Which gate valve is better?

Author: Harry

Aug. 12, 2024

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Tags: Mechanical Parts

Which gate valve is better?

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If you want to learn more, please visit our website BSTV.

The following expert spindle checks require additional testing which may or may not be provided by the manufacturer:
 

Want more information on Gate Valve? Feel free to contact us.

Tip 6: Spindle material

  • Confirm that the spindle material of the gate valve matches what is claimed by the manufacturer. This can be done using a spectrometer, which provides a break-down of a material&#;s chemical composition.
     
  • Based on the chemical composition, you can then calculate or look up the pitting resistance equivalent number (PREN), a reliable indicator for through-wall corrosion resistance. As a general rule, if you are unsure about the corrosivity of the water and/or the soil around your valve, you should choose a spindle material with a PREN value of 25 or greater.

The spindles of Hawle E3 gate valves are cold-rolled, also on the shaft, thereby achieving extremely smooth surfaces. This preserves the wedge nut as well as the spindle sealing O-rings.

 

For more Flange Ball Valve Factoryinformation, please contact us. We will provide professional answers.

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