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IMI Th Jansen
Non-Return Check Butterfly Valve
Large-diameter butterfly valve for nuclear cooling and flow control applications.
Large-diameter design supports nuclear cooling systems.
Multiple actuation options ensure flexible operation.
Corrosion-resistant materials enhance durability in harsh conditions.
The IMI TH Jansen Butterfly Valve is designed for nuclear cooling water and flow control applications, handling nominal diameters up to 4000mm. Built to DIN, ISO, ASME, and international standards, it ensures tight closure in both flow directions. Multiple actuation options, including counterweight support, allow versatile installation. Constructed from carbon steel, stainless steel, and nickel aluminium bronze (NAB), it offers exceptional corrosion resistance. Designed to withstand cavitation and vibration, the IMI TH Jansen Butterfly Valve provides long-term reliability in outer cooling water circuits, process water, and steam applications.
Key features
Nuclear grade
Sizes up to 4000mm
Carbon steel, NAB, SS
Tight bidirectional sealing
Cavitation resistance
Multiple actuation options
Flanged per DIN, ISO, ASME
Installable in any position
Specifications
Design Codes
EN
Fluid Types
Liquid
Gas
Water
Steam
Material
0.7040
NiAl Bronze
1.0425
Maximum Working Pressure (barg)
40
Port Size (")
12 to 220
Temperature Limits (°C)
0 to 150
Certification
PED
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