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April 10, 2025
Types of Lockout Devices Explained: A Complete Guide to LOTO Safety Equipment
Lockout/Tagout (LOTO) devices are essential safety tools used to prevent accidental equipment startup during maintenance and servicing. In this guide, we will explore the different types of lockout devices, how they work, and why they are critical for workplace safety.
Lockout devices are physical tools used to isolate hazardous energy sources such as electricity, gas, hydraulic pressure, or mechanical movement. They are part of the Lockout/Tagout (LOTO) safety procedure, ensuring that machinery cannot be re-energized while maintenance is being performed.
Lockout devices play a crucial role in industrial safety and compliance.
Key Benefits:
Prevent accidental machine startup
Protect workers from hazardous energy
Ensure OSHA compliance
Reduce workplace injuries and downtime
The lockout/tagout process follows a standardized safety procedure, including:
Shut down the equipment
Isolate all energy sources
Apply lockout devices to control points
Secure devices with safety padlocks
Attach warning tags (Tagout)
Verify isolation before starting work
These are security padlocks used to lock LOTO devices in place . While they can be keyed alike, this should be avoided for safety reasons. If this is unavoidable their distribution should be limited among employees .
These lockout devices are designed to prevent power from being restored or re-energized while equipment is being serviced. Once the power is shut off, the electrical lockout device fits over the switch and is often held in place by a padlock .
This type of lockout device isolates energy in pipes by preventing valves from being opened which could affect any pipes or equipment that are being worked on downstream. The device is fixed over the closed valve and held in place by a padlock .
For harder-to-lock devices such as handles and gate valves, cable lockouts provide safety and security during maintenance and repairs. The cable passes through the handles or valves and is pulled tight, then locked in place using a padlock .
These devices attach to the steering wheel of a vehicle that is being maintained and repaired. They generally do not disable the steering wheel but rather display a warning not to use the vehicle while it is being worked on .
These cover the bolts on pipeline flanges to prevent them from being opened while the pipeline is being worked on. A padlock holds the flange lockout in place to prevent it from being accidentally removed .
This type of lockout device covers valve handles and handwheels to prevent access to the main tank while work is ongoing. They are held in place with a padlock to protect them from any unauthorized access .
These lockout devices secure pneumatic fittings and regulators in place to prevent equipment from being energized. They are held in place by a padlock to ensure the pneumatic fittings do not connect to any pressurized air sources .
Lockout hasps allow multiple workers to service the same equipment at one time. The hasp is applied to a lockout and has multiple shackle holes to allow other lockout devices to be attached. Once all lockout devices are removed the equipment can become operational again .
These boxes are used to hold the keys used to lock padlocks in place that secure lockout devices during servicing. This provides a control point where each worker can select a padlock and key needed for maintenance or repair work .
When a lockout device is in use, these tags are used to alert workers that equipment is out of service. They are placed over the shackle of the padlock and are part of the OSHA standard for the Control of Hazardous Energy (Lockout/Tagout) .
Lockout stations allow you to store multiple lockout devices in one location for easy access. Stations are often wall-mounted or sit on the counter, while kits allow you to transport multiple devices to any location.
Choosing the right lockout device depends on the type of energy source, the design and size of the equipment, the number of workers involved, and compliance with safety regulations such as OSHA.
Lockout devices are widely used in industries such as manufacturing, oil and gas, electrical maintenance, chemical processing, and construction to ensure safe equipment servicing and prevent accidents.
Understanding the different types of lockout devices is essential for maintaining workplace safety and regulatory compliance. By implementing proper LOTO procedures and using the right lockout equipment, companies can significantly reduce the risk of accidents and protect their workforce. If you need lockout devices, welcome to contact us. We can provide high-quality service and competitive prices.
Q1: What is the difference between lockout and tagout?
A1: Lockout uses physical restraints to secure equipment, while tagout uses warning labels. Best practice is to use both together.
Q2: Can lockout padlocks be keyed alike?
A2: They can be, but it is not recommended due to safety risks. Each worker should have a unique key.
Q3: Is LOTO required by law?
A3: Yes. OSHA requires lockout/tagout procedures to control hazardous energy in workplaces.
Q4: What types of energy need to be locked out?
A4: Electrical, mechanical, hydraulic, pneumatic, chemical, and thermal energy sources.
Q5: What if equipment cannot be locked?
A5: Alternative safety measures such as tagout procedures or custom lockout solutions must be used.
Apr. 02, 2026
How to Choose the Right Lockout Kit?
