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Company History
Wil Spindler
Bart Mann
Whether you choose to use our standard blue Nylon® Pressure Actuated Ring or our Teflon®-
based XT® Pressure Actuated Rings. you will be using the "Ring of Choice" of North American

What makes it so special? Boy, are we glad you asked!

Darcova's all-plastic PA ring is designed to use the well's hydrostatic head to more efficiently transmit pressure to its advantage. The ring expands on the upstroke (providing the seal necessary for greater pump efficiency), and contracts on the downstroke (allowing less resistance on the falling plunger).

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current technical bulletin.
Darcova's XT®
PA Ring
Darcova's Nylon
PA Ring
Valve Cups
Seating Cups
Yellowjackets &
Composition Rings
TefCore & Veetex
Stuffing Box Components
About Us
Pump Components
& Gaskets
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.