Ball valve as a commonly used type of valve in the industrial field, its specifications are varied, and different specifications of ball valves are suitable for different working conditions and needs. This article will give you a detailed introduction to the specification types of ball valves to help you better understand and choose ball valve products.
1. Overview of ball valves
Ball valve is a ball as the opening and closing parts of the valve, with simple structure, easy operation, good sealing performance and other characteristics, widely used in petroleum, chemical, natural gas, water treatment and other industrial fields.
Ball valve specifications mainly involve the following aspects:
1. Material: ball valve material directly affects its performance and scope of application, common materials are carbon steel, stainless steel, cast steel and so on.
2. Specifications: China ball valve specifications include nominal diameter, nominal pressure, flange size, etc., which determines the flow capacity, pressure and connection mode of the ball valve.
3. Temperature: The working temperature range of the ball valve determines its application ability under different working conditions.
4. Drive mode: ball valve drive mode includes manual, electric, pneumatic, etc., which determines the operation mode and control mode of ball valve.
Second, China ball valve specifications detailed introduction
1. Material specifications: ball valve material is mainly divided into carbon steel, stainless steel and cast steel, etc., according to different use environment and medium requirements to choose the appropriate material.
(1) Carbon steel ball valve: mainly made of carbon steel material, with good pressure resistance and strength, suitable for pipe control systems in the general industrial field.
(2) Stainless steel ball valve: made of stainless steel material, with good corrosion resistance, suitable for corrosive media and cleanliness requirements of high occasions.
(3) Cast steel ball valve: made of cast steel material, with high pressure resistance, good impact resistance and other characteristics, suitable for high temperature, high pressure industrial fields.
2. Specifications and dimensions: China ball valve specifications and dimensions mainly include nominal diameter, nominal pressure and flange size.
(1) Nominal diameter: The nominal diameter of the ball valve determines its flow capacity, usually ranging from DN15 to DN2000, or even larger.
(2) Nominal pressure: The nominal pressure of the ball valve determines its ability to withstand pressure, usually ranging from PN10 to PN400.
(3) Flange size: the flange size of the ball valve determines its connection mode, and the common flange standards are GB, ISO, ANSI, etc.
3. Working temperature: The working temperature range of the ball valve determines its application capacity under different working conditions, which is usually divided into high temperature ball valve, medium temperature ball valve and low temperature ball valve.
(1) High temperature ball valve: suitable for high temperature conditions, the working temperature can reach 600℃ or more.
(2) Medium temperature ball valve: suitable for medium temperature conditions in the general industrial field, the working temperature is usually between -20℃ and 350℃.
(3) Low temperature ball valve: suitable for low temperature conditions, the working temperature can reach -40℃ below.
4. Drive mode: ball valve drive mode includes manual, electric, pneumatic, etc., which determines the operation mode and control mode of ball valve.
(1) Manual ball valve: by manually operating the valve stem, the ball moves up and down to control the on-off of the medium.
(2) Electric ball valve: power on, through the motor to drive the valve stem, to achieve the ball up and down movement, control the media on and off.
(3) Pneumatic ball valve: through the air source to drive the cylinder, to achieve the up and down movement of the valve stem, control the ball on and off.
Iii. Conclusion
China’s ball valve specifications are wide, the choice of the right ball valve needs to be considered according to the specific application scenarios and needs. Understanding the various specifications and types of ball valves helps to better choose the right products, so as to achieve the ideal use effect. I hope this article can provide you with a useful reference when choosing a ball valve.
Post time: Aug-25-2023
