Detailed Product Description Features: 1) Sizes: for stee 40mm - 200mm:for iron 40-600mm 2) Seal: stainless steel/cast iron 3) Body: cast steel 4) Standards: JB, JB/T, DIN 5) Type: two-way cast steel swing check valve 6) Pressure: 1.6 / 2.5 / 4.0MPa (16 / 25 / 40kg) 7) Connection type: flange end /screw end 8) Control method: automatic 9) Advantages: good appearance, long service life and flexible switch Conveyance: By steam ship