1-1/4" Brass Check Valve for Submersible Well Pump | 1-1/4" MNPT Inlet x FNPT Outlet, Backflow Preventer for

Key features

• Direct-Fit, Forged Tough 1 1/4 Check Valve: Features 1.25" NPT male inlet and 1.25" FNPT female outlet connections, screws directly into the well pump discharge—no extra adapter needed. Compact body (3" long, 2.2" diameter) fits tightly in well casings and cramped equipment spaces effortlessly. Includes Teflon tape for a perfect thread seal right out of the box, and acts as a reliable irrigation backflow preventer!
• Instant Spring-Loaded Action: Stops Backflow & Quiets Water Hammer: Low cracking pressure allows the one way check valve to open smoothly under forward flow from your pump, minimizing energy loss. The moment the flow reverses, the 304 stainless steel spring snaps the rubber washer shut—tight, fast, and chatter-free. Dramatically reduces water hammer banging and pipe vibration, protecting your pump, pressure tank, and entire plumbing system.
• Precision-Forged Brass Body with Premium Internal Components: Dense forged brass body resists corrosion, mineral scaling, and mechanical stress far better than cast alternatives. Inside, a high-resilience 304 stainless steel spring and an abrasion-resistant NBR (Buna-N) rubber seat deliver consistent sealing, excellent oil and water compatibility, and long fatigue life. Designed for heavy-duty cyclic use without leaks.
• Wide Application, Flexible Installation: This well pump check valve can be installed horizontally, vertically, or at any angle—the spring-assisted seal performs reliably in any orientation. Ideal for deep well pumps, irrigation systems, hand pumps, sump pumps, water transfer, hydraulics, and chemical fluid handling (water, oils, mild chemicals). Avoid strong oxidizers, high-temperature steam.
• Hassle-Free Setup, VERIWIS Promise: The sump pump check valve has a clearly marked flow arrow, detailed printed instructions, and teflon tape to ensure a confident first-time installation. If you encounter any issues, please contact our 24/7 Service Team first by sending us a message—VERIWIS will ensure your satisfaction. VERIWIS: Very Wise Solutions, Always. Upgrade your water pump system today!

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