According to power distribution

1自動閥門

1 automatic valve

依靠介質自身的力量進行動作的閥門。如止回閥、減壓閥、疏水閥、安全閥等。

A valve that operates by relying on the force of the medium itself. Such as check valves, pressure reducing valves, drain valves, safety valves, etc.

2驅動閥門

2 drive valve

依靠人力、電力、液力、氣力等外力進行操縱的閥門。如截止閥、節流閥、閘閥、碟閥、球閥、旋塞閥等。

A valve operated by external forces such as manpower, electricity, fluid power, and pneumatic power. Such as globe valves, throttle valves, gate valves, butterfly valves, ball valves, plug valves, etc.

▍按結構特性分

Classified by structural characteristics

1截門形:關閉件沿著閥座線移動。

1 section gate shape: The closing element moves along the centerline of the valve seat.

2閘門形:關閉件沿著垂直于閥座的線移動。

2 Gate shape: The closing element moves along the centerline perpendicular to the valve seat.

3旋塞形:關閉件是柱塞或球，圍繞本身的線旋轉。

3 plug shape: The closing element is a plunger or ball that rotates around its centerline.

4旋啟形:關閉件圍繞閥座外的一個軸旋轉。

4 swing shape: The closing element rotates around an axis outside the valve seat.

5碟形:關閉件是圓盤，圍繞閥座內的軸旋轉。

5 disc shape: The closing element is a disc that rotates around the axis inside the valve seat.

6滑閥形：關閉件在垂直于通道的方向上滑動。

6 slide valve shape: The closing element slides in a direction perpendicular to the channel.

▍按用途分

Classified by purpose

1開斷用:用來切斷或接通管路介質。如截至閥、閘閥、球閥、旋塞閥等。

1. For disconnection: Used to cut off or connect pipeline medium. Such as globe valves, gate valves, ball valves, plug valves, etc.

2調節用:用來調節介質的壓力或流量。如減壓閥、調節閥。

2. Regulating: Used to regulate the pressure or flow rate of the medium. Such as pressure reducing valve and regulating valve.

3分配用:用來改變介質的流向，起分配作用。如三通旋塞、三通截止閥等。

3 allocation function: used to change the flow direction of the medium and play a distribution role. Such as three-way cocks, three-way globe valves, etc.

4止回用:用來防止介質倒流。如止回閥。

4 Non return use: used to prevent media backflow. Like a check valve.

5安全用:在介質壓力超過規定數值時，排放多余介質，以保證設備安全。如安全閥、事故閥。

5. Safe use: When the medium pressure exceeds the specified value, discharge excess medium to ensure equipment safety. Such as safety valves and accident valves.

6阻氣排水用:留存氣體，排除凝結水。如疏水閥。

6. Gas blocking and drainage: Retain gas and discharge condensate. Like a drain valve.

▍按操縱方法分

According to the operating method

1手動閥門:借助手輪、手柄、杠桿、鏈輪、齒輪、蝸輪等，由人力來操縱的閥門。

1. Manual valve: a valve that is manually operated using handwheels, handles, levers, sprockets, gears, worm gears, etc.

2電動閥門:借助電力來操縱的閥門。

2 Electric valve: a valve operated by electricity.

3氣動閥門:借助壓縮空氣來操縱的閥門。

3 pneumatic valve: a valve operated by compressed air.

4液動閥門:借助水、油等液體，傳遞外力來操縱的閥門。

4 hydraulic valve: a valve operated by transmitting external forces through liquids such as water and oil.

▍按壓力分

Divided by pressure

1真空閥:絕對壓力小于1公斤/厘米2的閥門。

1 Vacuum valve: A valve with an absolute pressure less than 1 kg/cm2.

2低壓閥:公稱壓力小于16公斤/厘米2的閥門。

2. Low pressure valve: a valve with a nominal pressure less than 16 kg/cm2.

3中壓閥:公稱壓力25－64公斤/厘米2的閥門。

3. Medium pressure valve: a valve with a nominal pressure of 25-64 kg/cm2.

4高壓閥:公稱壓力100－800公斤/厘米2的閥門。

4. High pressure valve: a valve with a nominal pressure of 100-800 kg/cm2.

5超高壓:公稱壓力達到或大于1000公斤/厘米2的閥門。

5 Ultra high pressure: valves with a nominal pressure of 1000 kg/cm2 or more.

▍按介質溫度分

Divided by medium temperature

1普通閥門:適用于介質工作溫度－40至450℃的閥門。

1. Ordinary valve: suitable for valves with medium operating temperatures ranging from -40 to 450 ℃.

2高溫閥門:適用于介質工作溫度450至600℃的閥門。

2. High temperature valve: suitable for valves with medium operating temperatures ranging from 450 to 600 ℃.

3耐熱閥門:適用于介質工作溫度600℃以上的閥門。

3. Heat resistant valve: suitable for valves with medium operating temperature above 600 ℃.

4低溫閥門:適用于介質工作溫度－40至－70℃的閥門。

4. Low temperature valve: suitable for valves with medium operating temperatures ranging from -40 to -70 ℃.

5深冷閥門:適用于介質工作溫度－70至－196℃的閥門。

5. Cryogenic valve: suitable for valves with medium operating temperatures ranging from -70 to -196 ℃.

6超低溫閥門:適用于介質工作溫度－196℃以下的閥門。

6. Ultra low temperature valve: suitable for valves with medium operating temperature below -196 ℃.

▍按公稱通徑分

Divided by nominal diameter

1小口徑閥門:公稱通徑小于40毫米的閥門。

1. Small caliber valve: A valve with a nominal diameter less than 40mm.

2中口徑閥門:公稱通徑50至300毫米的閥門。

2 caliber valve: valve with a nominal diameter of 50 to 300 millimeters.

3大口徑閥門:公稱通徑350至1200毫米的閥門。

3 large diameter valves: valves with a nominal diameter of 350 to 1200 millimeters.

4特大口徑閥門:公稱通徑大于1400毫米的閥門。

4 oversized valves: valves with a nominal diameter greater than 1400 millimeters.