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IMI Thompson Valves
E77K Type 174 Mk1 AO - 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 E77K Series is a bellows-sealed globe valve with pneumatic actuation, designed for nuclear power, aerospace, and hazardous fluid applications. Operating at up to 210 bar (3045 psi) and 300°C (572°F), it ensures positive shut-off with a non-rotating valve disc. A secondary gland packing enhances leak-tight performance, while the forged stainless steel body provides durability. The E77K Series meets ASME B&PV Section III standards and supports air-to-open and air-to-close actuation. It is available in threaded, butt weld, socket weld, and stub pipe connections for instrumentation and process control in nuclear and industrial sectors.
Key features
210 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 (")
0.75 to 1.5
Maximum Working Pressure (barg)
210
Material
SS 316L
SA182-F316L
Z2CND17.12
Design Codes
ASME Sec. III
Temperature Limits (°C)
0 to 300
