Exhibit 23.3 CONSENT OF PERSON NAMED TO BECOME A DIRECTOR Pursuant to Rule 438 under the Securities Act of 1933, as amended (the "Act"), I hereby consent to the use of my name and any references to me as a person nominated to become a director of Dril-Quip, Inc., a Delaware corporation (the "Company"), in the Prospectus constituting a part of the Registration Statement on Form S-1 which has been filed by the Company with the Securities and Exchange Commission pursuant to the Act. Dated: August 4, 1997 /s/ James M. Alexander ----------------------------