Your browser is out of date.

You are currently using Internet Explorer 7/8/9, which is not supported by our site. For the best experience, please use one of the latest browsers.

back to Loading Systems

API Couplers

As a manufacturer of high-quality loading arm systems and accessories, Excel Loading Systems offers top-of-the-line API couplers for bottom-loading arm applications. Our API couplers have been used in many industries including petrochemical and petroleum.

Excel Loading’s CLICK and SNAP-ON API couplings are designed with ease of maintenance and safety in mind for load transports. They are manufactured with an aluminum anodized hard coat and handle and stainless-steel hardware to withstand the harshest conditions. In addition, they are manufactured and tested to the American Petroleum Institute standard API RP-1004. 

API RP-1004 guides manufacturers as to the uniformity that should be present, specifically regarding loading tank vehicles with a standard 4-inch adaptor. The purpose of this standard is to ensure the commonality of connection profiles, meaning that even if API Couplers are from different manufacturers they should be interchangeable in their application.

Types Of API Couplings 

API Couplings play an instrumental role in the safe and efficient transferring of both toxic and non-toxic materials. We offer two different API couplings to ensure that our clients can obtain the product the best fits their needs, minimizing risk.

View the types of API couplers we offer below:

API Coupling Manufacturer

API Couplings are widely used in the petroleum and petrochemical industry to effectively connect to and disengage cleaning from bottom loading tankers. The API couplers are mounted on the bottom loading arm with a flange connection which is then attached to the API valves on the petroleum tanker. This connection will provide trouble-free operation, high flow rates and ensure a clean, spill-free connection every time you load.

As an API Coupler manufacturer, Excel Loading Systems has developed a range of API couplings designed to improve safety, performance and reliability when unloading materials.

Our API Couplers provide many benefits including:

  • Precision Machined
  • Fast and reliable automatic latching
  • Multitude of seals available to suit various applications
  • Stainless-steel Collar for increased service life and durability
  • Hard-Anodized Aluminum
  • Made in USA
  • Fast in-field replacement of all seals
  • Stainless steel collar for longevity and durability
  • Four Interlocking stainless steel latches to secure the coupling and maximize safety
  • Rubber bumper
  • Reduced risk of leakage through the sealing design

Excel Loading is ISO certified and ASME coded. Contact us today to learn more about our API Couplers.

100% Domestic

100% Domestic

All Standard Swivels, Elbows, Pipes, and Spring components are made in the USA

Fastest Delivery

Fastest Delivery

4 week average delivery time with the ability to expedite for rush jobs



Material Test Reports and the ability to conform to AML

Quality Service

Quality Service

In-field services, shop rebuilds, and replacement parts available

See What Our Customers Have To Say

Great service, very easy to work with.



Oil & Gas Industry

Delivered a loading arm to us in under a week. Fastest turnaround I have ever seen.


Oil & Gas Industry

Extremely knowledgeable and helpful. Easy to get there engineers on the phone and answer questions. 


Food & Beverage Industry

Extremely happy with service.


Chemical Industry

logo symbol

America's Loading Arm

Have A Question? * indicates required field