Contact Us
Distributors, Sales Reps & Manufacturers
Company History
Wil Spindler
Bart Mann
We have a set of technical bulletins about the various products we manufacture. There are several ways you can get your own copy. First, you can give us a call and we'll drop a set in the mail. Second, follow the links on the left, they'll take you to a place where you can download a PDF of the brochures. You will need a copy of Adobe Acrobat Reader to view the PDF files. Most computers have Acrobat installed on them. If you need Acrobat, please visit to download a free version of Acrobat. Finally, if you're really lucky we'll come to you and bring a set with us.

We make really good stuff for oil fields. Since we actually have our own production companies, we understand what works....and what doesn't. We've designed some gizmos (it's a technical term) that will save you time, money and frustration. Some of our more recent and better ideas are the Hot Shots, Yellowjackets and the brand new TefCore XT stuffing box packing.

If you have any questions about the products we manufacture, give us a call. We're a bunch of Montana good ol' boys who know a lot about pulling oil out of the ground.

About Us
Valve Cups
Seating Cups
Pressure Actuated
Yellowjackets &
Composition Rings
Pump Components
& Gaskets
TefCore & Veetex
Stuffing Box

DARCOVA & The Dragon • (800) 327-2682 • (800) 372-4661 • Phone (406) 254-9399 • FAX (406) 254-9446
514 Foote Street • Billings, MT 59101
© 2017 Darcova Inc.