Operating Temperature Regulators - Type DB & DS Double Seat, Balanced Owner's manual

CAUTION: Do not exceed maximum pres-

sure differentials for given valve sizes. The

maximum differential is the pressure the

valve has against it at shutoff. Too large a

differential can cause valve chatter and/or

prevent shutoff.

Steam Capabilities ■

Use a pressure drop of 50% of absolute inlet pressure (gauge pressure + 15 psi) for steam applications.