LFM127-11 Large

One-Way Flow Altitude Valve with Delayed Opening, For 20 and 24 IN

  • Allows flow into a reservoir or elevated storage tank
  • Allows a calculated "draw-down" of water level to increase tank circulation
  • Water level is controlled by a field installed sensing line
  • Body and cover are constructed of strong and durable ductile iron (ASTM A536)

Select options below to identify the UPC, Order Code, and Repair Kit for a specific LFM127-11 Large

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