What type of valve is a venturi?
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What is the working principle of the Venturi hydrophobic valve mentioned now? Is it also a mechanical steam trap? Is there a big difference between float-type steam traps and venturi steam traps?
A venturi increases the bulk flow velocity by reducing the cross-sectional area through which the fluid flows
Thank you! Does that mean that a Venturi would be more suitable if continuous drainage is required?
It’s two different concepts: the Venturi hydrostatic valve is likely a secondary steam hydrostatic valve, while the float-type one is a drain valve.
The company is currently using float-type valves. Recently, other suppliers have recommended this type of Venturi-type hydrophobic valve; since I’m not very familiar with it, I had only heard of this approach before but never understood how it works
Isn’t a venturi just a valve outlet with its pipe wall made thicker?
The Venturi drain valve utilizes a throttle orifice to accurately determine the points at which condensate and steam are present in the equipment, and it relies on this throttle orifice to control the drainage from the drain valve. It is suitable for situations where pressure and steam flow rates are very stable; if these rates fluctuate, it is difficult to achieve precise drainage with a fixed throttle orifice. The throttle orifice also expands due to the scouring by condensed water, which leads to a lack of proper drainage; therefore, it is necessary to replace the throttle orifice at regular intervals.
No, its working principle seems different from that of the other types
That is the orifice plate trap – it’s a more advanced version of the venturi trap
It should belong to the thermodynamic type of steam trap; in comparison, the ball-type type is likely to perform better in terms of flow rate and energy efficiency.