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5.6 Rotors
5.6.1 Rotors shall conform to clause 5.6 in ISO 13709-2003(API Std 610-2004).
5.6.2 When the impeller tip speed values exceed the limit values shown in Table 2,the vendor shall provide the design parameters,material documents,and design standards to the purchaser for approval.
Table 2 Limit values for impeller tip speed
