Series 31B
Check Valves
Overview
Threaded end connections swing style design with threaded bonnet. carbon steel,
1″ thru 4″ • 300, 750, 1500, & 2220 psi MOP
1″ thru 3″ • 3000 psi MOP
1″ only • 5000 psi MOP
1”-4”, MOP 300, 750, 2200, 3000 & 5000 psi
Threaded, Single Disc, No Spring Assist
NACE MR0175/ISO 15156