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CS-H21 Series

High temperature butterfly valve for gases

Diameter range DN80 ÷ DN2000

Max temperature 1000 °C

• Diameter range DN80 ÷ DN2000

• Interception or modulating service.

• Designed for 200 mm of insulation.

• CE marking

Operating conditions

Design temperature 1000°C
• Design pressure –0,1 barg ÷ +0,5 barg

Applicable standards

Design EN 593, EN 12516, ASME B16.34
• Flanges EN 1092-1, ASME B16.5, other on request
• Testing EN12266, ANSI/FCI70-2

Ends connections

• Bolted flanges
• Butt welded
• Wafer

Blade seals options

No seal – Geometric tightness 96%
Metal to metal – FCI 70-2 max tightness class II
• Soft sealing – FCI 70-2 max tightness class III/IV

Valve actuation

Top flange connections: EN ISO 5210, EN ISO 5211

Actuator types:
• Manual with lever or handwheel
• EN 15714-2 Electric actuators
• EN 15714-3 Pneumatic actuators

Shaft seals options

• Ceramic fiber with inconel core braid packing
• Braid packing with lantern ring
• Seal air cleaning system on shaft

Materials

Internal parts with hot corrosion and creep resistant alloys: 
• AISI 310S 
• Alloy 253Ma 
• Inconel 601 alloy 
• Alloy 800 HT

Bearing

Double shaft with two external bearings

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