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  • Apollo 4N3A33A Bronze Dual Check Valve, 1/2" NPT Female
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Apollo 4N3A33A Bronze Dual Check Valve, 1/2" NPT Female


Currently unavailable.
We don't know when or if this item will be back in stock.

Specifications for this item
Brand Name Apollo Valve
Part Number 4N3A33A
Number of Items 1
Material Type Bronze
Size 1/2"
Maximum Pressure 175  PSI
LowerTemperature Range 33  Degrees Fahrenheit
Upper Temperature Range 180  Degrees Fahrenheit
Specification Met ASSE 1024 , CSA
System of Measurement Inch
UPC 670750862441
Connector Type NPT Female
EAN 0670750862441
Item Weight 0.86 pounds
Manufacturer Series Number DUC-4N Series
Overall Length 3.32  inches
Style Name Threaded
UNSPSC Code 40141607

The Apollo DUC-4N Series Dual Check Valve Backflow Preventer is designed to prevent cross connect... Read full product description



Product Features

  • Low head loss
  • Independently acting check valves
  • Compact and lightweight
  • Corrosion resistant
  • 5 Year domestic warranty

Product Details

  • Item Weight: 13.8 ounces
  • Shipping Weight: 13.6 ounces
  • Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B002EB8GKY
  • Item model number: 4N3A33A
  • Amazon Best Sellers Rank: #373,155 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
  • Product Warranty: For warranty information about this product, please click here

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Product Description

The Apollo DUC-4N Series Dual Check Valve Backflow Preventer is designed to prevent cross connections of non potable water (non-hazardous) into safe drinking water systems. It is a compact and economical device that consists of two independently-acting, spring-loaded check valves in a corrosion-resistant material. Each of the two spring-loaded check valves is designed to open at 1 psi differential in the direction of flow. The check valves will remain tightly closed until there is a demand for water downstream. If the downstream pressure of the device increases above the supply pressure or there is a reverse direction of flow, the check valves will close to prevent backflow. If the second check valve is prevented from closing tightly, the first check will close to provide protection from a backflow condition. Replaceable check modules. Industry lay lengths. Maximum Working pressure 175 psi. 33/180 degrees F Operating temperature range. ASSE1024 and CSA approved. Cast Bronze C84400 body. Brass union tailpiece and union nut. Glass-Filled PPO/Acetal check modules. Stainless steel spring. Buna-N Seat Discs.

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