Norgren 5VS-421-000 Rotowink Pressure Indicator 1/8 Nptf

Product Description

The NORGREN 5VS-421-000 is a Rotowink pressure indicator designed to provide a quick visual confirmation of system pressure status in pneumatic and fluid power applications. The indicator mounts through a bottom port connection with a 1/8 inch female NPTF thread and displays system state through a color-coded visual flag: green when unactuated and red when actuated. It handles inlet pressures from 10 to 125 psi and is rated for service up to 150 degrees F. Licensed plumbers, pipefitters, and pneumatic system technicians install this type of indicator where a fast, tool-free pressure status check is needed at the point of connection.

The 5VS-421-000 is suited for use in compressed air, pneumatic control, and general fluid power systems where a local visual indication of pressure presence or absence is required. The bottom-mount port orientation allows the indicator to seat flush against manifolds, valve bodies, or panel-mounted assemblies. Typical applications include pneumatic control panels, air preparation assemblies, and fluid power distribution systems in both light industrial and commercial service environments.

Key Features

• Rotowink-style visual indicator displays green when unactuated and red when actuated for at-a-glance system status
• Bottom port location supports flush or panel-mount installation on manifolds and valve bodies
• 1/8 inch female NPTF connection provides a dry, pressure-tight thread seal
• Rated for inlet pressures from 10 to 125 psi
• Maximum operating temperature of 150 degrees F
• Compact and lightweight at 0.7 pounds for easy integration into tight assemblies

Compatibility

Designed as an OEM-style pressure indicator for pneumatic and fluid power systems using 1/8 inch female NPTF bottom-port connections with operating pressures up to 125 psi.

Installation Notes

Installation is typically performed by a licensed pipefitter, pneumatic systems technician, or qualified industrial maintenance technician. Depressurize and lock out the system before removing or installing any pressure indicator. NPTF threads are designed to seal on the threads themselves; apply appropriate thread sealant or PTFE tape per the system manufacturer's guidelines and applicable codes. Do not exceed the rated inlet pressure or temperature during service.