HBC803 Series Modular Vapor Recovery Adaptors – Efficient Bottom-Side Vapor Management for Tank Trucks
The HBC803 Series Vapor Recovery Adaptors are engineered for the lower side installation of tanker trucks, linking directly to vapor vent valves via pipelines. Designed to optimize vapor recovery during sealed loading operations, these adaptors allow fast and secure connections to depot vapor recovery pipelines. Two connection types are available: female threaded (BSPP or NPT standard) and flange-mounted, both enabling efficient vapor return to the depot system without exceeding P/V vent ratings.
These adaptors are ideal for multi-compartment loading at high flow rates. Their compact, lightweight die-cast construction ensures excellent gas flow, minimal pressure drop, and long-lasting durability. The unique piston design maintains smooth vapor circulation, while the valve stem points toward the tank, reducing the risk of leakage if the tanker tips. Pneumatic control provides a labor-saving, convenient operation, and when paired with an air interlock, the vapor vent valve can be automatically managed for enhanced safety.
Variants & Material Options:
HBC803-T – Cast Aluminum L102, female 3” or 4” threaded connection, male 4” Camlock outlet.
HBC803-F – Cast Aluminum L102, flange 3” or 4” with 4 or 8 bolt holes, male 4” Camlock outlet.
HBC803-F with Vapor Cap & Air Interlock – Adds enhanced sealing and pneumatic interlock for automated operation.
HBC803-FS – Stainless Steel 304, flange 3” or 4” with 4 or 8 bolt holes, male 4” Camlock outlet for chemical-resistant applications.
Key Benefits:
High Flow & Low Pressure Drop – Optimized for rapid vapor circulation during bottom loading.
Durable Construction – Cast aluminum or stainless steel materials for long-term reliability.
Safety-Focused Design – Valve stem orientation and air interlock reduce vapor leaks and improve tanker safety.
Flexible Installation – Threaded or flange options to match global tanker configurations.
Visual & Maintenance Features – Lightweight design reduces payload impact, screw plug for easy liquid drainage, and optional vapor cap for secure sealing.
Global Names & Industry Recognition
This series is known by multiple names worldwide, reflecting regional terminology for vapor recovery and ventilation systems:
Germany: “Tankwagen-Dampf-Rückführadapter”
France: “Adaptateur de récupération de vapeur pour citerne”
Italy: “Adattatore di recupero vapor per serbatoio”
Spain: “Adaptador de recuperación de vapor para cisterna”
Norway / Sweden: “Tankluke dampkontrolladapter.”
UK / English-speaking markets: “Vapor Recovery Adaptor for Tanker Bottom Side.”
Asia & South America: Commonly referred to as “油气回收接头”, “安全油气回收接头”, or “压力平衡油气接头.”
Despite differing names, the primary purpose remains consistent: ensuring safe and efficient vapor recovery, preventing spills, and maintaining tank pressure balance during transport operations.
Applications
HBC803 Series Vapor Recovery Adaptors are widely applied in petroleum tank trucks, chemical tankers, and multi-compartment liquid transport vehicles. Their robust materials, high flow efficiency, and global recognition make them a preferred solution for safe and environmentally compliant vapor management systems in the international petroleum transport industry.
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