EXHIBIT 99.1

IDEX CORPORATION REPORTS RECORD 2011 RESULTS;

ADJUSTED FOURTH QUARTER EARNINGS PER SHARE OF 65 CENTS

LAKE FOREST, IL, February 6 – IDEX Corporation (NYSE: IEX) today announced its financial results for the three- and twelve-month periods ended December 31, 2011.

Fourth Quarter 2011

New orders in the quarter totaled $447 million, up 9 percent compared to the prior-year period. Sales in the quarter totaled $481 million, 19 percent higher than the prior-year period. For the quarter, on an organic basis, sales were 7 percent higher than the prior-year period.

Fourth quarter 2011 operating income, adjusted for $9.4 million of restructuring related charges, was $85 million and resulted in adjusted operating margin of 17.8 percent, up 40 basis points from the prior year period.

Excluding the impact from restructuring related charges, fourth quarter adjusted diluted earnings per share was 65 cents, an increase of 11 cents, or 20 percent, from the fourth quarter of the prior year. Adjusted free cash flow was $73.5 million for the quarter, a 40 percent increase from the fourth quarter of the prior year and 155 percent of net income.

Full Year 2011 Highlights

“2011 was an outstanding year for IDEX; we delivered record orders, sales, free cash flow and earnings per share. Our commercial excellence efforts and focus on strategic acquisitions drove sales growth of 22 percent, up 9 percent organically. Adjusted EPS increased 29 percent and free cash flow conversion was 117 percent of net income.

Fourth quarter year-over-year operating margin improved 160 basis points when normalized for restructuring charges and the impact of the 2011 acquisitions. Cash flow came in at an impressive 155 percent of net income. Our fourth quarter organic sales grew 7 percent, which was partially attributed to several large orders that shipped from our backlog.

Our team executed well to deliver a strong fourth quarter. However, the external market environment remains volatile as we continue to see a shift to shorter order cycle patterns, including historical blanket orders being replaced by near-term orders. In spite of this, our first quarter order book has filled up nicely and we are well positioned heading into 2012.

Looking forward, we see mid-single digit organic growth in 2012. We will continue to focus on emerging regions and our high growth markets. Also, we will continue our restructuring and operational excellence efforts to consolidate our manufacturing footprint and drive productivity.

Based on our outlook for the year 2012, we forecast fully diluted EPS of $2.74 to $2.82, up 7 to 10 percent over 2011; this includes a 10 cent per share impact due to higher interest expense from the fourth quarter 2011 debt issuance. Our projected first quarter EPS is in the range of 62 to 64 cents, up 9 to 12 percent on a fully diluted basis.”

Andrew K. Silvernail

Chairman and Chief Executive Officer

Fourth Quarter 2011 Business Highlights (excluding restructuring related charges)

Fluid & Metering Technologies

Health & Science Technologies

Dispensing Equipment

Fire & Safety/Diversified Products

For the fourth quarter of 2011, Fluid & Metering Technologies contributed 44 percent of sales and 43 percent of operating income; Health & Science Technologies accounted for 35 percent of sales and 34 percent of operating income; Dispensing Equipment accounted for 5 percent of sales and 1 percent of operating income; and Fire & Safety/Diversified Products represented 16 percent of sales and 22 percent of operating income.

Reportable Segments

IDEX also is announcing the realignment of our reportable segments, including the elimination of the Dispensing Equipment segment. In 2012, the Company will include the Dispensing Equipment segment as part of the Fire & Safety/Diversified Products segment. This change more accurately reflects how we run our businesses and will align our diversified products into one segment. Effective with the reporting of our financial results for the three months ending March 31, 2012, IDEX’s reportable segments will be disclosed as:

For informational purposes, the attached table presents the company’s pro-forma quarterly and fiscal year 2011 historical financial data reflecting the new reportable segments.

EBITDA and Free Cash Flow

EBITDA means earnings before interest, income taxes, depreciation and amortization, while free cash flow means cash flow from operating activities less capital expenditures plus the excess tax benefit from stock-based compensation. Management uses these non-GAAP financial measures as internal operating metrics and for enterprise valuation purposes. Management believes these measures are useful as analytical indicators of leverage capacity and debt servicing ability, and uses them to measure financial performance as well as for planning purposes. However, they should not be considered as alternatives to net income, cash flow from operating activities or any other items calculated in accordance with U.S. GAAP, or as an indicator of operating performance. The definitions of EBITDA and free cash flow used here may differ from those used by other companies.

Conference Call to be Broadcast over the Internet

IDEX will broadcast its fourth quarter earnings conference call over the Internet on Tuesday, February 7, 2012 at 9:30 a.m. CT. Chairman and Chief Executive Officer Andy Silvernail and Vice President and Chief Financial Officer Heath Mitts will discuss the company’s recent financial performance and respond to questions from the financial analyst community. IDEX invites interested investors to listen to the call and view the accompanying slide presentation, which will be carried live on its website at www.idexcorp.com. Those who wish to participate should log on several minutes before the discussion begins. After clicking on the presentation icon, investors should follow the instructions to ensure their systems are set up to hear the event and view the presentation slides, or download the correct applications at no charge. Investors will also be able to hear a replay of the call by dialing 855.859.2056 (or 404.537.3406 for international participants) using the ID # 40912918.

Forward-Looking Statements

This news release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Exchange Act of 1934, as amended. These statements may relate to, among other things, capital expenditures, cost reductions, cash flow, and operating improvements and are indicated by words or phrases such as “anticipate,” “estimate,” “plans,” “expects,” “projects,” “should,” “will,” “management believes,” “the company believes,” “the company intends,” and similar words or phrases. These statements are subject to inherent uncertainties and risks that could cause actual results to differ materially from those anticipated at the date of this news release. The risks and uncertainties include, but are not limited to, the following: economic and political consequences resulting from terrorist attacks and wars; levels of industrial activity and economic conditions in the U.S. and other countries around the world; pricing pressures and other competitive factors, and levels of capital spending in certain industries – all of which could have a material impact on order rates and IDEX’s results, particularly in light of the low levels of order backlogs it typically maintains; its ability to make acquisitions and to integrate and operate acquired businesses on a profitable basis; the relationship of the U.S. dollar to other currencies and its impact on pricing and cost competitiveness; political and economic conditions in foreign countries in which the company operates; interest rates; capacity utilization and the effect this has on costs; labor markets; market conditions and material costs; and developments with respect to contingencies, such as litigation and environmental matters. The forward-looking statements included here are only made as of the date of this news release, and management undertakes no obligation to publicly update them to reflect subsequent events or circumstances. Investors are cautioned not to rely unduly on forward-looking statements when evaluating the information presented here.

About IDEX

IDEX Corporation is an applied solutions company specializing in fluid and metering technologies, health and science technologies, dispensing equipment, and fire, safety and other diversified products built to its customers’ exacting specifications. Its products are sold in niche markets to a wide range of industries throughout the world. IDEX shares are traded on the New York Stock Exchange and Chicago Stock Exchange under the symbol “IEX”.

For further information on IDEX Corporation and its business units, visit the company’s Web site at www.idexcorp.com.

(Tables follow)

IDEX CORPORATION

Condensed Statements of Consolidated Operations

(in thousands except per share amounts)

(unaudited)

Condensed Consolidated Balance Sheets

(in thousands)

(unaudited)

-more-

IDEX CORPORATION

Company and Business Group Financial Information

(dollars in thousands)

(unaudited)

Investor Supplement

IDEX CORPORATION

Company and Business Group Historical Financial Data Reflecting New Reportable Segments

(dollars in thousands)

(unaudited)