Parker LV3N6B Safety Lockout Valve 3-way 6.6 Cv Npt

Product Description

The PARKER LV3N6B is a manually operated safety lockout valve designed to provide positive flow shutoff in fluid and pneumatic control systems. Actuated by a handle, this 3-way valve delivers a Cv rating of 6.6, supporting solid flow capacity in line-size applications. It uses NPT threaded connections for straightforward installation into standard pipe assemblies. The LV3N6B is rated for a minimum working temperature of 40 degrees F, making it suitable for indoor and protected outdoor installations. Licensed plumbers, pipefitters, and industrial maintenance technicians typically specify this valve where lockout-tagout (LOTO) compliance and manual isolation are required by safety procedure or code.

This valve fits applications where a reliable manual shutoff with lockout capability is required at a process isolation point. The 3-way configuration allows the operator to direct or block flow between ports depending on handle position, with two defined positions for clear open and closed states. It is commonly installed in compressed air lines, fluid distribution manifolds, and pneumatic control circuits in commercial and light industrial environments where OSHA lockout-tagout procedures govern service work.

Key Features

• 3-way valve design with two operating positions for precise flow control or isolation
• 6.6 Cv rating provides adequate flow capacity for standard line-size installations
• Handle actuator enables fast, tool-free manual operation and lockout
• NPT thread type for direct connection to standard pipe fittings
• Minimum working temperature of 40 degrees F suits protected indoor service environments
• Safety lockout design supports LOTO compliance during system maintenance

Compatibility

Designed as an OEM-style replacement or direct installation safety lockout valve for pneumatic and fluid systems requiring NPT-threaded 3-way manual isolation points.

Installation Notes

Installation should be performed by a licensed pipefitter, plumber, or qualified maintenance technician. Depressurize and de-energize the system fully before removing or installing any valve. Apply thread sealant appropriate for the media type to all NPT connections and verify joint integrity before returning the system to service. Follow all applicable OSHA lockout-tagout regulations and local plumbing or mechanical codes when placing this valve into a lockout-capable isolation point.