The main function of Wuzhong instrument hydraulic protection module

The normal operation of the appearance is inseparable from the protection of the site, especially some important process links, once there is a leak, it will greatly affect the quality of the product, resulting in heavy losses. First of all, on important tanks in general ...

Knife gate valve is a kind of valve, which is called knife gate valve because of its different structure. It has outstanding circularity through the use of some special media, such as some viscous media, granular media, etc. It solves some of the problems of modern equipment and becomes an indispensable component of modern equipment ...

On December 2, 2019, the China-Russia East Route Natural Gas Pipeline Project was officially put into operation. The large-diameter pressure regulator jointly developed and manufactured by Wu Zhong and China Petroleum Pipeline Branch was put into use at Changling Natural Gas Transmission Station in Jilin Province and successfully ventilated. ...

1. Units and scales (scales) The scale (scale) unit of the temperature instrument is uniformly selected as Celsius (°C). 2. Detect (measure) the insertion length of the component The selection of the insertion length should be based on the detection (measurement) of the component insertion.

1. In the case of interlocking action of pneumatic valve equipment, the valve orientation should have the following situations: The EC air supply is discarded and the valve is in a closed position FO__ air source is discarded, and the valve is in the opening position FL-_ The air source is lost, and the valve is in the time position and has been insisting FL ...

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.

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 ...

1. The valve position of the electric actuator is lost: 1) Battery power is lost When the incremental encoder is selected to measure the stroke, it is necessary for the fulfillment mechanism to have a battery as an auxiliary power supply, the AC power supply disappears, and the change of the valve position of the electric actuator can still be detected by the incremental encoder.

(1) Under normal circumstances, the valve is not tested for strength, but after repair, the valve body and bonnet or the valve body and bonnet damaged by corrosion should be tested for strength. For safety valves, their constant pressure and return pressure and other experiments should be in accordance with their instructions and the rules of the relevant procedures. ...

1. Corrosion of valves is usually understood as the damage to the metal materials of valves under chemical or electrochemical environmental effects. Because the corrosion phenomenon occurs in the spontaneous interaction between the metal and the surrounding environment, therefore, how to block the metal from the surrounding environment or more use of non-...

1) Casting: a kind of data molding method. The molten metal liquid is placed into the mold of the desired shape, allowed to condense, cooled and then removed from the product. 2) Forging: After heating the metal profile ...

Pneumatic butterfly valve additional code: BD insulation butterfly valve, SD telescopic butterfly valve, TLD desulfurization butterfly valve, DH check butterfly valve, DKS fast butterfly valve, FDBD square louver butterfly valve; Butterfly valve code: D indicates butterfly valve Transmission code: manual ...

Routine maintenance of pneumatic conditioning valves When the conditioning valve is packed with graphite-asbestos, lubricating oil should be added to the packing once in about three months to ensure that the conditioning valve is flexible and easy to use. If it is found that the pressure cap of the packing is very low, the packing should be compensated, such as the PTFE dry packing is found to be hardened ...

Valve application requirements (1) General gate valves, ball valves, and globe valves are prohibited from dispatching according to their structural characteristics. However, in process design, it is widely used for mediation. Because of the scheduling application, the valve seal has been in a throttling state for a long time, and the impurities in the oil have washed the seal, endangering the seal.

The self-operated conditioning valve, also known as the self-operated control valve, relies on the pressure and temperature of the medium flowing through the valve as the energy source, and uses the reaction signal (pressure, pressure difference, temperature) at the output end of the valve to be transmitted to the actuator through the signal tube, and drives the valve disc to change the opening of the valve and reach the conditioning pressure.

1. Flange connection Flange connection: Flange connection refers to the detachable connection of flanges, gaskets and bolts as a group of combined sealing structures. Pipeline flange refers to the flange used for piping in pipeline equipment, and refers to the inlet and outlet flange of equipment used in equipment.

Two-position five-way solenoid valve is a pneumatic component commonly used in gas-electric automatic control system, its main use is to control the double-acting cylinder to complete the automatic switching of the air circuit, widely used in the pneumatic equipment of various industrial parts, to complete the automatic control and long-distance operation in the production process, it has the ability to ...

From simple shut-off valves to a wide range of valves in very complex automatic control systems, the varieties and standards are very complex. The valve can be used to control the activities of various types of fluids such as air, water, steam, various corrosive media, oil, liquid metal and other media. It is understood that from 2015 to 2018, ...

1. The valve positioner is divided into pneumatic valve positioner, electrical valve positioner and intelligent valve positioner according to the input signal. (1) The input signal of the pneumatic valve positioner is a standardized gas signal, for example, the 20-100kPa gas signal, and its output signal is also a standardized gas signal. （ ...

1. Accounting for traffic The calculation of the flow rate can also be confirmed by referring to the capabilities of fluid handling machinery such as pumps and compressors. Sometimes, a combination of methods is used to confirm. 2. Confirmation of the differential pressure (1) Put the conditioning valve before and after ...