EXHIBIT 99.1

IDEX CORPORATION REPORTS FIRST QUARTER 2011 RESULTS;
EARNINGS PER SHARE OF 57 CENTS

LAKE FOREST, IL, April 20 — IDEX Corporation (NYSE: IEX) today announced its financial results for the three-month period ended March 31, 2011.

New orders in the quarter totaled $442 million, up 19 percent over the prior-year period. Sales in the quarter totaled $427 million, 20 percent higher than the prior-year period.

First quarter 2011 operating income was $78 million, resulting in an operating margin of 18.2 percent, up 140 basis points from the prior year (excluding prior-year restructuring-related charges) due to higher volume and improved productivity. First quarter operating income was negatively impacted by approximately $2.6 million of acquisition-related costs and charges.

First quarter diluted earnings per share was 57 cents, an increase of 11 cents, or 24 percent, from the first quarter of the previous year (excluding prior year restructuring-related charges).

Highlights

•		Orders increased 19 percent compared to the prior year (+11 percent organic, +7 percent acquisition and +1 percent foreign currency translation).
•		Sales increased 20 percent compared to the prior year (+12 percent organic, +7 percent acquisition and +1 percent foreign currency translation).
•		Net income of $48 million was $10 million, or 27 percent, higher than the prior-year adjusted net income and $11 million, or 31 percent, higher than the prior-year reported net income.
•		Diluted EPS of $0.57 was 11 cents, or 24 percent, higher than the prior-year adjusted EPS and 12 cents, or 27 percent, higher than the prior-year reported EPS.
•		EBITDA of $92 million was 22 percent of sales and covered interest expense by more than 14 times.
•		Free cash flow was $20 million, further enhancing the strength of the balance sheet. Net debt-to-EBITDA improved to 1.0x.

First Quarter 2011 Business Highlights

Fluid & Metering Technologies

	•		Sales in the first quarter of $195 million reflected a 17 percent increase compared to the first quarter of 2010 (+15 percent organic and +2 percent acquisitions).
	•		Operating margin of 20.6 percent represented a 180 basis point improvement compared with the first quarter of 2010 as we leveraged higher volumes, managed material inflation impact through sourcing initiatives and strategic pricing, and controlled our operating expenses.

Health & Science Technologies

	•		Sales in the first quarter of $134 million reflected a 43 percent increase compared to the first quarter of 2010 (+19 percent organic and +24 percent acquisitions).
	•		Operating margin of 23.3 percent represented a 160 basis point improvement compared with the first quarter of 2010 primarily due to volume leverage and improved mix profile with new products and increased content on OEM platforms.

Dispensing Equipment

	•		Sales in the first quarter of $32 million reflected a 4 percent decrease compared to the first quarter of 2010 (-5 percent organic and +1 percent for foreign currency translation) due to prior-year North American replenishment program.
	•		Operating margin of 17.5 percent was 260 basis points lower than the first quarter of 2010 as lower volumes were partially offset by productivity and cost initiatives.

Fire & Safety/Diversified Products

	•		Sales in the first quarter of $67 million reflected a 5 percent increase compared to the first quarter of 2010 (+4 percent organic and +1 percent for foreign currency translation).
	•		Operating margin of 23.2 percent represented a 200 basis point improvement compared with the first quarter of 2010 primarily due to volume leverage and favorable product mix.

For the first quarter of 2011, Fluid & Metering Technologies contributed 46 percent of sales and 43 percent of operating income; Health & Science Technologies accounted for 31 percent of sales and 34 percent of operating income; Dispensing Equipment accounted for 7 percent of sales and 6 percent of operating income; and Fire & Safety/Diversified Products represented 16 percent of sales and 17 percent of operating income.

IDEX Closes on Microfluidics

On January 25, 2011 IDEX announced a tender offer for Microfluidics International Corporation. On March 11, 2011, IDEX announced the final completion of the tender offer, and the completion of the acquisition of Microfluidics. Microfluidics will operate within IDEX’s Health and Science Technologies segment as a part of the Pharma products platform.

Conference Call to be Broadcast over the Internet

IDEX will broadcast its first quarter earnings conference call over the Internet on Thursday, April 21, 2011 at 9:30 a.m. CT. Chairman and Chief Executive Officer Larry Kingsley 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 800.642.1687 (or 706.645.9291 for international participants) using the ID # 56253366.

A Note on 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.

EBITDA and Free Cash Flow bridge

		For the Quarter Ended
		March 31,												December 31,
		2011				2010				Change				2010				Change
à Income before Taxes		$	70.4			$	54.7				29	%		$	60.6				16	%
à Depreciation and Amortization			15.6				14.3				9				13.2				18
à Interest			6.4				3.4				88				5.0				30
à EBITDA		$	92.4			$	72.4				28			$	78.8				17
à Cash Flow from Operating Activities		$	29.4			$	27.1				8	%		$	25.4				16	%
à Capital Expenditures			(11.4	)			(7.5	)			52				(5.7	)			100
à Excess Tax Benefit from Stock-Based Compensation			2.3				0.5				n/a				1.9				25
à Free Cash Flow		$	20.3			$	20.1				1			$	21.6				(6	)

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)

		Three Months Ended
		March 31,
		2011				2010
Net sales		$	427,089			$	355,598
Cost of sales			248,389				208,057
Gross profit			178,700				147,541
Selling, general and administrative expenses			100,979				87,781
Restructuring expenses			—				1,867
Operating income			77,721				57,893
Other income (expense) — net			(907	)			254
Interest expense			6,454				3,434
Income before income taxes			70,360				54,713
Provision for income taxes			22,409				18,088
Net income		$	47,951			$	36,625
Earnings per Common Share:
Basic earnings per common share (a)		$	0.58			$	0.45
Diluted earnings per common share (a)		$	0.57			$	0.45
Share Data:
Basic weighted average common shares outstanding			81,430				80,080
Diluted weighted average common shares outstanding			83,248				81,509

Condensed Consolidated Balance Sheets
(in thousands)
(unaudited)

		March 31,				December 31,
		2011				2010
Assets
Current assets
Cash and cash equivalents		$	195,548			$	235,136
Receivables — net			242,177				213,553
Inventories			215,650				196,546
Other current assets			50,632				47,523
Total current assets			704,007				692,758
Property, plant and equipment — net			199,703				188,562
Goodwill and intangible assets			1,545,591				1,488,393
Other noncurrent assets			16,127				11,982
Total assets		$	2,465,428			$	2,381,695
Liabilities and shareholders’ equity
Current liabilities
Trade accounts payable		$	107,415			$	104,055
Accrued expenses			118,493				117,879
Short-term borrowings			102,801				119,445
Dividends payable			—				12,289
Total current liabilities			328,709				353,668
Long-term borrowings			415,383				408,450
Other noncurrent liabilities			248,350				243,917
Total liabilities			992,442				1,006,035
Shareholders’ equity			1,472,986				1,375,660
Total liabilities and shareholders’ equity		$	2,465,428			$	2,381,695

-more-

IDEX CORPORATION
Company and Business Group Financial Information
(dollars in thousands)
(unaudited)

		Three Months Ended
		March 31,
		2011(b)				2010(f)
Fluid & Metering Technologies
Net sales		$	195,273			$	167,108
Operating income (c)			40,237				31,359
Operating margin			20.6	%			18.8	%
Depreciation and amortization		$	7,969			$	7,726
Capital expenditures			3,467				3,594
Health & Science Technologies
Net sales		$	133,635			$	93,291
Operating income (c)			31,114				20,266
Operating margin			23.3	%			21.7	%
Depreciation and amortization		$	5,013			$	3,811
Capital expenditures			3,339				1,478
Dispensing Equipment
Net sales		$	32,158			$	33,554
Operating income (c)			5,639				6,754
Operating margin			17.5	%			20.1	%
Depreciation and amortization		$	1,023			$	1,033
Capital expenditures			424				213
Fire & Safety/Diversified Products
Net sales		$	66,729			$	63,401
Operating income (c)			15,503				13,423
Operating margin			23.2	%			21.2	%
Depreciation and amortization		$	1,319			$	1,452
Capital expenditures			1,260				864
Company
Net sales		$	427,089			$	355,598
Operating income (d)			77,721				59,760
Operating margin			18.2	%			16.8	%
Depreciation and amortization (e)		$	15,622			$	14,284
Capital expenditures			10,084				7,350