Overview
The SMC VHS40-N06-Z is a single-action pneumatic pressure relief valve designed to prevent dangerous pressure buildup in pneumatic systems. Part of SMC’s VHS20/VHS30/VHS40/VHS50 series, this valve features manual operation and OSHA-compliant safety features including lockable exhaust positioning for energy isolation during maintenance.
Key Features
- Manual single-action operation — simple handle control with 2-step push-and-turn action to prevent accidental discharge
- OSHA-compliant design — includes locking holes to secure valve in exhaust position for personnel safety during equipment service
- Visual flow indication — supply and exhaust air status visible at a glance for operational verification
- Die-cast aluminum body — durable construction suitable for industrial pneumatic systems and air preparation circuits
- Preset pressure setting — factory set to 15-150 PSI range (Z configuration) for reliable pressure control
Technical Specifications
- Pressure Setting Range: 15–150 PSI (Z suffix)
- Port Size: 3/4″ NPT (Ports 1 & 2: 3/4″ NPT; Port 3: 1/2″ NPT)
- Valve Type: 3-port, single-action relief
- Body Material: Die-cast aluminum
- Handle/Bonnet Material: Flame-resistant PBT (A configuration)
- Operating Temperature: -5 to 60°C
- Valve Series: VHS40 (size 40)
- Port Configuration: 3 ports (supply, control, exhaust)
- Dimensions: 69 mm diameter × 110 mm height
- Standards: OSHA-compliant
Typical Applications
- Pneumatic system overpressure protection in manufacturing and assembly lines
- Energy isolation during maintenance and cleaning operations
- Residual pressure relief in compressed air distribution systems
- Accessory for SMC AC series air preparation equipment
- Industrial equipment safety circuits requiring manual pressure venting
Compatibility & Replacements
Compatible With
- SMC pneumatic systems and manifolds
- SMC AC series air preparation equipment
- Standard 3/4″ NPT pneumatic ports and tubing
- OSHA-compliant compressed air safety circuits
Replaces / Drop-In Replacement For
- SMC VHS40-N06A-Z (similar model with alternative handle material)
- SMC VHS40-N06B-Z (3/4″ NPT variant)
- Other SMC VHS40 series relief valves with equivalent port sizes
Works With
- Pneumatic solenoid valves and control systems
- Pressure regulators and filters in air preparation circuits
- Standard ISO 4401 NG10 and NG16 manifold plates
- Compressed air systems operating 15–150 PSI
