ZT - L 12 E - OT ---- J ① ② ③ ④ ⑤ ⑥ ①, multi-valve code; ②, threaded connections, L: threaded connections (port connection form); ③, Nominal by : 12 mm; flow rate 50L / MIN. ④, nominal pressure rating, E: 16 MPa, F: 20 MPa (pressure rating); ⑤, slide valve function: O lever A lever, Y bar, P rod (stem function); ⑥, slide valve reset, T: for spring reset mode, W: Ball reset (positioning); ⑦, 'J' is the pressure output examples: (1) ordinary O lever all the way to spring for the reset: ZT-L12E-OT; (2), M lever all the way ordinary spring reset mode: ZT-L12E-MT; (3), Y lever all the way ordinary spring reset mode: ZT-L12E-YT; (4), O lever all the way ordinary ball positioning way: ZT-L12E-OW; (5), all the way ordinary O rod pneumatic control positioning: ZT-L12E-OQ;