VALVES PRODUCT NEWS

Hard sealed ball valve is a type of valve with good sealing performance. It adopts hard sealing technology and has three characteristics: high temperature resistance, high pressure resistance, and wear resistance. It can effectively prevent medium leakage and has good corrosion resistance, which can meet the requirements of various working conditions. 1. The working principle of a hard sealed ball valve is that when the valve stem rises, the hard

Soft sealed ball valve is a commonly used control valve, which consists of a ball body, valve body, valve stem, soft seal, handwheel, etc. The sphere is fixed by the valve body and valve stem, and a handwheel is installed on the valve stem. The handwheel drives the sphere to rotate through the valve stem, thereby controlling the opening and closing of the valve. The soft seal is composed of

Eccentric hemispherical valve is a commonly used control valve, whose main function is to control the flow rate and pressure of fluids. Its working principle is to control the flow rate and pressure of the fluid by rotating the hemispherical valve core, thereby achieving fluid control and regulation. Below, we will provide a detailed introduction to the working principle, structural characteristics, and application fields of eccentric hemispherical valves. 1、 Working

1. Design: Based on the usage requirements and working environment, design the structure, materials, dimensions, and other parameters of the valve. During the design process, factors such as valve functionality, sealing performance, and pressure resistance need to be considered. 2. Material selection: Select suitable materials for manufacturing according to design requirements. Common valve materials include cast iron, cast steel, stainless steel, copper alloy, etc. 3. Material processing: According to the

Electric vacuum ball valve is a valve suitable for connecting or cutting off the flow of medium in vacuum systems. It adopts a rotary electric and electronic regulating valve drive device, which can achieve valve opening, closing or intermediate position control through the switching of external power supply (manually operated or computer-controlled) or external input signals. Electric vacuum ball valves have excellent sealing performance and low leakage rate, which can

What is the purpose of valve preliminary selection? The selection of valve selection is often not achieved overnight, especially for beginners. In order to calculate the discharge coefficient, estimate the noise, etc. It is necessary to select the structure of the valve body to obtain some calculation parameters. If the calculation results do not meet the requirements, the valve type should be re selected. The actuator, the form of upper

How do valve positioners and control valves form a loop? The valve positioner is the main accessory of the control valve. It is used with the regulating valve to receive the output signal of the regulator, and then control the regulating valve with its output signal. After the regulating valve acts, the displacement of the valve stem is fed back to the valve positioner through the unloading device. Therefore, this

What is the difference between traditional valve positioner and intelligent valve positioner? The valve opening signal indicated by the traditional valve positioner is actually the signal output from the indicating computer or instrument to the valve positioner, so the actual site position often deviates from the feedback position. The intelligent valve positioner is equipped with a valve position feedback signal transmitter, which can output the actual action position signal of