... the nominal diameter 20mm, metric threaded connection type ball valve, the model YJZQ-J20N (2) Nominal ... of 31.5MPa, the nominal diameter 15mm, the ball valve within the interface inch pipe thread, the ... external threaded connection with the takeover and nut ball valve, the model YJZQ-J32W (with take ... nominal diameter 10 mm, connection plate, screw type ball valve, the model YJZQ-J10B (with screws) ...