Specifications inlet - outlet diameter: 8 mm ( 0.315" ) working pressure: 0.02 to 0.8 MPa (0.2 to 8 bar / 29 to 116 psi ) working temperature: 1 °C to 60 °C ( 1 to 140 °F ) response time (open: 0.15 sec response time (close): 0.3 sec actuating voltage: 12 VDC weight: 95 g ( 0.21 lbs ) connection: 6.3 mm (2.5") tab (for FBF6 or FBMI) type: normally closed (opens at 12 VDC) Whadda (Velleman) WPM422 Replaces Velleman VMA422 (5410329680855)