Safety Lockout Air Relief Valves | McMaster-Carr

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About Air Preparation

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Compressed Air Control Valves

Safety-Lockout Air On/Off Valves

Safety-Lockout Air On/Off Valves

A padlock locks the handle of these valves in the shut-off position so you can disconnect air tools safely.

Quiet Safety-Lockout Air On/Off Valves

These valves have a muffler to reduce exhaust noise. A padlock locks the handle in the shut-off position so you can disconnect air tools safely.

Safety-Lockout Single-Action
Air Directional Control Valves

Safety-Lockout Single-Action Air Directional Control Valves

To prevent accidental start-up, these valves can be locked in their off position with a padlock. They create one action, such as extending a cylinder.

Key-Operated Single-Action
Air Directional Control Valves

Because they require a key to operate, you can limit who is able to adjust these valves. They create one action, such as extending a cylinder.

Key-Operated Two-Speed Two-Action
Air Directional Control Valves

Because they require a key to operate, you can limit who is able to adjust these valves. They create two actions and have two exhaust ports, which allows you to control the speed of each action by attaching a flow control valve to each exhaust port. Also known as 4-way and 5/2 valves.

Compressed Air Systems

Safety Lockout Valves for SMC Modular
Compressed Air Filter/Regulator/Lubricators (FRLs)

Safety Lockout Valves for SMC Modular Compressed Air Filter/Regulator/Lubricators (FRLs)

Prevent accidental start-up when servicing equipment.

Safety Lockout Valves for Festo Modular
Compressed Air Filter/Regulator/Lubricators (FRLs)

Prevent accidental start-ups while you service air preparation equipment.

Safety Lockout Valves for Wilkerson Modular
Compressed Air Filter/Regulator/Lubricators (FRLs)

Safety Lockout Valves for Wilkerson Modular Compressed Air Filter/Regulator/Lubricators (FRLs)

Prevent accidental start-up when servicing equipment.

Safety Lockout Valves for Aventics Modular
Compressed Air Filter/Regulator/Lubricators (FRLs)

Safety Lockout Valves for Aventics Modular Compressed Air Filter/Regulator/Lubricators (FRLs)

Keep your air preparation equipment from turning on during maintenance.

Safety Lockout Valves for Norgren Modular
Compressed Air Filter/Regulator/Lubricators (FRLs)

Safety Lockout Valves for Norgren Modular Compressed Air Filter/Regulator/Lubricators (FRLs)

Prevent accidental start-up when servicing equipment.

Safety Lockout Valves for ARO Modular
Compressed Air Filter/Regulator/Lubricators (FRLs)

Safety Lockout Valves for ARO Modular Compressed Air Filter/Regulator/Lubricators (FRLs)

Prevent accidental start-up when servicing equipment.

Safety Lockout Valves for Parker Modular
Compressed Air Filter/Regulator/Lubricators (FRLs)

Safety Lockout Valves for Parker Modular Compressed Air Filter/Regulator/Lubricators (FRLs)

Prevent accidental start-up when servicing equipment.

Tamper-Resistant Padlockable Covers for
Parker Modular Compressed Air Regulators

Lock these covers over your regulator knob to prevent unwanted pressure changes. They work with any Parker regulating component in the P31 or P32 series.

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)