832 OF THESE 20mm. 0-ring made of VITON
SAVE 6000 OF THESE
BY DEFYIHG CORROSIVE GAS IN HEAT EXCHANGER A ViTON®-fluoroelastomer-sealed heat exchanger has been setting a new endurance record at a leading chemical company—and an economy record to boot. Previous heat ex changers rapidly succumbed to the corrosive attack of gases containing chlorine, hydrogen chloride, sulfur dioxide and carbon tetrachloride. But not anymore. Reason? The newly designed heat exchanger has
208 glass tubes 12 feet long, and each is sealed at the tube sheets by double O-rings made of VITON fluoroelastomer. VITON has been in this service now for over two years—without a single seal failure. Cost-reduction surveys show a saving of $3000 a year in maintenance and repair. Savings total over $6000 to date and they're still going strong!
This result is not surprising. It's the habit of VITON to stand up for
years to punishment by corrosive fuels and chemicals. And hot spots rarely faze VITON. It holds its own up to 600° F. For long-range reliability—and the savings that go with it—specify rub ber products made with VITON. Write for the booklet, "Engineering Prop erties of VITON Fluoroelastomer."
VITON-A RELIABLE (DU PONT) ELASTOMER KE6. U.S. PAT.Off.
Better Things for Better Living . . . through Chemistry I. du Pont de Nemours & Co. (Inc.), Elastomer Chemicals Dept. C & EN-11-9-VM, Wilmington, Delaware 19898. In Canada, write Du Pont of Canada Ltd., 85 Eglinton Ave., E., Toronto 12, Ontario.
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