Description Velleman Water Valve Inlet - outlet diameter: 8 mm Working pressure: 0.02 to 0.8 MPa (0.2 to 8 bar) Response time: = 0.15 - 0.3 sec Actuating voltage: 12 Vdc View more What's Included 1 x Velleman Water Valve Links PDF File Specifications Working temperature: 1 °C to 60 °C Response time (open: = 0.15 sec Response time (close): = 0.3 sec Weight: 95 g Connection: 6.3 mm tab (For FBF6 or FBMI ) When you apply 12 volts it will open, when you remove 12 volts it will close