeline is called air trap, and using in non condensable gas pipeline is called drain valve.
long life, good energy-saving effects, water hammer resistance, and beautiful appearance. They are widely used in compressed air or non-condensable gas tanks, pipelines and air separation equip-ment.The technical advantages of VMV traps are unique and reasonable structure and high-precision internals!
VMV applies the flexible closing system to air trap, which solves the problems of short life-time and bad sealing. In the design, factors such as shell strength, pressure and tempera-ture grade, casting processability, fluid flow path, impact caused by water and vapor mixing, closing of the auxiliary water seal, and the strength of the valve cover gasket affected by the low temperature environment are fully considered.
Air trap relies on the density difference between steam and condensate to work. When the valve body is full of non-con-densable gas, the gas is discharged through the balance pipe,and the water enters the trap. The floating ball moves up and drives the valve core to open. After discharging the condensed water, the floating ball drives the valve core to move down and closes the drain valve.
Air trap has the following advantages,long life, reliable operation,convenient maintenance, no original steam leakage.The greatest advantage of the air trap is can work under pressure as low as 0.1bar.
The air trap is made of ASTM216
WCB cast steel, part of the valve cover is made
of ASTM A105, the internals are made of stainless steel, with built-in filter.
• Nominal pressure: PN25;
• Maximum allowable temperature: 200°C/2.45MP;
• Maximum working pressure:2.5MPa;
• Maximum working temperature: 200°C;
• Connection type: thread RC or flange (GB/T 9115.1-2000; HG/T20615-2009; HG/T20592-2009,
The air trap can drain water continuously. It is suitable for discharging water or liquid from gas transmission pipeline, gas storage tank and air separation unit. Generally, the safety factor is 2-3 times when selecting models.The displacement of air trap increases with the increase of pressure difference. Check the displacement curve in detail.
Special reminder: Please do not mistakenly think that the large diameter trap with large displace-ment.
The air trap is installed horizontally at the bottom of the pipeline or equipment, being equipped with pressure equalizing and balancing pipe and flange as leaving factory-(PN25,DN10 RF)
The basic configuration is showm on the graph
Installation method: remove the upper plug,screw on the balance pipe with flange, and connect the air inlet pipe and balance pipe.
Zhejiang Newton Fluid Control Co.,Ltd.
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