Sanhua LPF18-002 : Electric Expansion Valve, 18mm Port Diameter, 12V DC, Excitation Mode: 1 - 2 phase excitation, unipolar actuation, Excitation Rate: 30 - 90pps, Full Stroke Time: 6s @ 90pps, Coil Current: 260 mA/phase (20°C), Insulation Class: E, IP67, 1-3/4 ton EEV - 3/8" x 1/2"