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Key points for the design and selection of High Pressure Hydrogenation Valve
High Pressure Hydrogenation Valve are water pressure-controlled valves. They consist of a main valve and its attached guide tube, pilot valve, needle valve, ball valve and pressure gauge. When selecting High Pressure Hydrogenation Valve, pay attention to the following points: (1) The High Pressure Hydrogenation Valve used in engineering are products that have passed
How to use a Programmable Switch Butterfly Valve
In physical and chemical experiments, gases such as oxygen, nitrogen, hydrogen, and argon are often used. These gases are generally stored in special high-pressure gas cylinders. When in use, the gas pressure is reduced to the range required for the experiment through the Control Valve, and then fine-tuned through other Control Valve to allow the gas to enter the use system. The commonly used Control Valve is a Programmable Switch Butterfly Valve, referred to as an oxygen meter.
Working principle of Programmable Switch Butterfly Valve
The Programmable Switch Butterfly Valve is a safety device widely used in pressure systems such as pressure vessels, boilers, and pressure pipelines to ensure the safe operation of the pressure system. The Programmable Switch Butterfly Valve is a safetydevice to prevent pressure equipment and containers from bursting due to pressure increase or excessive pressure inside the container.
Characteristics and uses of Programmable Switch Butterfly Valve
The butterfly plate of the D71X Programmable Switch Butterfly Valve is installed in the diameter direction of the pipe. In the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, and the rotation angle is between 0° and 90°. When it rotates to 90°, the valve is fully open. This type of valve should generally be installed horizontally in pipelines.
Types and installation of Programmable Switch Butterfly Valve
When the power is turned on, the solenoid coil generates electromagnetic force to lift the closing member from the valve seat, and the valve opens; when the power is turned off, the electromagnetic force disappears, and the spring presses the closing member against the valve seat, and the valve closes. Features: It can work normally under vacuum, negative pressure and z
Correctly install Programmable Switch Butterfly Valve to improve production efficiency
Whether the Programmable Switch Butterfly Valve is properly installed has a direct impact on the normal operation of the Programmable Switch Butterfly Valve and the production efficiency of the equipment. The Programmable Switch Butterfly Valve must be installed according to the formal installation requirements so that the Programmable Switch Butterfly Valve and equipment can achieve optimal working efficiency.
How to choose Programmable Switch Butterfly Valve and maintenance knowledge
1. There are problems with the old selection standards for Programmable Switch Butterfly Valve: The old selection standard for Programmable Switch Butterfly Valve has many shortcomings. The obvious thing is that it does not mention the type of equipment to be drained and the method of draining. The selected programmable switching butterfly valve often does not match the actual load. What is particularly serious is that the thermodynamic disc programmable switching butterfly valve (the basis of the old selection standard) is mistaken for a universal programmable switching butterfly
Flow Control Valve selection guide
The valve stem axis of the Flow Control Valve is perpendicular to the valve seat sealing surface. The valve stem has a relatively short opening or closing stroke and a very reliable cutting action, making this type of valve very suitable for cutting off or regulating and throttling media. Once the valve disc of the Flow Control Valve is in an open state, there is no contact between its valve seat and the valve disc sealing surface, and it has a very reliable cutting action. This kind of valve is very suitable for cutting off or regulating media and Use sparingly.
Correct selection and precautions for Pressure Relief Valve
The Pressure Relief Valve is a water pressure control valve. It consists of a main valve and its attached conduit, pilot valve, needle valve, ball valve and pressure gauge. When using a Pressure Relief Valve, you must first pay attention to its selection. Improper selection may cause water blockage and air leakage. When selecting a Pressure Relief Valve, the drainage volume of the Pressure R
Applicable occasions and application conditions of Pressure Relief Valve
Since the movement of the valve plate of the Pressure Relief Valve is wiping, most Pressure Relief Valve can be used for media with suspended solid particles. Depending on the strength of the seal, they can also be used for powdery and granular media. The Pressure Relief Valve has a small structural length and overall height, fast opening and closing speed, small
Pressure Relief Valve installation instructions
1. Control the pressure difference adjustment method: adjust the pressure regulating valve stem counterclockwise and observe the pressure difference; 2. The flow direction of the Pressure Relief Valve medium should be consistent with the direction of the arrow on the valve body; 3. A filter should be installed on the water supply pipe in front of the pressure pipe to prevent the valve
Common Steam Trap failures and how to deal with them
The main cause of Steam Trap failure is improper design, manufacturing, selection or use. If these faults are not eliminated in time, they will affect the efficiency and life of the valve, and may even fail to provide safety protection. Common faults and solutions are as follows: (1) Leakage. Under the normal operating pressure of the equipment, leakage exceeding the allowable level occurs between t
The importance of Needle Valve in pipelines
According to the structure, Needle Valve can be divided into three types: lift Needle Valve, swing Needle Valve and butterfly Needle Valve. Lift Needle Valve can be divided into two types: vertical Needle Valve and horizontal Needle Valve. Swing Needle Valve are divided into three types: single-disc Needle Valve, double-disc Needle Valve and multi-disc Needle Valve. Butterfly Needle Valve are straight-through Needle Valve. The connection forms of the above Needle Valve can be divided into three types: threaded Needle Valve, flange connected Needle Valve and welded Needle Valve. The Needl
Comparison of the functional advantages and disadvantages of Plug Valve
1. Determine the valve type based on comprehensive economic effects There are several types of applicable valves that meet the above functional requirements. At this time, a certain valve type should be determined based on the economic effects. To this end, we believe that at least the following issues should be considered: 1) High reliability ①Simpl
Improvement of Plug Valve seal
1. Current status and analysis of Plug Valve sealing Cast stone Plug Valve is an ideal opening and closing device in ash and slag pipelines. The quality and service life of the seal directly affect the quality and service life of the valve. In the past, the O-shaped rubber seal structure was used, that is, an O-shaped sealing ring was placed in the annular groove machined on the shaft, and then assembled into the hole machined on the sleeve parts to form a seal between the shaft and the hole. This kind of The sealing performance of the structure depends on the interference amount
Factors that should be paid attention to when selecting Ball Valve
The selection of Ball Valve should first follow the four principles of safety, reliability, applicability, and economy, and secondly, based on the six aspects of on-site working conditions. 1. Choose according to the length of continuous working time: normally closed, normally open, or continuously powered on ①If the opening time is short or the opening and closing time is not l
Operation, use and advantages of Ball Valve
1. Emergency sealing grease injection rescue: The valve seat seal unexpectedly fails due to foreign matter in the Ball Valve medium or fire. The grease injection valve provides a quick connection with the grease injection gun. The imported pump injects sealing grease into the valve seat sealing part conveniently and quickly. , alleviate leakage. 2. Reliable valve stem sealing and low operati
The Ball Valve has the advantages of simple and compact structure, reasonable design, light material saving, reliable sealing, light and flexible operation, small size, smooth channel, small flow resistance, light weight, easy installation and easy disassembly, etc. It completely solves the problem of ordinary gate valves, flat gate valves, Globe valves, regulating valves, butterfly valves, Ball Valve and other valves have difficult problems such as heavy weight, large flow resistance, large area, and difficulty in installation. They can replace general cut-off valves and regulating valv
Common sense of Ball Valve selection and its structural principles
1. Applicability The fluid in the pipeline must be consistent with the medium calibrated in the selected Ball Valve series model. The temperature of the fluid must be less than the calibrated temperature of the selected Ball Valve. The allowable liquid viscosity of the Ball Valve is generally below 20CST. If it is greater than 20CST, it should be noted. Working pressure difference, when the high pressure difference in the pipeline is less than 0.04MPa, direct-acting and step-by-step direct-acting types such as ZS, 2W, ZQDF, ZCM series should be used; when the low working pressure
Ball Valve installation and maintenance
Ball Valve Fluoroplastic or plastic-lined corrosion-resistant Ball Valve and pipeline accessories, due to their inherent special properties, have the following characteristics in terms of product installation, maintenance and upkeep: 1. The Ball Valve or pipe fitting flange cover cannot be disassembled at will. Unless it is prepared to be connected to the pipeline, the PTFE flange su
Throttle Valve performance types and working principles
Throttle Valve, also called self-operated control valve, is a new type of Universal Valve. As the name suggests, it does not require external power supply and secondary instruments. It relies on the pressure and temperature of the medium flowing through the valve itself as energy to drive the valve to work automatically. The feedback signal (pressure, pressure difference, temperature) at the output end is transmitted to the actuator through the signal tube, which drives the valve disc to change the opening of the valve to achieve the purpose of adjusting pressure, flow, and temperature.
How to choose the appropriate diameter of the Globe Valve
The selection and determination of the caliber is mainly based on the flow capacity of the valve, that is, Cv. When designing and selecting instruments for various projects, Cv calculations must be performed for Universal Valve and Universal Valve design instructions must be provided. From calculating the Cv of the Globe Valve to determining the valve diameter, the following steps are generally required: 1.
The structure and function of Globe Valve
With the needs of industrial development, the Globe Valve appeared later than the pneumatic control valve, but its scope of use is becoming more and more extensive. Because it does not require an air source, it is more convenient to install and use. It can work as long as the power supply and control signal are connected. The following editor will introduce the structure and function of the Globe Valve.
What factors can affect the dynamic stability of the Globe Valve?
When the pressure in the protected system increases, an additional force acts on the sensing element, causing the element to move and open a gap in the Globe Valve channel, and the medium is discharged through the gap. The discharge capacity of the Globe Valve and the service life of its parts are related to the dynamic stability of the work of the Globe Valve. The vibration of the valve dis
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