Dixon
4" Aluminum API Drop Adapter Female
- SKU:
- NLDIX4540F
- Availability:
- Limited quantity available.
- Weight:
- 6.12 LBS
Description
4" Aluminum API Drop Adapter Female
4" Aluminum API Drop Adapter Female provides a connection from compatible API adapters to 4" drop hose assemblies used during petroleum cargo tank offloading.
The Dixon 4540 is constructed from aluminum and uses a Baylast™ O-ring seal. It is compatible with most API adapters and is rated for a maximum operating pressure of 75 PSI.
Product Highlights
Aluminum API drop adapter designed for offloading petroleum cargo tanks through compatible API adapters.
The 4" 4540 uses a Baylast™ O-ring seal and connects the API adapter to a 4" drop hose.
Technical Specifications
API Drop Adapter Configuration
The 4540 connects to a compatible API adapter used on petroleum cargo tank offloading equipment.
The adapter transitions the API connection to a 4" drop configuration for compatible petroleum transfer hose assemblies.
API Drop Adapter Design
The Dixon 4540 is designed for offloading petroleum cargo tanks through an API adapter to a 4" drop hose. Its configuration provides the transition needed between compatible API equipment and the drop assembly.
Dixon identifies the API drop adapter as compatible with most API adapters. Confirm the mating equipment and transfer system configuration before installation.
The 4540 uses aluminum construction for its API drop adapter body. The material provides a purpose-built configuration for petroleum cargo tank transfer equipment.
Inspect the adapter body and connection surfaces before each installation. Components showing excessive wear, deformation, or damage should be serviced or replaced before use.
The standard Dixon 4540 configuration uses a Baylast™ O-ring seal at the API connection. Dixon also offers other 4" drop adapter configurations with alternative seal materials.
Verify the required seal material against the transferred product and operating conditions. Replacement seals should match the specific adapter configuration being serviced.
The 4540 is configured as an API-to-4" drop adapter for connection to compatible drop hose equipment. Dixon specifies a maximum operating pressure of 75 PSI for its API drop adapters.
Confirm adapter size, seal style, mating API equipment, and hose configuration before ordering. Proper component selection helps maintain the intended transfer connection.
Installation & Selection Considerations
Confirm the 4" adapter size.
Verify the Baylast™ seal.
Check API compatibility.
Match the 4" drop assembly.
Verify transfer requirements.

Our product specialists can help review API compatibility, adapter size, seal material, drop hose requirements, and petroleum transfer applications before you order.
Frequently Asked Questions
What is the Dixon 4540?
The 4540 is a 4" aluminum API drop adapter designed for petroleum cargo tank offloading applications.
What material is the 4540 made from?
Dixon specifies aluminum construction for the 4540 API drop adapter.
What type of seal does the 4540 use?
The standard Dixon 4540 uses a Baylast™ O-ring seal.
What is the maximum operating pressure?
Dixon specifies a maximum operating pressure of 75 PSI for its API drop adapters.
What size drop hose is the 4540 designed for?
The 4540 is configured as an API-to-4" drop adapter for compatible 4" drop hose equipment.
What is the 4540 used for?
It is designed for offloading petroleum cargo tanks through a compatible API adapter to a drop hose.
Important Ordering & Installation Notes
- Verify Dixon part number 4540.
- Confirm the 4" adapter size.
- Verify the Baylast™ O-ring seal.
- Confirm API adapter compatibility.
- Match the petroleum transfer application.
- Inspect the adapter before installation.
- Check the seal before each connection.
- Confirm the mating API equipment.
- Do not exceed the rated operating pressure.
- Verify the transfer assembly before service.