50000 Atkomatic Product Selection Wizard The matrix number for your Atkomatic product is: 5 0 - (Place your mouse over characters in the matrix number to see a corresponding description.) Selection Items Maximum Operating Pressure: Stem Type: . Extended Length Standard Length Voltage DC: . AC, 50Hz or 60 Hz 12 VDC 24 VDC 48 VDC 125 VDC 250 VDC Thread Size: . 1/8" 1/4" 3/8" 1/2" 3/4" 1" Connection Type: . NPT British Pipe Thread 6" Stubs Valve Normal Position: . Normally Closed Normally Open Orifice Size: . 1/16" 3/32" 1/8" 3/16" Voltage AC (60 Hz): . DC or 50 Hz AC 100 VAC, 60 Hz 115 VAC, 60 Hz 200 VAC, 60 Hz 230 VAC, 60 Hz 460 VAC, 60 Hz Fluid/Media Type: . Gas Liquid, up to 40 SUS Liquid, 41 SUS to 150 SUS Cryogenic Voltage AC (50 Hz): . DC or 60 Hz AC 110 VAC, 50 Hz 220 VAC, 50 Hz Coil Housing: . Standard (NEMA 1) Waterproof (NEMA 4) Explosion-proof (NEMA 7) Water- & Explosion-proof (NEMA 4 & 7)