The Asco 8047A002 Solenoid Valve (8047A2) is a manual reset, electrically tripped valve designed for reliable control of air systems under low-pressure conditions. The fail-safe latch keeps the valve closed after tripping until manually reset, making it ideal for air lockouts and machinery safety systems.
Technical Specifications
- Valve Type: Manual Reset, Electrically Tripped, Latched Closed
- Pipe Size: 3/8″ NPT
- Flow Factor (Cv): 0.60
- Operating Pressure Differential:
- Minimum Operating Pressure: 0 psi
- AC Maximum: 9 psi (Air)
- DC Maximum: 9 psi (Air)
- Maximum Fluid Temperature:
- AC: 160°F (71°C)
- DC: 160°F (71°C)
- Body Material: Brass
- Seal Material: PTFE and FKM
- Voltage Options:
- AC (60Hz): 24, 120, 240, 480V
- DC: 6, 12, 24, 120, 240V
- Watt Rating:
- AC: 20 watts
- DC: 36.2 watts
- Coil Insulation Class: F (AC), H (DC)
- Solenoid Enclosure:
- Standard: RedHat metal solenoid enclosure. Type 1 General Purpose Junction Box
- Optional: Explosionproof and Watertight, Types 3, 7 (C and D), and 9
Key Features and Functionality
- Reset-Required Fail-Safe Operation: Prevents unintentional reactivation of air flow.
- Explosionproof Capable: Can be fitted with a sealed enclosure for classified areas.
- Compact Footprint: Supports tight installations with reliable control.
- Low-Pressure Air Systems: Ideal for safe shutdowns at reduced pressures.
- Manual Reset: Must be manually reset after tripping for secure system handling.
Compatible Components and Related Parts
- ASCO RedHat II Coil Series
- ASCO Mounting Brackets
- ASCO Seal Kit for 8047 Series
- ASCO Explosionproof Solenoid Enclosure
Industry Applications
- Air System Interlocks: Used to ensure intentional restart after trip.
- Equipment Shutdown Control: Supports air cutoff during E-stop conditions.
- Pneumatic Safety Functions: Maintains isolation until the operator resets.
- Machinery Reset Circuits: Helps enforce personnel-based reset in automated lines.
- Low-Pressure Air Panels: Integrated into systems requiring precision shutoff behavior.
Compliance and Approvals
-
CSA Certified
Installation and Operational Notes
- Reset must be performed manually after the trip signal.
- The coil must be de-energized before reset can occur.
- Operate in clean, filtered air environments.
- Install in any orientation; verify coil position for DC models.
- Use explosionproof housing in classified zones when required.
Series Catalog
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