Datwyler’s Cap King: Robust Design for Effective Well Pressure Management

Unmatched Strength and Versatility

Our Double E brand Cap King, constructed from heat-treated alloy steel, stands as a testament to our commitment to durability and functionality. Our most popular Cap King model, weighing 36 pounds, is engineered to offer a robust solution for suspending tubing and retaining well pressure in a variety of settings.

Tailored for Your Operational Needs

Available in thread sizes of 2-3/8 inch and 2-7/8 inch EU, the Cap King is designed with an integrated hanger, providing an economical yet highly effective option for your tubing suspension needs. We keep all parts in stock for most common 1/4″ and 3/8″ tubing packoffs for new builds and replacement parts.



Each Cap King is meticulously precision machined and includes essential components such as a hanger, plunger, cap, spring, upper and lower bushing, packing, and base, ensuring comprehensive functionality and reliability.

Customization to Match Your Unique Requirements

If our existing Cap King models don’t quite match your specific needs, Double E is prepared to go the extra mile. We can develop a new Cap King model or modify an existing one to align perfectly with your application requirements.

Explore Double E’s Cap King series for a reliable and efficient solution in well pressure management and tubing suspension.