Merrill Manufacturing Co. produces the 500 Series zinc-plated, malleable iron, heavy-duty check valves. The no-spin poppet design is for created for demanding installations above the pump. A heavy-duty, thick sealing disc is backed by a stainless steel washer and uses a stainless steel bolt and locknut. Merrill Manufacturing Co.
Heavy-duty Check Valves
September 1, 2001