Model 1800 in-line flow switch features all-plastic components made of PVC, an O-ring of Viton "A," and a return spring of 316 stainless steel. Process connections are standard with 1-inch slip ports and optional adapters available in 3/4 and 1/2 inch slip as well as 3/4 and 1/2 inch NPT. The unit operates by a positive displacement principle. A shuttle housing a magnet is displaced by the liquid's flow or no flow to actuate a hermetically sealed reed switch encapsulated within the stem.
Thomas Products Ltd., Flow Switch Div., 987 West St., Southington, CT 06489, FAX (860) 621-1470.
Days after a massive, distributed denial-of-service attack took down dozens of major websites around the country, ARM Holdings plc is rolling out a pair of new processor architectures aimed at shoring up IoT security.
Dow Chemical and several other companies have launched a program in Omaha, Neb. to divert about 36 tons of plastics from landfills in its first phase, and convert it into energy used for cement production.
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