S118-4

Non-Surge Check Valve for 6 & larger

  • Controls pipeline surges caused by flow reversal
  • Lightweight Stainless Steel construction offers superior corrosion resistance for longer life
  • Simplified and efficient design is easy and economical to maintain
  • Sizes: 6″ and larger

Select options below to identify the UPC, Order Code, and Repair Kit for a specific S118-4

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