The EMCO Wheaton F0530020 4” Vapour Adapter is an industry-standard component for high-efficiency vapour recovery during tanker loading and unloading. Engineered with a TTMA flange, integrated air interlock valve, and a quick-release dust cap, this adapter ensures safe vapour transfer and emission control in fuel delivery operations. It is internationally recognised as a benchmark for quality in vapour handling systems.
Constructed from lightweight aluminium, the adapter minimises vehicle weight for increased payloads and operational efficiency. With high vapour flow capacity and low pressure drop, it supports multi-compartment loading without exceeding PV vent pressure limits. The air-operated interlock enhances safety by preventing unauthorised disconnection, while the orange-coded lockable dust cap protects the seal face during transit and storage.
Key Features
- 4” Surelok™ Compatible Adapter: Designed for compatibility with vapour recovery systems manufactured to Mil-C-27487 standard.
- TTMA Flange: Standardised interface allows secure, leak-free coupling to recovery hoses and terminal systems.
- High Flow, Low Pressure Drop: Optimised internal geometry ensures rapid vapour transfer with minimal restriction—essential for multi-compartment fuel loading.
- Air Interlock Valve: Prevents unintentional coupling/decoupling, sequenced with the emergency valve for operational safety.
- Quick-Release Dust Cap: Single-handed operation with heavy-duty chain and optional locking mechanism; orange for visibility.
- Viton Seals: Fitted as standard to resist aggressive fuel vapours and maintain long-term sealing integrity.
- Lightweight Aluminium Body: Weighs just 2.91 kg, maximising payload efficiency while offering corrosion resistance.
- Drain Plug: Screw plug included for safe and efficient removal of liquid contamination.
Technical & Operational Benefits
The F0530020 adapter is a key component in modern vapour recovery systems, helping operators meet environmental regulations by minimising hydrocarbon emissions. It enables efficient and safe vapour return from the tanker to the terminal via a connected Vapour Transfer Vent (VTV) mounted on the manhole. The combination of high flow and low restriction is especially critical in operations where simultaneous loading of multiple compartments is required.
Incorporating a durable air interlock valve and maintenance-friendly construction, this adapter is designed for long service life and safe performance in high-throughput fuel logistics environments.
Typical Applications
- Fuel tanker vapour recovery systems
- Terminal loading racks
- Petroleum and chemical distribution fleets
- Environmental emissions control systems
For compliant, low-emission fuel transfer with superior safety and durability, the EMCO Wheaton F0530020 4” Vapour Adapter delivers proven performance across global fuel handling networks.