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These valves, in sizes from 1/8" to 1/2" NPT, can be capable of 414 or 690 barg. Small valves in ductile iron or brass, 1/4" to 2", with PTFE seats and seals can operate between -20oC and 160o C with pressures up to 64 barg. Similar valves in cast steel are suitable for-40oC to 230oC at pressures up to 100 barg. ................
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