Overview
The Norgren T72E-3AA-P1N is a 3/2 pneumatic lockout valve from the Excelon Series, engineered for OSHA compliance in the USA market. This modular valve is easy to install inline or with other Excelon products and can be locked in the closed position only. The T72E model features a 3/8″ port size with a yellow actuator for OSHA identification. The T72E-3AA-P1N is ideal for applications requiring safe machine shutdown and lockout procedures.
Key Features
- Helps machines conform to OSHA lockout regulations, blocking inlet air flow and exhausting downstream air in the closed position
- EXCELON design allows in-line installation or modular installation
- Exhaust outlet is not tapped (yellow slide)
- Modular installations with EXCELON 72, 73, and 74 series can be made to suit particular applications
- Slide actuator for reliable manual control and positioning
- Compact, durable zinc housing construction
Technical Specifications
The Norgren T72E-3AA-P1N delivers consistent performance across demanding industrial environments:
- 2 Position, 3/8″ Inlet, NPT Thread, 2 Port, 8 CV Rating, 250 Max psi
- Port Configuration: 3/2 (3-port, 2-position)
- Weight: 0.39 kg
- Thread Form: PTF (Parallel Threaded Female) or NPT
- Port Size: 3/8″
- Actuator Type: Slide (yellow for OSHA identification)
- Maximum Operating Pressure: 250 psi
- Flow Coefficient: 8 CV
Typical Applications
The T72E-3AA-P1N is widely used in industries requiring safe machine lockout and shutdown:
- Manufacturing assembly lines with pneumatic actuators
- Industrial machinery requiring OSHA-compliant lockout procedures
- Packaging and processing equipment
- Automated production systems with modular pneumatic control
- Machine maintenance and service operations
- Any pneumatic system requiring safe isolation of downstream pressure
Compatibility & Replacements
Compatible With
- Norgren Excelon 72 series valve modules
- Norgren Excelon 73 series manifolds
- Norgren Excelon 74 series components
- Standard 3/8″ NPT and PTF pneumatic systems
- OSHA lockout and tagout (LOTO) safety systems
- Industrial pneumatic control circuits
Replaces / Drop-In Replacement For
- Norgren T72E-3GA-P1N (ISO G parallel thread version)
- Other T72E 3/8″ lockout valves with equivalent PT specifications
Works With
- Norgren Excelon modular pneumatic systems
- Standard industrial pneumatic circuits and control panels
- OSHA machine safety and lockout procedures
- Pneumatic actuators and cylinders rated for 250 psi maximum








