WEFLO F3322B / F3322 SHOTGUN RISER CHECK VALVE UL/FM

High-Performance Grooved-End Shotgun Riser Check Valves NASCO Supply carries the full line of Weflo riser mount check valves, engineered for reliable performance in wet pipe sprinkler systems, pre-action systems, and fire riser assemblies. These UL Listed and FM Approved swing check valves feature a spring-loaded disc for fast, positive closure, minimizing water hammer and ensuring dependable backflow prevention. Without Trim (Bare Valve – F3322B) The Weflo bare riser check valve is a compact, heavy-duty grooved-end valve designed for installations where you already have custom trim or prefer to build your own assembly. Key Features: Ductile iron body with fusion-bonded epoxy coating for superior corrosion resistance Bronze seat ring and rubber-faced disc for bubble-tight shutoff Stainless steel spring and hinge pins Grooved ends (AWWA C606) for fast, flexible installation Low pressure loss and excellent flow characteristics 350 psi working pressure rating Available in sizes 1¼" through 12" Ideal for: Contractors who want maximum flexibility or already stock separate trim components. With Trim (Full Shotgun Riser Assembly – F3322) The complete Weflo shotgun riser assembly comes fully trimmed and ready for installation. This all-in-one unit includes the check valve plus the factory-matched trim kit. Trim Kit Includes: Angle drain valve Two pressure gauges (water and air) Interconnecting nipples, plugs, and fittings All necessary components for a code-compliant riser Key Benefits: Saves significant field labor and installation time Ensures proper component compatibility and reliable performance 300 psi working pressure rating (with trim) Clean, professional appearance with everything pre-assembled Ideal for: Quick installations, new construction, and maintenance projects where speed and code compliance are priorities. Why Choose Weflo Riser Valves from NASCO Supply? Competitive pricing with volume discounts available Fast shipping from our Chicago-area warehouse Expert technical support for sizing and installation questions Full line of sizes from 1¼" to 12" Whether you need the bare valve only or the complete trimmed shotgun riser, Weflo delivers dependable, code-approved performance at an excellent value.