S4-100 Main

Stage 4 – 1″ Float Valve


  • Smooth positive shutoff with redundant backup
  • No more flooded pump rooms and high water/sewer bills
  • Two float valves in one. If the primary valve fails, the backup takes over
  • Operating range: 5-110 PSI
  • 1″ FPT Inlet and Outlet
  • Uses diaphragm Part # 71-D (with 1 small hole) AND uses diaphragm Part # 71-D-P with 2 holes (1 small hole plus 1 – 3/32″ diameter hole in center)


  • 9″H x 14 1/2″W x 6 1/4″D

s4100 flow rates


S4-100 Gallery
Click below images to enlarge:

S4-100-1       S4-100-2       S4-100-3





All Cleveland Valve Company products carry a one year warranty. The warranty is against defects in materials and workmanship for the stated period of warranty. The defective product will either be repaired or replaced. All returned items must be sent freight prepaid.




 The Most Compact and Corrosion Resistant Valves on the Market!