Description

Explosion-proof IP68 Actuator Overview

The explosion-proof IP68 actuator multi-turn BD100-IIC series represents a paradigm shift in industrial valve control. Designed and manufactured by Bonray—a leading Chinese factory specializing in explosion-proof and high-durability actuation — this actuator family delivers precise torque management from 50 N.m to 3,000 N.m (expandable to 30,000 N.m with a W-series gearbox). Unlike conventional devices, this multi-turn intelligent actuator integrates a non-intrusive design, absolute encoding sensors, and a user-friendly Chinese/English dot-matrix LCD. It serves critical infrastructure in petrochemical, power generation, marine, and municipal water treatment. The factory’s IP68 dual-seal housing ensures operation under 2 meters of water for 48 hours, making this multi-turn intelligent actuator a reliable choice for both indoor and submerged outdoor installations. Furthermore, the device supports Ex db IIC T4 Gb gas explosion-proof and Ex tb IIIC T130°C dust-proof ratings, allowing safe deployment in Zone 1, 2, 21, and 22 hazardous areas.

Does the multi-turn intelligent actuator require a battery backup to retain valve position data?

No. The BD-IIC/BDM-IIC series uses a patented BM18 absolute encoding position sensor. This non-contact sensor maintains valve position permanently, even during total power loss, eliminating battery replacement hazards and memory corruption.

Explosion-proof IP68 Actuator Features

1. Non-Intrusive Magnetic Switch Design: You adjust all parameters using an external setting tool or rotary knob. Magnets activate Hall sensors inside the sealed housing, so you never open the electrical cover. This keeps dust and moisture out of the multi-turn intelligent actuator.

   

   

2. Dual-Seal Technology: The terminal box uses a double-seal construction. Even when you remove the cover for wiring, a secondary seal blocks contaminants. This factory-engineered feature guarantees IP68 rating for the entire multi-turn intelligent actuator.

3. Lifetime Lubrication: High-grade grease fills the gear train. You never need to add oil or grease, reducing maintenance costs over the 10+ year life of the multi-turn intelligent actuator.

4. Planetary Gear Transmission: The actuator uses a helical-plus-planetary gear system instead of inefficient worm gears. This improves mechanical efficiency by over 30%, reduces wear, and allows simultaneous manual/electrical operation without a changeover mechanism.

5. Absolute Torque Sensor: A patented non-contact absolute encoder measures real-time output torque. You can set torque protection limits (30%-100%) via the menu, protecting your valve from jamming.

6. ESD Override: Emergency Shutdown signals bypass local and remote commands. You configure the multi-turn intelligent actuator for “close on ESD,” “open on ESD,” or “lock in place.”

Model and Type

The explosion-proof IP68 actuators multi-turn BD100-IIC series comprises three variants: on-off type, intermittent modulating type, and high-frequency modulating type.

BD100-IIC On-Off Explosion-proof IP68 Actuator Multi-turn – This model does not support proportional control. It is designed for applications where the operating frequency does not exceed 60 starts per hour, continuous running time is no more than 15 minutes, and the duty cycle remains at or below 33.3%.

BD100-IIC Intermittent Modulating Explosion-proof IP68 Actuator Multi-turn – This model features proportional control capability. It is suitable for operating frequencies up to 60 starts per hour (three-phase versions can achieve short-term frequencies as high as 600 starts per hour), with a maximum continuous running time of 15 minutes and a duty cycle not exceeding 33.3%.

Specifications