Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
DIETZ DAVID F
   2. Issuer Name and Ticker or Trading Symbol
CIRCOR INTERNATIONAL INC [CIR] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
30 CORPORATE DRIVE, SUITE 200		 3. Date of Earliest Transaction (Month/Day/Year)
03/05/2018
(Street)

BURLINGTON, MA 01803-4238		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Restricted Stock Unit $ 0 03/05/2018 03/05/2018 A   1,995   04/05/2019(1) 03/05/2028 Common Stock 1,995 $ 0 1,995 D  
Restricted Stock Unit (MSP) $ 0 03/05/2018 03/05/2018 A   4,728   03/05/2021(2) 03/05/2028 Common Stock 4,728 $ 0 4,728 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
DIETZ DAVID F
30 CORPORATE DRIVE
SUITE 200
BURLINGTON, MA 01803-4238		        

Signatures

 /s/ Rajeev Bhalla, his attorney in fact   03/07/2018
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The grant of Restricted Stock Units (RSUs), reported herein, entitles the Reporting Person to receive shares of the issuer common stock either (i) at the end of a 13 month vesting period or (ii) upon the conclusion of such longer deferral period as the Reporting Person may elect in advance. In either occurrence, (i) or (ii), the RSUs automatically convert into shares of common stock on a one-for-one basis at no conversion cost to the Reporting Person.
(2) This Restricted Stock Units (RSUs) grant is issued pursuant to a provision of the issuer Management Stock Purchase Plan (MSPP) whereby certain directors may make an advance election to receive RSUs in lieu of a specified percentage or dollar amount of that directors' annual retainer. The RSUs are issued in whole units at a 33% discount from fair market value of the issuer's common stock generally on the date the underlying retainer is determined and generally vest 3 years from the date of the grant, at which time the RSUs convert into shares of common stock on a one-for-one basis unless the director previously elected a longer deferral period. The Reporting Person has elected in advance to receive RSUs in lieu of his entire annual director retainer fee of $135,000 for 2018.

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