EN15714-2 Classificatie van elektrische actuatorbesturing (bedrijfseenheid)

Control Duty Classifications: Class A: ON-OFF Type (On/Off) Function: The actuator is required to drive the valve through its entire stroke from fully open to fully closed (and vice versa). Typical Use: Applications where valves are either fully open or fully closed. Class B: Fine-Tuning/Positioning Adjustment Type Function: The actuator occasionally moves the valve to […]

Wanneer moet je een procesbesturingsactuator kiezen?

Application Background of Process Control Actuators In many process control systems, it is necessary to achieve highly accurate and consistent control of the flow rate of liquids or gases through an automated control system (PLC/DCS). Due to the high precision required, such systems often need to make continuous and precise small adjustments to control valves […]

Elektromagnetische interferentietesten voor elektrische actuatoren (EFT)

The Increasingly Harsh Electromagnetic Environment in Industrial Sites As industrial electrification and intelligence continue to advance, an increasing number of high-power electrical devices (such as kilowatt-level motors, frequency converters, and inverters) are being integrated into industrial process control systems. Consequently, the electromagnetic environment in industrial sites is becoming more complex. In such a challenging electromagnetic […]

De ontwikkelingstrends van digitalisering en netwerken in elektrische kleppen

Rotork bespreekt de digitalisering van elektrische kleppen. Rotork heeft onlangs in het tijdschrift European Control Engineering het belang van digitalisering voor de automatisering en besturing van kleppen besproken. De technologie van het Industrial Internet of Things (IIoT) maakt gebruik van elektronische apparaten zoals sensoren om gegevens te verzamelen en te delen, en benut de rekenkracht van […]

DCL Wuhan Huayi Intelligent Control neemt deel aan de 20e Internationale Chemische Industrie Tentoonstelling.

DCL nam deel aan de 20e Internationale Chemische Industriebeurs en presenteerde daar hun elektrische actuatoren, IoT-gebaseerde actuatortoepassingen en geïntegreerde vloeistofregeloplossingen voor de chemische industrie. Beursdetails: Data: 4 t/m 6 september 2023 Locatie: Shanghai New International Expo Centre Stand: N5H03 Het evenement bood experts in de chemische industrie een uitstekende gelegenheid om kennis te maken met […]

Veelvoorkomende soorten kleppen en hun kenmerken

Butterfly Valve Working Principle: A butterfly valve uses a disc to control the flow of fluids or gases. The disc is mounted on a shaft, and when the handle is turned, the disc rotates 90 degrees to allow or block the flow. Features: Simple structure, compact size, low flow resistance, commonly used in large flow […]

Beschermingsclassificaties van behuizingen (UL, CSA, NEMA)

The protection ratings for enclosures defined by UL, CSA, and NEMA are categorized as follows. While the classifications are generally similar, there are minor differences in the details, so it is advisable to refer to the specific standards for more precise information. Type Classification Definition 1 General For indoor use, providing protection for enclosed components […]

IP-classificatie voor stof- en waterdichtheid van de actuator

IP Protection Rating DefinitionThe IP (Ingress Protection) rating defines the protection level of a product’s enclosure against the intrusion of solid objects (such as tools, fingers, dust, etc.) and the ingress of water (from condensation, washing, immersion, etc.). The two digits following “IP” indicate the protection levels for solid objects and water intrusion. The first […]

How Actuators with Bus Functions Work – Modbus, CAN, Ethernet, Profibus

 When you install a DCL electric control valve with bus functionality on a pipeline, you can control a set of electric control valves through the bus (Modbus, CAN, Ethernet, Profibus) to achieve synchronized control of the valve cluster. The control system communicates with the actuator via a bus communication protocol, sending commands to control the […]

DCL Actuator Certifications

The DCL electric actuator complies with the following certifications: CE – Conformité Européenne (European safety and environmental standards) RoHS – Restriction of Hazardous Substances CSA – Canadian Standards Association certification IAF – International Accreditation Forum CNAS – China National Accreditation Service SIL – Safety Integrity Level certification Exd II CT4 Gb – Explosion-proof certification for […]