Dixon 5500 Series 4 in. Aluminum API Rack Coupler w/ FKM-B (FKM) Seal & Aluminum Handle

Dixon 5500 4 in. Aluminum API Rack Coupler Description

The Dixon 5500 API Rack Coupler is built for dependable performance in fuel loading and unloading operations for railcars and tank trucks.

Its locking five-cam design ensures quick alignment and a secure connection to standard API adapters, making it ideal for high-demand fueling environments.

Featuring a lightweight aluminum handle and an FKM-B (Viton) seal, it delivers reliable sealing across a broad temperature range. For a lower operating temperature range, see the 5000G API Rack coupler.

FKM-B Operating Temperature: -10°F to 400°F (-23°C to 204°C)

Features

• Locking five-cam design provides easy alignment and tight connection
• Modular design allows various face seal combinations to be compatible with different alternative fuels, performance levels, and applications
• Replaceable nose seal can be changed without removing coupler from loading arm
• Fully interlocked collar prevents fitting from opening when disconnected and can not be disconnected while opened
• 4 in. TTMA inlet mounting flange connection
• Ball-end handle for easy and comfortable operation
• No special tools needed for maintenance
• Exclusive 5 year mechanical manufacturer warranty - Normal wear and tear items (including seals) not covered

Specifications

• Inlet: 4 in. TTMA
• Body: 356 T6 Aluminum Anodized Hard-Coat
• Cam: Stainless Steel
• Poppet: 356T6 Aluminum Anodized Hard-Coat
• Seal: FKM-B (viton)
• FKM-B Operating Temperature: -10°F to 400°F (-23°C to 204°C)
• Link, Shaft, Pin, Crank: Hardened 17-4PH Stainless Steel
• Handle: Aluminum, Stainless Steel
• Max Flow Rate: 1,000 GPM (600 GPM at 3 PSI pressure drop)
• Approvals: Fully compliant with API RP1004:2003 specifications

Downloads

Maintenance & Operating Instructions (PDF Download)