Skip to Main Content

709-NRS 4

Discontinued - Replaced By: LF709-NRS 4

Part of the 709 Series

Ordering Code: 0384636

UPC: 098268020861

Lead Free Model Available

4 In Cast Iron Double Check Valve Assembly With Nrs Shutoff Valves

This 4 inch double check valve assembly is designed to prevent the reverse flow of contaminated water of non-potable quality from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements. It is ideal for protection at cross-connections identified as non-health hazard applications and from other contaminants found at the service line entrance. This assembly consists of an epoxy coated cast iron body construction, non-rising stem resilient seated gate valves, test cocks, and a modular check design for easy maintenance with center stem guide. The captured spring is accessible through a bolted cover plate.

Product Features

  • Replaceable bronze seats
  • Fused epoxy coated cast iron body
  • No special tools required for servicing
  • Maximum flow at low pressure drop
Backflow Preventer Type Double Check Valve Assembly
Body Finish Epoxy Coated
Body Material Cast Iron
Brand Name Watts
Bypass No
Cap And Tether No
Elbow Fitting No
Hazard Protection Level Non Health Hazard
Hot And Harsh Water No
Hydrant Connection No
Inlet Connection Size 4 IN
Inlet Connection Size-Metric 100 MM
Inlet Connection Type Mechanical Joint
Inlet Shutoff Valve Type Non Rising Stem Gate Valve
Lead Free NO
Maximum Temperature-Fahrenheit 110
Maximum Working Pressure-BAR 12.10
Maximum Working Pressure-PSI 175
Meter Type No Meter
Minimum Temperature - Celsius 0.50
Minimum Temperature-Fahrenheit 33
Model Number 709-NRS 4
Outlet Connection Size 4 IN
Outlet Connection Type Mechanical Joint
Outlet Shutoff Valve Type Non Rising Stem Gate Valve
Part Number 0384636
Polymer Coating No
Protection Type Backpressure and Backsiphonage
Seat Material Bronze
Series 709
Strainer No
Type Kit

Product Accessories