Midea Group - ChinaDCL has been our partner and supplier for over 6 years. Their electric actuators are used to drive our guide vane of our refrigeration compressors. Our central air conditioners are serviing customers in HVAC all around the world with DCL's products. They continuously provide very reliable products and very ontime service to support us.
Valve Solution Inc. - USADCL has been our ODM/OEM plant for about ten years. Their products are designed per UL and CSA standard and passed CSA certification. Very few Chinese manufacturers can produce USA's standard electric actuaotrs with such good quality, that is why we choose them as our long term partner. We are expecting DCL can keep innovation.
WESA Armaturen GmbH - GermanyWith 15 years cooperation with DCL, we are very satified with DCL's products. DCL regards quality first and their employees are very rigorous to products. They always do many experiments and tests to confirm their new designs and upgrade. We are also amazing about their wonderful quality control for the outsourcing parts.
400Nm 4~20mADC 90W Modulating Explosion proof electric actuator
|Explosive-proof Grade||Exd II BT4Gb||Protection Class||IP67|
|Ambient Temperature||-20℃~+60℃||Motor Power||90W|
- 1/4 turn operation with mechanical limits
- Fully potted controller to help protect the electronics from vibration and moisture
- High performance EMC with EFT, ESD, Surge tests
- Fail safe to full open, full close or last known position when signal lose
- All metal gears and self-locking worm gear
- Higher pressure die cast aluminum alloy enclosure to suffer explosive inside ≥ 2.2Mpa
- High-intensity position indicator with 10mm tempered glass
- Manual override with Allen wrench or handwheel
- Standard ISO 5211 multi flange mounting
- SIL certified
DCL modulating type explosion proof electric actuators are self-designed with patent, that is very compact size with resin plastic packaged control pack inside.
DCL is continuously improving the Electro-magnetic Compatibility (EMC) of actuator. DCL built a dedicated testing laboratory with comprehensive devices for over 10 years. We insist to do below tests before butch production to ensure our products with stable quality.
- Start-up torque with different voltages
- Life cycle tests with different loads and different input signal
- Effectiveness tests in extremely high and low temperature
- EFT, ESD, Surge tests with different impact voltages
- Accuracy and error tests
- Cabinet static pressure tests by pumping water
For supplier quality control, we do 100% machining precise tests of cabinet to ensure every flameproof gap and length can meet ATEX and UL standard.
During assembling, we do below tests for 100% of our products.
- Stalling torque tests after motor and gears assembling, to ensure start-up torque and rated torque
- Withstand voltage test and insulation test, to ensure safety performance
- Electronics reliability tests after electronics being installed, to ensure no bugs
- Under water sealing test, to ensure sealing grade to IP68
DCL regards quality as life. All above tests are guarantees of stable quality.
|Basic Error||not more than ±1%|
|Reciprocating Error||not more than 1%|
|Dead Space||0.5%-5.0% adjustable|
|Damping Characteristic||0 times|
|Repeating Error in Actuator||≤1%|
|Withstand Voltage Class||1500VAC 1minutes|
|Explosive-proof grade||Exd II BT4Gb|
|Installation Angle||360°at any angle|
|Electric Interface||2-M20*1.5 explosion-proof plug,clients should install corresponding explosion-proof cable connector when using according to the cable selected.|
|Optional Function||Over-torque protector/Dehumidify Heater/Passive contact switch|
|Remark||Any other input or output signal needed, please specified in purchase order.|
Control Circuit of Type E
The Servo-controller is located inside of the actuator. It receives command of the central control system and drives valve to proper opening position according to varying conditions of variables(flow,pressure,temperature,fluid level) in the pipe.
Adopt character of service of S4 intermittent type, working frequency reaches 1200 times/hour.
The unique circuit design, imported technical grade electronic parts and components and modern making technology of circuit board of the DCL ensures high quality and reliability of the servo-controller. The circuit board with resin plastic package makes shock and humidity resistance better.the unique electronic brake function makes actuator dead-beat when position is fixed, the period of damping character is zero times(standard: Less than 3.5 times)