RC-M21 Series

Non return damper for gases

Size range upon request

Max temperature 600 °C

• Size range upon request

• Interception service

• Designed for 200 mm of insulation

• CE marking

Operating conditions

• Design temperature –40°C ÷ 600°C
• Design pressure –0,1 barg ÷ +0,5 barg

Applicable standards

• Design EN 593, EN 12516, ASME B16.34
• Circular flanges EN 1092-1, ASME B16.5, others on request
• Rectangular flanges according to customer request
• Testing EN12266, ANSI/FCI70-2

Ends connections

• Bolted flanges

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

Valve actuation

• Counterweight mechanism

Shaft seals options

• Graphite braid packing
• Braid packing with lantern ring
• Seal air cleaning system on shaft

Materials

• CORTEN A
• EN 10028-2 steels for high temp.
• Ferritic, austenitic and duplex stailness steels

Bearing options

• One external bearing
• Double shaft with two external bearings

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