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