"and the CDS Temperature Switch, having 1/8" NPT threads, is installed in the WELL. The use of a WELL will not change the switch setting, but it may ..." spracherprecision.com
"Georg Fischer E-Catalog: Type 546 CPVC Ball Valve With mounting inserts / With solvent cement sockets inch ASTM Including 2 threaded union ends NPT..." georgfischer.com