Y690A Series Pressure Reducing Regulators
The Y690A Series self-contained, spring-loaded regulators provide economical pressure reducing control in a variety of commercial and industrial applications. The Y690A Series design is ideally suited to control gas supply to inplant processing equipment. The rugged casings and sliding pusher post design withstand the full 150 psig (10,3 bar) inlet pressure at both the inlet and outlet connections. The sliding pusher post design prevents damage to internal parts if the downstream pressure exceeds the setpoint. Because these regulators can withstand the full inlet pressure, a downstream or internal relief valve is not required to protect the downstream side of the regulator.

Available Configurations
Type Y690A: Direct-operated pressure reducing regulator for outlet pressures up to 7-inches w.c. (17 mbar) equipped with a pitot tube for greater regulated capacities.
Type Y690AH: Direct-operated pressure reducing regulator for outlet pressures up to 7 psig (483 mbar) equipped with a pitot tube for greater regulated capacities.
Type Y690AM: Direct-operated pressure reducing regulator for outlet pressures up to 7-inches w.c. (17 mbar) equipped with a blocked throat and O-ring stem seal. The lower diaphragm casing is tapped 1/2-inch NPT screwed for control line connection.
Type Y690AHM: Direct-operated pressure reducing regulator for outlet pressures up to 7 psig (483 mbar) equipped with a blocked throat and O-ring stem seal. The lower diaphragm casing is tapped 1/2-inch NPT for control line connection.