Could you let me know the maximum allowable velocity in pipe in your country?

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I wonder the allowable maximum velocity in pipe in other countries.

In Korea, the maximum velocity is 3.0m/sec but I guess it can be increased when we use erosion resistant materials like steel or PVC. I found some countries like Hong Kong, some states in US allow more than 3.0m/sec (ex: 4.5 or 6.0m/sec)

It will be very appreciated all of you let me know the allowable maximum velocity in pipe. If possible, send me your design standard document to my e-mail.

e-mail: yscatfish96@gmail.com or yscatfish@hanmail.net

Thanks in advance.

Best regards,

Yongseok CHOI

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