
SMC VHS40N04BZ (VHS40-N04B-Z) - Pressure Relief 3 Port Valve With Locking Holes, Aluminium Handle, NPT1/2 Port
SMC VHS40N04BZ Pressure Relief 3 Port Valve With Locking Holes — aluminium handle with NPT1/2 ports and psi shown as the unit on the label. OSHA standard conforming, single action, NPT 1/2 port, aluminium handle and bonnet, psi as unit displayed on label, locking holes for padlock.
MPN: VHS40-N04B-Z · SKU: VHS40N04BZ
VHS40-N04B-Z Applications
The SMC VHS40N04BZ is used as a large bore padlockable air isolation valve on equipment plumbed to NPT and documented in imperial units. It is suited to OSHA energy isolation on heavy machinery, residual pressure exhaust ahead of maintenance work, and air shut-off on large cylinder circuits. The aluminium handle and bonnet withstand rough handling better than resin, and the psi label unit matches North American gauges so operators read supply pressure without converting between metric and imperial scales.
VHS40-N04B-Z Specifications
| Brand | SMC | Manufacturer Part No. | VHS40-N04B-Z |
| Product Type | Pressure Relief 3 Port Valve With Locking Holes | Series | VHS20/30/40/50 |
| SMC Series Description | VHS20-30-40-50 Series Conforming To OSHA Standard Pressure Relief 3 Port Valve With Locking Holes Single Action | Body Size | 40 |
| Thread Type | N - NPT | Port Size | 04 - 1/2 |
| Handle/Bonnet Material | B - Aluminum | Option | None |
| Semi-standard Specifications | Z - psi As Unit Displayed On Label | Made To Order | Standard |
| Lifecycle | Manufacture discontinued since 3/2025; replacement series VHS-D |
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