Wireless remote valve control system - Wuzhong instrument

1. According to the use occasion and use of the valve, confirm the driving method: manual, electric, pneumatic, and hydraulic. 2. Selection of manual methods: The standard of ball valve and butterfly valve "DN150 can be driven by a handle; Standard DN200 should be used to drive worm gearbox. b. Gate valve ...

The actuator of the control valve has pneumatic type, electric type and electro-hydraulic linkage type, and the pneumatic equipment is divided into barrier type and cylinder type. Depending on the action when the operating signal and the drive source disappear, the actuator has a forward type, a reverse type, a non-directional type, and a persistent type. The positive type is used in the operation signal and drive ...

When the gate valve is closed, the sealing surface can only rely on the medium pressure to seal, that is, only rely on the medium pressure to press the sealing surface of the ram to the valve seat on the other side to ensure the sealing of the sealing surface, which is self-sealing. Most gate valves are forcibly sealed, that is, when the valve is closed, it is necessary to rely on external force to forcibly ...

The valve is a control component in the fluid transportation system, which has the functions of shut-off, conditioning, diversion, preventing backflow, stabilizing pressure, diverting or overflowing pressure relief. Valves for fluid control systems, from the simplest shut-off valves to the most chaotic valves used in automated control systems, range from ...

Classified by role and use (1) Shut-off valve: The shut-off valve, also known as the closed-circuit valve, has the effect of turning on or cutting off the medium in the pipeline. Shut-off valves include gate valves, globe valves, plug valves, ball valves, butterfly valves and diaphragms. (2) Check valve: Check valve is also known as check valve or check valve.

1. Introduction to gate valves Gate valve refers to the valve in which the opening and closing parts (rams) move in the straight direction of the medium (channel axis) to complete the opening and closing. Among the various types of valves, gate valves are the most widely used one. Gate valves are mainly used as shut-off medium in pipelines, i.e. ...

1. The corrosion of the valve is usually understood as the damage to the metal material of the valve under the chemical or electrochemical environmental effect. Because the corrosion phenomenon is presented in the spontaneous interaction between the metal and the surrounding environment, therefore, how to isolate the metal from the surrounding environment or more use non-...

Generally, the selection of control valve is mainly based on the nature of the medium, process parameters, use requirements, etc. 1. The properties of the medium should be clearly attributed to which of the following: (1) General fluids (2) High viscosity, fluids containing suspended solids, fibrous and other fluids (3) Toxic or high...

A safety valve is an automatic valve that uses the medium's own force to expel an additional amount of fluid without any external force to avoid the pressure exceeding the additional safety value. When the pressure has recovered to normal, the valve closes again and prevents the continuous flow of the medium. (TSG ZF001-2006)

The structure of the thermocouple is to ensure the stable operation of the thermocouple, and the requirements are as follows: The two thermoelectrodes that make up the thermocouple must be strong on the weld to maintain good quality.

A low-power electromagnetic microdisplacement controller consisting of a coil backbone, a coil wound around a coil skeleton with a control circuit and a terminal block, and a coil core, characterized by: The coil core is associated with two magnetic columns at both ends ...

The process of shell experiments and seal experiments done by turbine fixed ball valves in some artificial environments is as follows. Double blocking and discharge function of turbine fixed ball valve: the turbine ball valve is fixed by using tension spring preload floating valve seat, when the valve is in two different states, fully open and fully closed, the fluid is ...

The mechanical deflection angle of the movable part of the surface can be measured and converted, and the size to be measured is directly indicated by the indicator, so it is also called the direct-reading appearance. According to the working principle, the indication surface can be divided into magnetoelectric system appearance, electromagnetic system appearance, electric system appearance and ...

1. Smooth mechanism Smoothing is to add a smoothing agent between the two conflict surfaces of relative motion, so that a smooth film is formed between the two conflict surfaces, and the dry conflict appearance that is originally directly touched is separated, and the dry conflict is a conflict between the smooth agent molecules, so as to reduce the conflict and reduce wear, ...

1. Before the equipment, you should carefully read the operation manual of the product, check whether the product can fully meet the application needs, understand the key to the equipment, and prepare for the operation. 2. Check whether the parameters marked on the nameplate can be the parameters of the selected product and whether they can be consistent with the instructions. 3. Acceptance ...

Now the valve market is mixed, and illegal traders pretend to be innovative valves to be shoddy in order to make huge profits, which brings great safety hazards to the device project. Therefore, it is necessary to introduce to us the inspection of innovative valves. Now the valve market dealers mainly exist in the valve counterfeiting ...

Features of Gate Valve: Light weight: The body is made of high-grade ductile iron, and the weight is about 20%-30% less than that of the traditional gate valve, and the device is easy to repair. Flat-bottomed gate seat: The traditional gate valve is often washed by water and the pipe is due to foreign objects such as stone, wood, cement, iron filings, etc.

Pneumatic butterfly valves are usually composed of a combination of pneumatic actuators and valve bodies and some accessories after debugging. This article first introduces the precautions for the on-site application of pneumatic butterfly valves. 1. The control cabinet sends a signal that the valve does not move, and the pneumatic conditioning butterfly valve is in the device locator after on-site investigation.

The selection of control valve is a very complex thing, in order to ensure the use of control valves, customers only need to provide process parameters and use requirements to valve manufacturers, because valve manufacturers have rich experience in valve use, so they can provide customers with the best cost-effective valve products. ...

The hydraulic maintenance module uses the hydraulic locking method to control the inlet and outlet oil circuits and load oil circuits of the electro-hydraulic servo valve. The module has the following three functions: 1. Locking function When the system is in normal condition, the hydraulic lock is in the guide...