E SIZE and PRESSURE RANGENPS : 1/2'' - 8''for floating ball valve and wafer ball valve1/2''-4''for thread end ball valve2''-20''for trunnion mounted ball valvePressure : 150 LB - 1500 LB, PN10-PN646, ISO5211 DIRECT MOINTING PADFor ball valve connection size information, pls check our ball valve page of this website !