S116

Pressure Relief, Sustaining or Backpressure Control Valve

  • Designed to permit flow when upstream pressure is above the adjustable setpoint of the control pilot
  • When installed "off the main line" on the branch of a tee, the valve serves as a Pressure Relief Control Valve
  • When installed "in line" connecting two distribution zones, the valve acts as a Pressure Sustaining Control Valve
  • When installed "in line" on the discharge of a pump, the valve acts as Backpressure Control Valve

Select options below to identify the UPC, Order Code, and Repair Kit for a specific S116

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