The Asco 8316G002 Solenoid Valve (8316G2) is a 3-way, air-piloted, normally closed, spring-return valve designed for zero minimum pressure differential applications in compressed air and inert gas systems. These valves are well-suited for applications requiring low pressure or delicate flow control.
Technical Specifications
- Valve Type: Air Piloted, Spring Return, Normally Closed, 3-way
- Pipe Size: 3/8″ NPT
- Flow Factor (Cv): 1.5
- Operating Pressure Differential:
- Air: 0 to 150 psi (AC), 0 to 120 psi (DC)
- Maximum Fluid Temperature:
- AC: 180°F (82°C)
- DC: 120°F (49°C)
- Body Material: Brass
- Seal Material: NBR (Low Temperature)
- Voltage Options:
- AC (60Hz): 24, 120, 240, 480V
- AC (50Hz): 110, 220V
- DC: 6, 12, 24, 120, 240V
- Watt Rating:
- AC: 10.1 watts
- DC: 11.6 watts
- Coil Insulation Class: F
- Solenoid Enclosure:
- Standard: NEMA 4X, IP65 (Watertight, Corrosion-Resistant)
- Optional: Explosionproof & Watertight (Types 3-9), Raintight (Types 3, 7, 9)
Key Features and Functionality
- Zero-Minimum Pressure Operation: Works even at 0 psi.
- External/Internal Piloting: Easily switchable via gasket.
- Failsafe Shutdown Design: Exhausts actuator air on power loss.
- Compact Brass Housing: Ideal for general-purpose service.
- Dual Exhaust Ports: Improves response and venting speed.
Compatible Components and Related Parts
- ASCO RedHat II Coil Series
- ASCO Mounting Brackets
- ASCO Seal Kit for 8316 Series
- ASCO Explosionproof Solenoid Enclosure
Industry Applications
- Process Valve Shutdown: Failsafe air release on power loss.
- Control Panels: Compact actuation in logic circuits.
- Inert Gas Handling: Precision routing and isolation.
- Automation Safety Systems: Zero-pressure safety triggering.
- Pneumatic Positioners: Maintains state during failure.
Compliance and Approvals
- UL and CSA Certified (only with EF or EV prefix)
- CE Compliant
- SIL 3 Capable (Normally Closed only, EXIDA certified)
Installation and Operational Notes
- The external mode allows 0 psi operation with auxiliary pressure.
- The internal mode requires a 15 psi minimum pressure differential.
- The valve must vent to the atmosphere with full-area exhaust lines.
- Auxiliary pilot port required for external piloting.
- Mountable in any orientation.
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