1There are 3 kinds of voltages to choose from: DC 12V/DC 24V / AC 220V, normally closed (NC) type 2Made of high quality brass materials, precise and reliable, good rigidity and long service life 3Suitable for use in aqueous media, working temperature 0-80C 4Working pressure: 0.02 - 0.8MPa (the maximum pressure is 1.75MPa) 5With the characteristic of wear-resistant, anti-corrosion and high temperature resistance.