Emerson's Asset Monitor edge analytics appliance improves visibility into critical assets and adds predictive analytics. Emerson introduces the AMS Asset Monitor Edge Analytics Appliance to digitally transform data and analytics for critical assets to improve operational performance and decision-making. AMS ...

Cavitation: When the static pressure of the liquid entering the first-class impeller in the pump is lower than or equal to the saturated vapor pressure at this temperature, the liquid vaporizes and produces bubbles. This vaporization and condensation produce ...

1. Pre-treatment of pickling passivation If there is surface dirt before pickling and passivating the stainless steel workpiece, it should be cleaned mechanically, and then degreased and degreased. If the pickling solution and passivation solution can not remove the grease, the presence of grease on the surface will affect the quality of pickling passivation.

Check valve, also known as check valve, is an automatic valve, which relies on the pressure of the flowing medium in the pipeline to push the valve disc to achieve the closure and opening of the valve.

Emerson's Fisher ™ Kaft Hex Valve Strict working valve trimming reduces or eliminates cavitation to improve rotary valve performance and extend service life. The Fisher Vee-Ball Rotary™ Control Valve is now available with the Cavertro ™ Hex Valve Anti-Cavitation Trim to reduce or eliminate the effects of cavitation.

Performance characteristics of electric control valves The electric control valve is composed of a combination of electric actuator and control valve, and its main features are: 1. Light weight and beautiful appearance. 2. Functionally, it can replace many products with incomplete functions, simplify the modeling, and solve the complex factory management, complex selection, ...

In the event of a malfunction, focus on which parts to inspect 1. Valve body wall For the control valve used in the occasion of high pressure difference and corrosive medium, the inner wall of the valve body is often affected and corroded by the medium, and the pressure resistance and corrosion resistance must be checked. 2 seats When the regulating valve is working, due to the infiltration of the medium...

On the issue of not having SIS on the production plant or storage tank farm, share your opinions: First of all, we have to figure out what SIS is for, in fact, SIS is not as mysterious as imagined, its function is the same as safety valves, rupture discs, etc., is a safe protective layer. That...

1. The pipeline of the pipeline centrifugal pump is matched Some users of pipeline centrifugal pumps think that this can improve the actual head, but in fact, the actual head of the pump = total head - loss head. When the pump model is determined, the total head is fixed; The loss head is mainly due to the resistance of the pipeline, and the smaller the pipe diameter ...

Inspection of the valve before installation (1) Carefully check whether the valve model and specifications meet the requirements of the drawings. (2) Check whether the valve stem and disc are opened flexibly, and whether there is any jamming and skewness. (3) Check whether the valve is damaged, and whether the thread of the threaded valve is correct and intact. ④ ...

The filter, pressure reducing valve and lubricator together form a pneumatic triplet. The filter is mainly responsible for filtering liquid water, oil and impurities in the compressed air, the pressure reducing valve is mainly responsible for controlling the system pressure, and the lubricator is responsible for the oil lubrication of the back-end components. In general, the lubricator is not used much, because ...

Emerson announces the launch of its new PACMotion servo motion control product family, providing integrated automation solutions for high-performance industrial applications. The series includes a new motion controller that connects directly to the PACSystemsRX3i programmable logic controller backplane, ...

The valve may leak during use or installation, due to frequent opening and closing during use, or not installed as required and other reasons, resulting in the valve can not work normally, the following small valve will explain the cause of valve leakage and treatment methods for you During the construction period, the valve leaked ...

With the development of large-scale complete sets of foreign technology, a series of new complete sets of equipment and stand-alone machines have emerged. The development of new sets of valve-related complete equipment is characterized by large-scale, high-parameter, high-performance automation and complete sets, which are compatible with the control mode of these complete sets of equipment. In the past 20 years, the country ...

The opening and closing parts of the butterfly valve are butterfly plates, which are driven by the valve stem and rotate 90° around its own axis in the valve body, so as to achieve the purpose of opening and closing or adjusting. It is mainly used to cut off the medium in the pipeline, with simple structure, flexible operation, fast switching, small size, short structure.

Valves suitable for medium temperature -40 °C ——- 196 °C are called cryogenic valves, and such valves generally use long neck bonnets. Adopt a long neck valve

Ball valves are generally limited by sealing materials, because ball valves are usually formed by some plastic materials, the main principle of ball valves is to rely on metal balls to adjust the gas and liquid under the action of the medium, mainly the extrusion between the metal ball and the plastic valve seat to achieve the effect of adjustment. Between the seats ...

Pressure testing method for ball valves The strength test of the pneumatic ball valve should be carried out in the semi-open state of the ball. (1) Floating ball valve tightness test: the valve is in a half-open state, one end is introduced into the test medium, and the other end is closed; Turn the ball several times, open the closed end inspection when the valve is closed ...

Fisher's broad range of sensing technology products provide customers with cost-effective process monitoring and inspection as well as process optimization Pervasive Sensing technology helps improve operational visibility to address safety, reliability, production, energy management, and environmental compliance. ...

1. Definition of dead zone In the field of instrumentation, it is also known as the insensitive area of the instrument. A finite interval in which a change in the input does not cause any perceptible change in the output of the instrument. The dead zone is mainly caused by friction and intermittent intermittent between the internal components of the instrument. In the field of valves, valves are dead ...

Peculiarity: Merit: 1. Ultra-miniaturization can be realized 2. Wide range of output torque 3. It is easy to control, and can freely use various signals such as DC, AC, short wave, pulse, etc., which is suitable for amplification, memory, logical judgment and calculation shortcoming 1. Complex structure 2. Mechanical ...