solenoid valve systems

Solenoid Valve, Waterhammer-freefor neutral fluidsNormally closed52812/2-Way, NPT 1 /2 - NPT2, 2.8-230 psiGHigh reliabilityModular solenoid coil-systemWaterhammer-free, low noiseCompact design with highflow rates2/2-Way, Servo-Assisted5281Modular, servo-assisted solenoid valve system, for city water,neutral gases and clean liquids. Require 2.8 psiG acoss thevalve open.Applications: process systems, chemical processing.water/sewage treatment and sterilizers.Technical DataPressure range2.8-230 psiG, max.Temperature media+14 o F ... +194 o FAmbient temperature+131 o F, max.Body materialBrassSeal materialNBRCoil materialPolyamidePower consumptionDC: 8 WAC: 21 VA(inrush),12 VA(hold)Protection class withNEMA 4 (standard delivery:cable plug cable plug DIN 43650A)Options- Manual override- 5 W power consumption- 2 W power consumption- LED cable plug- Valve mounted timer systemsDimensions [inch].21AB1.14 1.77A/F 0.55G1/8.151.61Variable dimensions [inch]DN XXPort Conn. Orifice A B F E L A/F[inch][inch]NPT 1/2 1/2 3.39 3.94 0.54 1.58 2.56 1.06NPT 3/4 3/4 3.61 4.24 0.55 2.36 3.94 1.26NPT 1 1 3.76 4.57 0.66 2.76 4.53 1.62NPT 1 1/4 1 1/4 4.00 4.98 0.68 3.35 4.96 1.97NPT 1 1/2 1 1/2 4.16 5.34 0.68 3.35 4.96 2.36NPT 2 2 4.81 6.19 0.69 4.53 6.46 2.76FLDA/FEwith standard cable plug 0-250 V AC/DCSpecificationsPort Orifice Cv Pressure Range Weightconnection[Inch] [inch] [PSI] [lb.]NPT 1/2 1/2 4.66 2.8-230 1.32NPT 3/4 3/4 5.83 2.8-230 2.43NPT 1 1 11.65 2.8-230 3.31NPT 1 1/4 1 1/4 23.30 2.8-230 4.96NPT 1 1/2 1 1/2 23.30 2.8-230 5.84NPT 2 2 46.60 2.8-230 10.91Ordering ChartItem No.24 V DC 24 V/60 Hz 120 V/60 Hz 240 V/60 Hz456 864 V 456 865 W 456 866 X 456 867 Y456 868 H 456 869 A 456 870 F 456 871 U456 872 V 456 873 W 456 874 X 456 875 Y456 876 Z 456 877 S 456 878 B 456 879 C456 880 S 456 881 P 456 882 Q 456 883 R456 884 J 456 885 K 456 886 L 456 888 W21