Aquamatic Valve 428 Series – 4″

Aquamatic 428 Series – 4 Inch

• Large seat opening and high lift-disc for higher flow rates at a lower pressure loss
• Separate flow and control chambers permit positive closing without springs; and only nominal cost for spring assist opening for low-pressure and self-draining applications
• Cost-effective solution both in initial cost, as well as lifetime maintenance expenses
• Separate diaphragm chambers protects the diaphragm from the flow stream, while allowing the valve to be serviced in-line
• Constructed of cast iron, brass, stainless steel and Nitrile elastomer components, giving an unparalleled service life
• 3/4-inch through 3-inch threaded (N.P.T. or B.S.P.); 3-inch through 6-inch flanged drilled in accordance with ASA16.1 class 125, or BSP4504
• Compatible with wide range of line fluids including air or water applications
• Reinforced diaphragms are pre-formed and stress relieved to maximize responsiveness and product life
• Can be actuated with either air or water as control fluid