4" API Bottom Loading Load/Unload Head Valve w/Sight Glass

The Dixon NLDIX5204P API Bottom Loading Head is a heavy-duty aluminum load/unload valve designed for petroleum tanker bottom loading and unloading operations. Manufactured to API RP-1004 standards, this valve provides a secure connection to drop adapters and rack couplers while delivering dependable fuel transfer performance.

An integrated sight glass allows operators to visually confirm product flow, while the rugged aluminum construction, stainless steel hardware, and rebuildable design help ensure long service life in demanding transport and terminal environments.

Key Features

• 4" API bottom loading load/unload head valve
• Constructed from durable aluminum
• Integrated nylon sight glass for visual flow verification
• Anodized hard coat aluminum nose ring
• Baylast™ seal material for reliable sealing performance
• Stainless steel hardware for corrosion resistance
• Fixed aluminum handle design
• Short 62° operating stroke for efficient operation
• Rotatable nose ring extends service life
• Rebuildable without removal from tanker

Construction Details

The valve body is manufactured from aluminum to provide a balance of strength, durability, and reduced weight for tanker service applications.

An anodized hard coat aluminum nose ring resists wear during repeated coupling operations and can be rotated to maximize service life.

The integrated sight glass and ergonomic handle design allow operators to monitor flow and operate the valve efficiently during loading and unloading procedures.

Important Notes

Manufactured in accordance with API RP-1004 requirements for petroleum transport applications.

Compatible with gasoline, diesel fuel, E20 ethanol blends, and B100 biodiesel.

Designed for terminal loading and fuel unloading operations on petroleum tankers and transport equipment.

Product Documents