The IMI Thompson Valves E78AO Series is a bellows-sealed globe valve with pneumatic actuation, designed for nuclear power, aerospace, and hazardous fluid applications. Operating at up to 240 bar (3480 psi) and 300°C (572°F), it ensures positive shut-off with air-to-open and air-to-close options. A secondary gland packing enhances leak-tight performance, while the forged stainless steel body ensures durability. The E78AO Series meets ASME B&PV Section III standards and is available in threaded, butt weld, socket weld, and stub pipe connections. It is suited for high-pressure instrumentation and process control in nuclear and industrial sectors.

Key features

240 bar rating

300°C max temp

Pneumatic actuation

Bellows-sealed design

Secondary gland packing

316L stainless steel

Threaded & welded ends