Wastewater Backflow Preventers Datasheets

Miniature Low Cracking Pressure Check Valve -- CKV
from Beswick Engineering Co., Inc.

The check valve permits free flow in one direction and no (checked) flow in the opposite direction. This valve is specified in many applications because of its very low cracking pressure (typically less than 0.5 psig), its excellent repeatability, and leak-tight operation. The unique design of the... [See More]

  • Media: Air; Breathable; CompressedAir; Chemical; Hydraulic; Water; HotWater; ColdWater  ; GroundWater; PotableWater; Wastewater; Gas; Gasoline or Diesel Fuel; HighPurity; LP Gas; NaturalGas
  • Maximum Pressure: 0.00 to 250.00
  • Valve Size: 0.05
  • Primary Material: BrassBronze; StainlessSteel (optional feature); Buna, EPDM, Viton, or Silicone seals
Flood-Guard™ - Vertical One way Flow Check Valve
from General Pipe Cleaners

Flood-Guard ™ operates like a check valve to seal off water back-up caused by overloaded sewers. Water flows normally through the drain until the sewer begins to back up. Then the Flood-Guard ™ float rises to seal off the drain opening until the water recedes. A screwdriver and a couple... [See More]

  • Media: Water; ColdWater  ; GroundWater; Wastewater
  • Primary Material: StainlessSteel; Rubber
  • Valve Size: 2.00 to 4.00
Double Check Detector Assembly -- Series 709DCDA
from Watts

Series 709DCDA Double Check Detector Assemblies prevent backflow of non-health hazard fire protection system substances from being pumped or siphoned into the potable water supply. It incorporates a meter to detect ground leaks and unauthorized illegal taps, greatly reducing annual water expenses. [See More]

  • Media: Water; PotableWater; Wastewater
  • Maximum Pressure: 175.00
  • Valve Size: 3.00 to 10.00
  • Media Temperature: 140