1) Sizes: DN50mm - DN800mm2) Seal: brass / BTFE / stainless steel / 3) Body: Cast iron4) Disc: cast steel/Stainless steel5) Bonnet: Cast iron6) Stem: stainless steel8) Type: flange type valve9) Pressure: 1.0/1.6MPa 10) Connection type: flange end11) Control method: manual12) Advantages: good appearance, long service life and flexible switch