103MAP

Class 250 Cast Iron Standard Wafer Silent Check Valves

  • Spring closes the disc before flow reversal, preventing surge and water hammer
  • Mating surfaces of the disc and seat are hand lapped for best possible sealing
  • Disc is fully guided at top and bottom to insure alignment and sealing at any installation angle
  • Disc begins to open at .5 psi
  • Disc opens 1/3” per inch of line size, greater than similar competitive products, for enhanced flow
  • Bodies are designed to accommodate 110% flow of equivalent pipe size

Select options below to identify the UPC, Order Code, and Repair Kit for a specific 103MAP

Approval/Certification Information

For product-specific approval information, please refer to the product’s specification sheet (see literature section above) or ask a Watts representative. For general information regarding any approval certification partners identified in the specification sheet, please visit our certification partners’ websites:


ASSE CSA FM Approvals NSF
UL ULC USC WQA