Gas Butterfly Control Valve SVA / SVH / SVHT

Housing

668M2200 SVA aluminium ALMG4, 5 MN 0,7
668M2205 SVH grey cast iron
668M2210 SVHT stainless steel 1.4305

Control disk

Stainless steel 1.4301

Shaft    

Stainless steel 1.4301

Shaft seal  

668M2200: NBR-O-Ring
668M2205: Graphite
668M2210: Graphite, Silicate fabric / tungsten sheath

Nominal size

DN40 ... DN200, Reduction by two nominal diameters possible (except type 668M2205)

Body width

30 mm or 40 mm

Operating pressure

500 mbar

Ambient temperature operationb

668M2200: -20 °C ... +100 °C
668M2205: -20 °C ... +450 °C
668M2210: -20 °C ... +650 °C

Leckage    

<1 % of the K_vs value 90°, with optional sealing system approximately "0"

Mounting    

For clamping between flanges PN6 to PN40 according to EN 1092-1

KV value

See downloads technical data sheet