The 971 Series is a 10-inch (DN 250) top-entry, pilot-operated pressure reducing regulator that uses the combination of the PRX Series and Type SA/2 pilot supply regulator as its piloting system to give a operating pressure range of 7.3 to 1015 psig (0,5 to 70 bar). The 971 Series can operate at high inlet pressure up to 1450 psig (100 bar) and high-pressure drops.
