triple offset
butterfly valve bv03

The use of the IVALTEC valve is particulary adapted to the following industrial applications : vapor application (thermal power plants, desalination sea water and district heating), oil, petrochemistry, cryogenics, factories of ansformation processing...
Design :
The following two main functions of IVALDISC can be used independently or simultaneously :
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On/off valve
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Bidirectional zero leaks according to API 598, EN12266-1
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no retention area
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intrinsic fire safe
2. Regulation valve
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Bidirectional zero leaks according to ANSI/FCI 70-2 Class VI
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High flow coefficient (Kv, CV)
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Important regulation coefficient
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Characteristic of exponential flow (equal percentage) and linear between 60 and 80 opening degrees
Performances :
The valve can be used in very difficult service conditions.
Temperature from -196°C to 800°C
Pressure : until 250 bars
Tightness : Bidirectional zero leaks according to API 598, EN12266-1 and ANSI/FCI 70-2 Class VI regulation's
Coefficients = 100
Range :
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DN80 - 3200
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Pressure PN10 to PN250
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Class PN10 to PN250
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ANSI150LB to ANSI 1500LB
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Working temperature : -196°C - +800°C
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Types of body : wafer, lug, flanged, welded ends
Design advantages :
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Metal/Metal tightness by direct press without jamming of the butterfly ring on the sea (butterfly valve said "eccentric")
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The closing position is ensured directly by the metal Seat's reaction on the disc metal ring (tight closure security)
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All contact points of the disc ring quit seat surface, at the same time, from the first degree of opening :
No friction = No usury = longevity of use
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Better ratio mass-face-to-face / nominal diameter than other types of metal/metal valves (ball valves, gate valves, globe valves).
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Optimized disc/shaft design to obtain an important flow coefficient (low head loss).
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Internal protection ring for bushing , preventing any particles getting inside.
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Intrinsic Fire safe Pressure (BS 6755 part 2, API607).
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Mounting plate ISO 5211.