Precision Flow Restrictor Plates

6" Orifice Plate - Flat Design

6" Precision Restrictor - Flat Design - Part #PI-RF06

  • Made of high-density polyethylene.
  • Used to restrict the flow of water from the inlet to the main line to reduce soil erosion and control water flow. 
  • Intended for an installer to drill a variety of sized holes to meet government specifications.
6" Knockout Restrictor Plate

6" Precision Restrictor - Knockout Design - Part #PI-RK06

  • Made of high-density polyethylene.
  • Used to restrict the flow of water from the inlet to the main line to reduce soil erosion and control water flow.
  • Designed with the option of 4″, 3 1/2″, 3″, and 2 1/2: knockout holes to meet government specifications.
6" Orifice Plate - Flat Design

8" Precision Restrictor - Flat Design - Part #PI-RF08

  • Made of high-density polyethylene.
  • Used to restrict the flow of water from the inlet to the main line to reduce soil erosion and control water flow.
  • Intended for an installer to drill a variety of sized holes to meet government specifications.
6" Orifice Plate - Flat Design

10" Precision Restrictor - Flat Design - Part #PI-RF010

  • Made of high-density polyethylene.
  • Used to restrict the flow of water from the inlet to the main line to reduce soil erosion and control water flow.
  • Intended for an installer to drill a variety of sized holes to meet government specifications.