Welding slag, rust, slag, etc. in the pipeline cause blockage or jam in the throttle, guide part, and balance hole of the lower
bonnet, resulting in strain and scratches on the curved surface of the valve core,
As the name suggests, a low temperature valve is a valve that can work in cryogenic low temperatureconditions. To demarcate its working temperature, a valve with a working temperature below -40 °C is usually called a low temperature valve.