3/8X1/2 CHECK VALVE Features:
• The 426 Check Valves incorporate a Stainless Ball that seals on a quad ring
• Gray PVC with 1 psi stainless spring and ball is the standard configuration
• Most PVC and White Filled Polypropylene configurations are available as NSF Standard 42 Certified
• Nylon, PVDF (Kynar®) and Glass Filled Polypropylene are available for chemical resistance applications
• MakroBlend is an NSF Standard 51 Approved Material
• Hastelloy is a superior chemically resistant spring material
• Teflon® balls are standard with Hastelloy springs for chemical resistance applications
