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VHS Series Residual Pressure Release Valve VHS Series Residual Pressure Release Valve VHS Series Residual Pressure Release Valve

VHS Series Residual Pressure Release Valve

  • Professional VHS series residual pressure release valve
  • OSHA compliant lockout/tagout (LOTO) design
  • Integrated padlock hole for enhanced maintenance safety
  • 3-port 2-position manual exhaust functionality
  • Rapid downstream pressure venting
  • Durable aluminum alloy body with high-grade finish
  • High-visibility handle for clear status identification
  • Port sizes available: 1/8", 1/4", 3/8", 1/2", 3/4"
  • Compatible with standard F.R.L. modular assemblies
  • Reliable leak-proof performance and long service life
  • Ideal for factory automation and safety-critical air systems.

VHS Series: The Essential OSHA-Compliant Safety Shut-off Valve


The VHS series is a high-performance Residual Pressure Release Valve designed to enhance safety in industrial pneumatic circuits. Serving as a primary shut-off point, the VHS valve allows for the immediate disconnection of the air supply while simultaneously exhausting all downstream residual pressure to the atmosphere. This "Zero Energy State" is critical for protecting personnel during maintenance, inspection, and repair.


Advanced Engineering & Safety Highlights

  • Lock-out/Tag-out (LOTO) Ready: Engineered to meet strict global safety standards (such as OSHA), the VHS series features a built-in locking hole. This allows the valve to be padlocked in the "OFF" position, preventing accidental re-pressurization while technicians are working on the equipment.

  • High-Visibility Actuation: The handle is typically color-coded (Red/Yellow or Blue/Silver) and provides a clear 90-degree visual confirmation of the valve state (Supply vs. Exhaust).

  • 3-Port 2-Position (3/2-Way) Logic: When the valve is closed, the upstream supply is blocked, and the downstream air is vented through the exhaust port, ensuring all actuators and cylinders remain stationary.

  • Smooth & Effortless Operation: The internal ceramic or precision-finished sliding structure ensures low-friction rotation and a long service life, even in demanding high-cycle environments.

  • Compact & Modular Design: The VHS series is designed to be easily integrated into F.R.L. (Filter-Regulator-Lubricator) units or installed inline to serve as a master air entry point.


Technical Specifications Overview

FeatureDetails
Acting TypeManual (90° Rotary Handle)
Action Style3-Port 2-Position (3/2 Way)
FluidClean Air (40-micron filtered)
Operating Pressure0.1 ~ 1.0 MPa (14 ~ 145 psi)
Proof Pressure1.5 MPa (215 psi)
Temperature Range-5°C to +60°C (No freezing)
Body MaterialAluminum Alloy
Exhaust PortIntegrated (Silent venting)

Primary Industrial Applications

The VHS safety exhaust valve is a mandatory component for:

  • Machine Maintenance: Safe isolation of air supply for sensor or cylinder replacement.

  • Emergency Air Shut-off: Providing an accessible manual "Kill Switch" for the main pneumatic line.

  • Tooling Changes: Safely depressurizing lines before changing pneumatic tools or jigs.

  • F.R.L. Units: Serving as the entry-point safety valve for modular air preparation sets.


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