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Terminology and terms in the field of instrumentation

Release Time：

2025-07-16

Instrumentation
Analytical Instruments - Analytical Instruments
Bellows pressure gauge - bellows pressure gauge
Control valve - control valve
Differential Transformer Displacement Transformer
Digital Signal Processor - Digital Signal Processor
Electromagnetic flowmeter
Electric Unit Component Instrument - Electrical Unit Component Instrument
Embedded PID Parameter Tuner - Embedded PID Parameter Tuner
Embedded Web Sensor - Embedded Web Sensor
Hall displacement sensor - Hall displacement transducer
Inductive displacement sensor - Inductive displacement transducer
Infrared thermometer - infrared thermometer
Intelligent digital display controllers - Intelligent digital display controllers
Intelligent Instrument - Intelligent Instrument
Level measurement instrument - Level measurement instrument
Magneto oxygen analyzer
Network Instrument - Network Instrument
Paperless Recorder - Paper less Recorder
Recorder - Recorder
Safety Instrumented System (SIS)
Sensor - Sensor
Smart Sensor - Smart Sensor
Intelligent transmitter - smart transducer
Ultrasonic level sensor - Ultrasonic level sensor
Ultrasonic Level Meter - Ultrasonic Level Meter
Virtual Instrument - Virtual Instrument
Electrics
Frequency Conversion Control
Inverter - Inverter
Power electronic devices - Power electronic devices
Pulse width modulation
Servo drive - servo drive

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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.