Globe valve N20

with handwheelpneumatically-operatedregulating

The Series N20 cage valves have been specifically designed to operate under tough conditions, when phenomena like cavitation, flashing or high noise levels play an important role. In gas and steam services a triple cage N20 valve is up to 30 dBA more quite than a traditional globe valve. N20 valves are available with an open window cage (for plug balancing purposes only), single, double or a triple cage (for low noise purposes only) Valve body Type: globe, single seat Connections: flanged UNI 2223/29 PN16-250 / ANSI 150-1500 RF Materials -carbon Steel ASTM A 216 WCB -stainless Steel ASTM A 351 CF8M MODULAR AND RUGGED CONSTRUCTION REDUCED WEIGHT AND DIMENSIONS DOUBLE GUIDED STEM TO PREVENT STEM MISALIGNMENTS AND PACKING DEFORMATIONS MINIMIZED CRYSTALLIZATION AND SOLIDIFICATION OF THE FLUID BY INSERTION OF THE BONNET INTO THE BODY REVERSABLE ACTUATOR WITH MULTIPLE SPRINGS AND VARIABLE SPRING RANGES Bonnet -normal -finned -extended Bonnet packing -PTFE coal graphite rings -teflon / graphite asbestos -graphite -bellows seal Trim Plug Execution -type contoured Flow Characteristic -equal percentage -linear -on / off Rangeability -1 / 50 (std. execution) Seat / plug seal -metal to metal -Resilient Leak rate -CL. IV ANSI B16.104 (métal seal) -CL. VI ANSI B16.104 (résilient seal) Guide -N 2. Upper Ortion Valve body Connections -flanged ANSI B 16.5 125 FF/ JIS 5-40K -S.W. according to ANSI B16.11 -B.W. according to ANSI B16: 25 -screwed ANSI B2.1 Materials -Steel A 352 LCB (for low température) -Steel A 217 WC9 -hastelloy Bonnet -finned (>300 °C) -bellow seal (> 6 bar / 350 °C) Seat / plug / guide materials