HBFV-X4 Series Emergency Foot Valves (Civacon Style) – High Flow Safety Solution for Petroleum Transport
The HBFV-X4 Series Emergency Foot Valves are engineered for robust and safe handling of petroleum products during tanker loading and unloading. Designed with a precision shear groove in compliance with DOT 49 CFR 178.345-8, these valves place the seating area safely inside the tank shell, meeting strict U.S. Department of Transportation regulations and minimizing spill risk in emergencies.
Optimized for high throughput, the valves feature a full-opening throat area that supports rapid fuel transfer while fitting a standard 4-inch TTMA sump. The HBFV-X4 Series is available in 90-degree elbow configurations with mechanical or pneumatic actuation, providing versatility for different operational setups.
Globally, this type of valve is known by various names depending on the region and industry: Emergency Foot Valve, Safety Tank Foot Valve, High-Flow Civacon Valve, Petroleum Transport Emergency Valve, Truck Loading Bottom Valve, Spill-Resistant Foot Valve, Air-Assisted Emergency Tank Valve, and Manual Emergency Tank Foot Valve. Despite naming differences, all emphasize safety, high flow capacity, and reliable emergency response.
Key Features and Advantages
High Flow Capacity: Full-throat design maximizes liquid throughput for efficient fuel handling.
Regulatory Compliance: Shear groove and seat placement meet TTMA RP84-92, RP86-92, and DOT 49 CFR 178.345-8 requirements, as well as DOT 406 standards to reduce spills during accidents.
Flexible Operation: Available in pneumatic or manual actuation, with optional external air cylinders and mechanical push rod adaptors for top vent operation.
Durable Construction: Die-cast aluminum body with premium components ensures long service life while maintaining light weight for higher payloads.
Sealing Performance: Viton or Buna-N seals are available to provide chemical resistance and ease of maintenance. Double O-ring sealing on camshafts improves reliability.
Smooth and Safe Operation: Self-centering plungers with durable compression springs, brass cams with bearing boots, and high-lift poppets guarantee smooth actuation and maximum flow.
Global Standards: Designed to meet EN 13308:2002 standards for tank service equipment.
Technical Specifications
Nominal Size: 4 inch
Working Pressure: 0.6 MPa
Temperature Range: -20°C to +70°C
Tank Side Flange: Round
Pipe Side Flange: Round
Suitable Media: Diesel, gasoline, and other light fuels
Ordering Options
HBFV-Q4: Pneumatic type for automated operations
HBFV-S4: Manual type for traditional operation
Applications
HBFV-X4 Emergency Foot Valves are ideal for tanker trucks, fuel depots, industrial fuel distribution, petroleum transfer stations, and any application requiring rapid, high-volume fuel unloading with enhanced safety and spill prevention.
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