Overview
The ASCO 8043B38 (also referenced as 8043B038, Model 206143) is a Red Hat series solenoid valve engineered for direct control of fuel gas in industrial and commercial applications. This valve combines proven electromagnetic actuation with robust construction to deliver dependable on/off control for gas burners, pilot systems, and process automation requiring safe, reliable shutoff capability.
Key Features
- Direct-Acting Design: Simple, responsive operation without requiring pilot pressure—ideal for low-pressure gas systems.
- Safety-Grade Construction: Red Hat enclosure rated for hazardous locations with fail-safe operation and emergency shutoff capability.
- Certified Approvals: UL, CSA, and FM certified for safety shutoff and general-purpose gas control applications.
- Low Power Consumption: 69W solenoid draws minimal electrical load, reducing control panel requirements.
- 3/4″ NPT Connections: Standard pipe thread enables direct integration into existing gas piping infrastructure.
- Compact Footprint: Space-efficient design suitable for tight installation areas.
Technical Specifications
| Model Number | ASCO 8043B38 (8043B038) |
| Manufacturer | ASCO (Emerson) |
| Valve Type | Two-Way Direct-Acting Solenoid Valve |
| Maximum Pressure Rating | 20 PSI |
| Solenoid Power Rating | 69W |
| Pipe Connection Size | 3/4″ NPT |
| Media | Fuel Gas, Natural Gas, Propane |
| Body Material | Aluminum (with stainless steel core) |
| Enclosure Type | Red Hat (NEMA 3/7/9 equivalent) |
| Certifications | UL, CSA, FM |
| Condition | New – No Box |
Typical Applications
- Gas Burner Control: Pilot ignition and main burner fuel shutoff for industrial and commercial heating systems.
- Process Gas Control: Metering and emergency shutoff in manufacturing and process automation.
- Safety Shutoff: Fail-safe closure triggered by safety interlocks or emergency stop systems.
- HVAC Systems: Gas valve actuation in furnaces, boilers, and unit heaters.
- Hazardous Area Installation: Approved for use in classified locations where explosion-proof or raintight enclosures are required.
Compatibility & Replacements
Compatible With
- Industrial gas burner control systems (pilot and main valves)
- Pneumatic and electrical interlock safety circuits
- Standard 24 VAC, 120 VAC, and 240 VAC control circuits (verify coil voltage on your unit)
- Low-pressure fuel gas delivery systems (natural gas, propane, butane)
- Standard NPT threaded piping up to 3/4″ diameter
Replaces / Drop-In Replacement For
The ASCO 8043B38 is often interchangeable with other ASCO Red Hat two-way, direct-acting gas valves in the 8043 series. Verify compatible model numbers with your system documentation or contact an ASCO distributor. Common alternative part numbers in this series include 8043A and similar ASCO fuel gas shutoff models, though direct compatibility must be confirmed by pressure rating, coil voltage, and connection type.
Works With
- Control Platforms: Industrial PLC systems, burner management controls, and safety control modules using standard 24 VAC or higher-voltage solenoid coils.
- Communication: Hardwired relay logic and direct solenoid energization; no networked control required.
- Safety Systems: FM-approved safety circuits requiring redundant shutoff and proof-of-closure functionality.
- Manual Override: Manual lever or push-button override available as an optional configuration.
