Cart 0 Product Products (empty)
No products
To be determined Shipping
$0.00 Total
Product successfully added to your shopping cart
Quantity
Total
There are 0 items in your cart. There is 1 item in your cart.
Total products
Total shipping To be determined
Total
New Reduced price! 
View larger
View larger 
ASSE (Plumbing) 1063-2008
M00004879
New product
ASSE (Plumbing) 1063-2008 Performance Requirements for Air Valve & Vent Intake Preventers
standard by American Society of Sanitary Engineering, 2008
In stock
More info
Full Description
The purpose of Air Valve and Vent Inflow Preventer Assemblies is to allow the release and admission of high volumes of air through air valves and air vents in water distribution systems but prevent the entry of contaminated water when the air valve outlet becomes submerged from flooding or is the target of malicious tampering.This assembly shall consist of a primary and a secondary chamber. Each chamber shall contain an independent float-operated closure member. The primary chamber is the lower chamber. The secondary or upper chamber is redundant and will close in the event the primary chamber fails to close.