According to power distribution

1自动阀门

1 automatic valve

依靠介质自身的力量进行动作的阀门。如止回阀、减压阀、疏水阀、阀等。

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驱动阀门

2 drive valve

依靠人力、电力、液力、气力等外力进行操纵的阀门。如截止阀、节流阀、闸阀、碟阀、球阀、旋塞阀等。

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.

▍按结构特性分

Classified by structural characteristics

1截门形:关闭件沿着阀座线移动。

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

2闸门形:关闭件沿着垂直于阀座的线移动。

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

3旋塞形:关闭件是柱塞或球，围绕本身的线旋转。

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

4旋启形:关闭件围绕阀座外的一个轴旋转。

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

5碟形:关闭件是圆盘，围绕阀座内的轴旋转。

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

6滑阀形：关闭件在垂直于通道的方向上滑动。

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

▍按用途分

Classified by purpose

1开断用:用来切断或接通管路介质。如截阀、闸阀、球阀、旋塞阀等。

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

2调节用:用来调节介质的压力或流量。如减压阀、调节阀。

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:用来改变介质的流向，起分配作用。如三通旋塞、三通截止阀等。

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:用来防止介质倒流。如止回阀。

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

5用:在介质压力超过规定数值时，排放多余介质，以保证设备。如阀、事故阀。

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阻气排水用:留存气体，排除凝结水。如疏水阀。

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

▍按操纵方法分

According to the operating method

1手动阀门:借助手轮、手柄、杠杆、链轮、齿轮、蜗轮等，由人力来操纵的阀门。

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

2电动阀门:借助电力来操纵的阀门。

2 Electric valve: a valve operated by electricity.

3气动阀门:借助压缩空气来操纵的阀门。

3 pneumatic valve: a valve operated by compressed air.

4液动阀门:借助水、油等液体，传递外力来操纵的阀门。

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

▍按压力分

Divided by pressure

1真空阀:压力小于1公斤/厘米2的阀门。

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

2低压阀:公称压力小于16公斤/厘米2的阀门。

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

3中压阀:公称压力25－64公斤/厘米2的阀门。

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

4高压阀:公称压力100－800公斤/厘米2的阀门。

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

5超高压:公称压力达到或大于1000公斤/厘米2的阀门。

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

▍按介质温度分

Divided by medium temperature

1普通阀门:适用于介质工作温度－40450℃的阀门。

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

2高温阀门:适用于介质工作温度450600℃的阀门。

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

3耐热阀门:适用于介质工作温度600℃以上的阀门。

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

4低温阀门:适用于介质工作温度－40－70℃的阀门。

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

5深冷阀门:适用于介质工作温度－70－196℃的阀门。

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

6超低温阀门:适用于介质工作温度－196℃以下的阀门。

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

▍按公称通径分

Divided by nominal diameter

1小口径阀门:公称通径小于40毫米的阀门。

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

2中口径阀门:公称通径50300毫米的阀门。

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

3大口径阀门:公称通径3501200毫米的阀门。

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

4特大口径阀门:公称通径大于1400毫米的阀门。

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