The Asco 8047A001 Solenoid Valve (8047A1) is a compact, manual reset valve engineered for safe air shutoff in critical control systems. Designed to prevent accidental restart, this valve stays latched until intentionally reset. Its high-temperature capability and reliable operation are ideal for safety interlocks, pressurized air systems, and emergency air cutoff points.
Technical Specifications
- Valve Type: Manual Reset, Electrically Tripped, Latched Closed
- Pipe Size: 1/4″ NPT
- Flow Factor (Cv): 0.70
- Operating Pressure Differential:
- Minimum Operating Pressure: 0 psi
- AC Maximum: 125 psi (Air)
- DC Maximum: 125 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
- Manual Reset: Requires deliberate human action to restart after a trip event.
- Explosionproof Design: Optional housing supports safe use in hazardous zones.
- Compact Form Factor: Offers strong airflow in a space-saving 1/4″ footprint.
- Thermal Stability: Maintains sealing and function up to 160°F (71°C).
- Secure Latching: Valve remains shut until manually reset, ensuring process control.
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 Supply Shutdowns: Used in pressurized lines for manual reactivation.
- Safety Lockout: Enforce personnel reset in machine safety protocols.
- Pneumatic Panel Control: Installed in control boxes to manage fault recovery.
- Emergency Stop: Integrates with E-stop systems for air release cutoff.
- Fail-Safe Equipment: Ensures the power-off state is maintained after signal loss.
Compliance and Approvals
-
CSA Certified
Installation and Operational Notes
- Valve must be manually reset after the electrical trip.
- Reset is only possible when the coil is de-energized.
- Install in clean air systems for optimal lifespan.
- The mounting position is flexible; avoid using an inverted coil in DC setups.
- Use an explosionproof enclosure if installed in classified locations.
Series Catalog
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