October 10, 2013
Witt Gas Controls LP has introduced the Safety Group 645 for accident protection. It combines several individual safety devices and switches them in parallel to protect against the hazards of uncontrolled gas mixtures.
Two, four, or five safety devices can be combined on parallel in the fitting. The upper limits are 63,536-SCFH flow and 145-PSI maximum operating overpressure, depending on the gas type. The safety group is connected by flange (DN32-65) or internal thread on both sides (G, NPT, Rc).
Three protection elements are integrated in the system: a gas nonreturn valve, a flame arrester, and a temperature-sensitive cutoff valve. Together they prevent flashbacks and explosive mixtures from forming.
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