Explosion-Proof Electric Actuators

Explosion-Proof Electric Actuators are designed for safe valve actuation in hazardous environments. These units are DC powered and have fail-safe features that return to the open or closed position if there is a power failure.

They are commonly used in oil, chemistry, water treatment, paper making, shipbuilding and power station. They can control ball or butterfly valves that rotate from 0 to 270 degrees.
Moog

Moog’s electric actuators are the core building blocks of many systems. They are designed and qualified to meet a wide range of demands. They use brush type or rare earth DC motors, magnetic encoders, and position loop control electronics. They are ideal for aerospace and unmanned airborne platforms. They offer higher performance and lower weight than hydraulic units.

Unlike hydraulic actuators, these electric actuators don’t need pressurized oil lines and can be used in a variety of harsh environments. They also offer more precision and longer life than traditional hydraulics.

Moog’s electrical actuators are a cost-effective solution for applications that require high torque in a small envelope. They can be paired with a servo drive to provide the same functionality as a traditional hydraulic actuator. In addition, they can reduce power consumption and maintenance costs. In the aerospace industry, Moog’s electric actuators can improve productivity and reduce weight for unmanned airborne vehicles and missiles. This can help meet regulatory requirements and save on fuel costs.
Limitorque

A wide variety of mechanical, hydraulic, pneumatic and electrical actuators alter motion to control valves in a diverse range of applications. However, electrical actuators have the unique advantage of offering more torque per dollar than other types of devices.

Limitorque electric actuators have been making life easier for industrial valve and damper applications since 1929. Their world-class designs help reliably drive multiturn and quarter-turn operating applications for valves and dampers.

IPT reps are available around the clock to handle sales and repairs for Limitorque actuators and gearboxes throughout Southern California, Arizona, New Mexico, and Southern Nevada. IPT is a factory-authorized Limitorque Blue Ribbon Repair and Service Center.

Use of force in excess of ratings and/or additive force devices (cheater bars, wheel wrenches, pipe wrenches) on the actuator handwheel or declutch lever may result in serious personal injury and damage to the actuator and valve. In addition, removing or opening the actuator switch compartment without powering down and securing the actuated valve will create a high-pressure vessel.
Valworx

Valworx is a leading manufacturer of electric actuators for a variety of valve automation applications. Their 5618a series of explosion-proof actuators are ideal for use with flanged and wafer valves. They can be throttled via 4-20mA control signals or used in simple on/off models. The actuators also have position indicators, which help the operator to confirm that the valve has positioned correctly.

These quarter-turn actuators are designed to mount onto a wide range of valve types. The mounting pattern uses a standard ISO5211 bolt pattern, which makes them easy to install. These actuators are also lightweight and can withstand temperature changes.

They are a clean source of energy and offer higher accuracy compared to nonelectric rotary actuators. However, they still have mechanical nonlinearities and saturation problems [44]. This article highlights some important aspects of the actuators’ performance parameters and evolution. It also discusses opportunities in optimizing the actuators for use in renewable applications. A few examples include: trough-distributed solar field collectors; rotary actuators for geothermal systems; portable wind energy applications; and wave energy applications.
Hearken

Electric actuators are used to operate rotary valves like ball, butterfly, plug, and dampers. These actuators are available in various sizes and power ratings. They are also designed for safe operation in hazardous locations. They can be powered by DC, AC, or a combination of both. They are highly intelligent and provide high protection against hazardous conditions.

Compared to nonelectrical actuators, electric actuators offer many advantages: they are direct driven without auxiliary accessories (motors, hydraulic tanks, and controlling valve pipes) and require less space [16]. They also have lower response times, making them suitable for renewable energy applications.

Electric actuators are available in a variety of shapes and sizes, including two-degree-of-freedom spherical and linear models. Choosing the appropriate model can help you save time and money on installation and commissioning. These actuators are also easier to maintain than other types of actuators. They can be operated remotely, and have a high level of accuracy and repeatability.