KVN DN 65-200 Flange Design, Pressure Balanced Piston Valve

KVN DN 65-200 Flange Design – Key Features

• Piston valve with bore
• Pressure-balanced design
• Sealing via three elastic KX-GT valve rings
• Excellent control characteristics
• Fire Safe
• Special regulating design available (KVRLN)
• Temperature-10 °C to +400 °C (see P-T diagram)

Material Used

• Grey cast iron EN-GJL-250 / 5.1301 (Material code III)*
• Nodular cast iron JS 1025 / 5.3103 (Material code VI)*
• Cast steel 1.0619 (Material code VIII)

Dimensions

EN 558-1, GR. 1

Connections

Flange in accordance with EN 1092-2 (Mat. code III, VI)

Flange in accordance with EN 1092-1 (Mat. code VIII)

Acceptance Testing

• Seat leak tightness: EN 12266-1 P12, leakage rate A
• Tightness to atmosphere: EN 12266-1 P11
• Strength: EN 12266-1 P10