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IMI Thompson Valves
E78D, E78H series AO/AC Bellows sealed globe valve
Pneumatic bellows-sealed globe valve for high-pressure and nuclear applications.
Pneumatic actuation allows remote operation in critical environments.
Bellows-sealed design prevents leaks and ensures pressure containment.
Handles hazardous fluids under high pressure and extreme temperatures.
Features
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
Specifications
Fluid Types
Water
Steam
Heavy Water
Gas
Hydrogen
Boric Acid
Corrosive Fluids (Acids & Caustics)
Liquid
Port Size (")
0.25 to 0.75
Maximum Working Pressure (barg)
240
Material
SS 316L
SA182-F316L
Z2CND17.12
Design Codes
ASME Sec. III
Temperature Limits (°C)
0 to 300
