PTC Overheating Protector DN50 Explosion Proof Valve Actuator

Thermal overload protection explosion proof electric actuator / PTC overheating protector

Features

• 360° turn for 50Nm and 90° for other torque
• Fully enclosed squirrel-cage asynchronous motor with F-class insulation rating
• Auto reset thermal switch embedded in the motor winding – trips
• Rugged IP68 and type 4X aluminum alloy with thermally bonded polyester coating
• Explosion proof grade ExdIICT4 for ATEX/Zone system and Group C, D T4 for Division system
• Self-locking all metal gear train
• Two auxiliary limit switches to confirm valve position
• Manual override with handwheel or wrench
• CSA certification per UL and CSA standard/ATEX/CE/RoHS 3.0/SIL 3

Description

DCL explosion proof electric actuators are widely used for explosive gases environment. High temperature may ignite the flammable gases out of actuator. T4 grade requires the highest enclosure outside surface’s temperature must be less than 135℃(300F), in whatever conditions. Considering a buffer for errors may happen, the temperature set for motor power down is 125℃(282F). PTC overheat protector is embedded in the motor winding-trips, where is the highest temperature rise part of whole actuator, instead of out of motor, to 100% ensure outer surface temperature will not go beyond required T4 grade.

On the other hand, motor must be proper designed and quality controlled. Motor’s power, wire diameter, number of coil turns, magnet material and capacitance connect to motor will influence the motor’s temperature rise. So professional actuator manufacturer must design its own motors with specifications that can best match with its gear drives. General motor will cause frequently power off with heavy duty rate and can hardly satisfy explosion proof requirements for temperature.

Specification:

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Founded in 2001, Dynamic Corporation Limited(DCL) is a national high-tech enterprise, which is engaged in R&D, manufacturing and sale of Electric Actuator, Electric Valve and its Automation Control System. The main leading product, DCL Series Electric Actuator is featuring the compact construction, exquisite appearance, smart control, remarkable performance,easy operation and so on.

DCL series electric actuators are widely used in various industrial field, such as HVAC, refrigeration, petroleum, chemical, electric power, smelting, energy, pharmaceutical, paper-making, water treatment, food, brewage, shipbuilding and combustion system etc. DCL has estabilished stable partnership with lots of world leading companies in each industry to provide best flow control solutions. Every year, DCL also exports over 10000 units self-produced electric actuators and electric valves to USA and Germany.

In the past 19 years, DCL has winned high trust-worthy from customers. Many customers with many years practices confirm that our products are outstanding in stable quality, reliability, durability and after-sale service.

1. Manufacture per ISO9001:2015 standard with certification

2. Products are CE marked/ATEX marked with QAN by SGS group

3. Products are certificated per UL and CSA standard by CSA group

DCL does not only provide good quality products, but also present responsibility to the society and community. All our employees regard quality first. Quality control has a long uninterrupted way to go. Quality first is our management culture and the foundation of our company.