W-M118

Slow Closing Check Valve

  • High flow and low pressure loss
  • Stable performance, safe and reliable
  • Simple operation, adjusting the opening and closing speed separately
  • Long service life; prevents hammerings

Approval/Certification Information

For product-specific approval information, please refer to the product’s specification sheet 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