Dual-action™ Check Modules
The core technology behind Deringer’s superior performance; the patented Dual-action™ check combines all the best features of industry standard poppet checks and swing checks into a single high-performance check module.
• Poppet action during low-flow to resist fouling and provide reliable sealing
• Swing action during high-flow for minimal pressure loss
• Modular for easy removal of complete check from body
• Easily disconnect spring tension for safe check servicing
• Replaceable silicone rubber elastomer disk