Smc Pneumatics VHS50-N10B-Z Lock-out Valve 1 Inch Npt

Product Description

The SMC PNEUMATICS VHS50-N10B-Z is a manually operated lock-out valve designed for pneumatic systems where controlled isolation and energy lockout are required. This 3-way, 2-position valve uses a handle actuator for direct manual operation, making it well-suited for lockout/tagout (LOTO) safety procedures in compressed air circuits. Key performance figures include a Cv rating of 8.6 and a minimum working pressure of 14.50 psi. Both the inlet and outlet connections are 1 inch female NPT, simplifying integration into standard pipe systems. Installed by industrial maintenance technicians and pneumatic system specialists, this valve provides a reliable mechanical means of isolating downstream equipment before service.

This valve is applied in industrial and commercial pneumatic systems where OSHA-compliant energy isolation is necessary. Typical installations include compressed air supply lines serving machinery, actuators, cylinders, and other pneumatic components that require safe de-energization prior to maintenance. The valve operates across a minimum working temperature of 23 degrees F, making it suitable for most indoor industrial environments and some outdoor installations in moderate climates.

Key Features

• 3-way, 2-position valve design for reliable pneumatic circuit isolation
• Handle actuation provides direct, positive manual control
• 1 inch female NPT inlet and outlet connections for standard pipe compatibility
• Cv rating of 8.6 supports adequate flow capacity in 1 inch compressed air lines
• Minimum working pressure of 14.50 psi suits typical low-to-medium pressure pneumatic systems
• Supports lockout/tagout (LOTO) safety procedures for equipment maintenance

Compatibility

Designed as an OEM-style replacement or drop-in addition for 1 inch NPT pneumatic supply lines requiring manual lockout isolation capability in industrial compressed air systems.

Installation Notes

Installation should be performed by a qualified industrial maintenance technician or pneumatic systems specialist. Always depressurize and de-energize the compressed air system fully before removing or installing any valve. Apply appropriate thread sealant to NPT threads per the system requirements and verify all connections are leak-free before returning the system to service. Follow applicable OSHA lockout/tagout standards and any local safety regulations during installation and maintenance procedures.