Torque in physics refers to the tendency of force to cause an object to rotate around a pivot or pivot. Torque, the physical quantity of the rotating action of the force on the object, can be divided into the moment of the force to the axis and the moment of the force to the point. Rotating moment is also called torque or torque.

Torque in physics refers to the tendency of force to cause an object to rotate around a pivot or pivot. Torque, the physical quantity of the rotating action of the force on the object, can be divided into the moment of the force to the axis and the moment of the force to the point. Rotating moment is also called torque or torque.

1. DBB double block and bleed valve Valves with two seat seating pairs can provide pressure seal at both ends of Forged Steel Reduced Port Ball Valve through a discharge/exhaust method in the body cavity between the two seat surfaces.

Shipyard is very simple. As a result, there is little space on board. Operators must reduce the volume to make the gas tank as small as possible. They do this through liquefied natural gas (liquefied natural gas, liquefied natural gas). By cooling to about natural gas, it becomes liquid. -165 degrees C. At this temperature, the main isolation Forged Steel Trunnion Ball Valve must still work.

The large caliber gate valve is suitable for class 150-2500, small caliber pipeline with working temperature of - 29-425 ℃ (carbon steel) or - 29-500 ℃ (stainless steel) to cut off or connect the medium in the pipeline. Different materials are selected, which can be respectively applied to water, steam, oil, nitric acid, acetic acid, oxidizing medium, urea and other media. It is widely used in oil pipeline.