圓閘Round gate公稱通徑 Nominal diameter: DN400~DN3000公稱壓力 Nominal pressure: PN0.1~1.0MPa適用介質 Applicable medium:水、污水、海水 Water,dirty water,sea water適用溫度 Applicable temperature: ≤65℃驅動方式 Drive mode:手動、電動 Hand operated,electrically operated