Overview
The ASCO 8317G35 is a pilot-operated quick-exhaust solenoid valve designed for rapid depressurization in pneumatic control systems. This 1/4″ NPT brass valve combines reliable flow control with a dedicated exhaust orifice that vents downstream pressure instantly for precise actuator timing. Operating at 120/60 AC, it delivers consistent performance across HVAC, automation, and general pneumatic applications.
Key Features
- Pilot-operated quick-exhaust design enables rapid depressurization and instant vent timing
- Resilient seated poppets ensure tight shutoff under all operating conditions
- Universal mounting capability—installs in any orientation without performance degradation
- Brass construction for corrosion resistance and long service life
- Full-area exhaust port maximizes flow capacity for fast actuation response
- Normally-closed (NC) configuration for fail-safe operation
Technical Specifications
| Part Number | 8317G35 |
| Valve Type | 3-Way, 2-Position, Normally-Closed (NC) |
| Function | Pilot-Operated Quick Exhaust |
| Port Size | 1/4″ NPT |
| Body Material | Brass |
| Operating Pressure—Air/Water | 5–150 PSI |
| Operating Pressure—Light Oil | 5–95 PSI |
| Minimum Pressure Differential | 5 PSI |
| Cv (Flow Coefficient) | 0.20 |
| Solenoid Coil Voltage | 120/60 AC (also available 110/50 AC) |
| Solenoid Power | 3W |
| Media Compatibility | Air, Inert Gases, Light Oil, Water |
| Installation | Mounts in any position |
| Condition | New in Box |
Typical Applications
- HVAC Systems: Hydronic and pneumatic heating/cooling control circuits requiring rapid actuator response
- Dust Collection: Manages cleaning cycles in baghouse filtration systems with fast pulse timing
- Pneumatic Automation: Precision timing circuits, cylinder sequencing, and blow-off controls in manufacturing
- Process Control: Light oil and water flow regulation in industrial pilot-operated circuits
- General Pneumatics: Any application requiring quick venting of pilot or secondary system pressure
Compatibility & Replacements
Compatible With
- Standard 1/4″ NPT pneumatic piping and fittings
- Manual and electrical solenoid coil control systems
- Pilot-operated actuators and cylinders
- Compressed air systems, vacuum systems, and inert gas circuits
- Industrial PLC, relay, and proportional valve control networks
Replaces / Drop-In Replacement For
- ASCO 8317G035 (variant designation)
- Other 1/4″ NPT 3-way quick-exhaust valves in Series 8317 family
Works With
- Direct 120/60 AC line voltage (no transformer required for standard coil)
- Piloted control valve circuits (secondary or pilot exhaust venting)
- Pneumatic timer and sequencing modules
- EtherNet/IP and PROFINET networked I/O via external control relays or gateways
- Studio 5000 and similar PLC ladder logic for solenoid activation via relay outputs
