UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): September 25, 2017

CIRCOR INTERNATIONAL, INC.

(Exact name of registrant as specified in its charter)

DELAWARE	001-14962	04-3477276
(State or Other Jurisdiction of Incorporation or Organization)	(Commission file number)	(I.R.S. Employer Identification No.)

30 CORPORATE DRIVE, SUITE 200

BURLINGTON, MASSACHUSETTS 01803-4238

(Address of principal executive offices) (Zip Code)

(781) 270-1200

(Registrant's telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933(§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging Growth Company o

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

o

Item 7.01. Regulation FD Disclosure.

On September 25, 2017, CIRCOR International, Inc., a Delaware corporation (the “Company”), issued a press release announcing the execution of a definitive agreement providing for the acquisition of the fluid handling business of Colfax Corporation, a Delaware corporation, by the Company and announcing a conference call to discuss the acquisition on September 25, 2017 at 9:00 a.m. EDT. A copy of the press release and a copy of the investor presentation to be used on the conference call are furnished as Exhibits 99.1 and 99.2, respectively, to this Current Report on Form 8-K.

The information in this Item 7.01 of Form 8-K and the Exhibits 99.1 and 99.2 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities and Exchange Act of 1934 (the “Exchange Act”) or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Exchange Act, except as expressly set forth by specific reference in such a filing.

Item 9.01. Financial Statements and Exhibits

(d) Exhibits

Exhibit No. Description of Exhibit

99.1 Press release dated September 25, 2017

99.2 Investor Presentation dated September 25, 2017

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: September 25, 2017CIRCOR INTERNATIONAL, INC.

/s/ Rajeev Bhalla

Rajeev Bhalla

Executive Vice President and Chief Financial Officer