... 3pc type ball valve with internal thread Nominal pressure:PN1.6,2.5,4.0,6.4Mpa. Strength testing pressure:PT2. ... 4,3.8,6.0,9.6Mpa 3pc type ball valve with internal thread ( ... stainless steel ball valve )1. Nominal pressure:PN1.6,2.5,4.0,6.4Mpa.2. Strength testing pressure:PT2.4 ... ,3.8,6.0,9.6Mpa.3. Seat testing pressure (low pressire):0.6Mpa.4. Applicable media: ...