ASCO

Solenoid valves are what the ASCO name stands for. The brand goes back to 1888 and is based in Florham Park, USA, and its valves pilot actuators, switch instrument air and control water, steam and light oil in almost every kind of plant. Seven Star LLC sources and supplies ASCO solenoid valves for process and utility service in Oman. Current production is labeled Emerson ASCO, so both names appear in catalogs and on nameplates.

ASCO solenoid valve series listed here

Three series are listed. The ASCO 8210 series is a two-way, pilot-operated general service valve for air, water and light oil. The ASCO 327 series is a direct-operated three-way valve widely used to pilot the actuators of process valves, including shutdown valves. The ASCO 551 series is a pilot-operated spool valve with a NAMUR interface that mounts directly on quarter-turn pneumatic actuators.

Ordering ASCO valves: what we need

Send the complete catalog number from the nameplate, including prefix and suffix letters, since these define the solenoid enclosure, coil and seal options. Add the coil voltage and frequency, pipe size and thread, body material, the fluid, the minimum and maximum operating pressure differential, and whether the valve is normally closed, normally open or universal. For hazardous areas, state the protection type required. Buyers in the GCC often add ambient temperature, which affects coil selection.