Cold Water 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; Compressed Air; Chemical; Hydraulic; Water; Hot Water; Cold Water  ; Ground Water; Potable Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas
  • Maximum Pressure: 0.00 to 250.00
  • Valve Size: 0.05
  • Primary Material: Brass / Bronze; Stainless Steel (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; Cold Water  ; Ground Water; Wastewater
  • Primary Material: Stainless Steel; Rubber
  • Valve Size: 2.00 to 4.00
Boiler Drain Shutoff -- HB-1
from Watts

Brass Hose Bibb Boiler Drains. Series HB-1 Brass Hose Bibb Boiler Drains are for use in commercial and residential hydronic heating systems. It consists of a brass body construction with 1/2 in. I.P. male x 3/4 in. (15 x 20mm) hose thread connection, or 1/2 in. Nom. copper x 3/4 in. (15 x 20mm) hose... [See More]

  • Media: Water; Hot Water; Cold Water  
  • Primary Material: Brass / Bronze
  • Valve Size: 0.50 to 0.75
Bronze bodied Double Check Detector Assemblies -- Series 3000BM1/3000BM1-FP
from Ames Fire & Waterworks

The Series 3000BM1 Double Check Detector Assembly (DCDA) is specifically designed to protect against possible backpressure and backsiphonage conditions for non-health hazard (i.e., pollutant) application in accordance with Local Governing Water Utility Code. This device assembly is primarily used on... [See More]

  • Media: Water; Hot Water; Cold Water  ; Potable Water
  • Maximum Pressure: 175.00
  • Valve Size: 2.00
  • Media Temperature: 33 to 140