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Malfunctions and elimination methods of electric actuators

Release Time：

2025-07-16

1. Motor winding short circuit or open circuit

2. The braking mechanism of the braking motor is not working properly

3. The eccentric mechanism of the rolling cutting motor is stuck

4. There is a problem with the stator or rotor of the motor

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Terminology and terms in the field of instrumentation

Focus on the four major performance and standard summary of solenoid valves

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Terminology and terms in the field of instrumentation

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Focus on the four major performance and standard summary of solenoid valves

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Differences between hard-sealed ball valves and soft-sealed ball valves in terms of operating environment

Differences between hard-sealed ball valves and soft-sealed ball valves in terms of operating environment

The primary differences between hard-seal ball valves and soft-seal ball valves in operational environments are evident in aspects such as sealing materials, temperature resistance, pressure ratings, and medium compatibility:

How to distinguish between hard seals and soft seals in ball valves

How to distinguish between hard seals and soft seals in ball valves

The distinction between hard seals and soft seals in ball valves is primarily based on sealing materials, operating conditions, and application scenarios.

Can the ball of a hard-sealed ball valve be made into a hollow ball?

Can the ball of a hard-sealed ball valve be made into a hollow ball?

The ball of a hard-sealed ball valve typically features a hollow structure, specifically a hollow ball design with flow channels.

What are the hardening methods for the ball and seat of a metal hard-sealed ball valve?

What are the hardening methods for the ball and seat of a metal hard-sealed ball valve?

The hardening methods for the ball and seat of metal hard-sealed ball valves primarily include the following:

How is the ball of a hard-sealed ball valve generally treated?

How is the ball of a hard-sealed ball valve generally treated?

The hardening treatment methods for the ball of a hard-sealed ball valve primarily include surface hardening, chemical heat treatment, thermal spraying, and weld overlay, among others.

Temperature range of low-temperature valves

Temperature range of low-temperature valves

The temperature range of cryogenic valves is typically between -196°C and -29°C, with some ultra-cryogenic valves extending to -253°C or even lower. The specific range varies depending on the valve type and application.

Direction of pressure relief hole for low-temperature valves

Direction of pressure relief hole for low-temperature valves

The direction of the pressure relief hole in cryogenic valves should generally be toward the upstream side when the valve is closed to ensure safe release of abnormal pressure generated by the vaporization of the medium inside the valve cavity.