Val-Matic 1-16 in. FloodSafe Inflow Preventer - Manual (Page 2)

1
1-16 in. FloodSafe
®
Inflow Preventer
OPERATION, MAINTENANCE AND INSTALLATION
INTRODUCTION
This manual will provide you with the information to
properly install, maintain and ensure a long service
life for the FloodSafe
® inflow preventer. The
FloodSafe ® is to be installed on the outlet of an air
release or air/vacuum valve to prevent cross
contamination of the potable water system due to
flooding and malicious tampering as described in
ASSE Standard 1063. The FloodSafe
® is designed
with two float checks that are open during normal
pipeline operation to allow full airflow in both
directions. The float check(s) will rise and seal when
the surrounding atmosphere is filled with water.
RECEIVING AND STORAGE
Inspect the FloodSafe ® upon receipt for damage in
shipment. Unload all devices carefully to the ground
without dropping. Remove all blocking material
inside of the metal basket.
The devices should remain boxed, clean and dry
until installed to prevent weather related damage.
For long term storage greater than six months, the
rubber seat should be coated with a thin film of FDA
approved grease such as Lubriko #CW-606. Do not
expose rubber seat to sunlight or ozone for any
extended period.
DESCRIPTION OF OPERATION
The FloodSafe ® inflow preventer is designed with a
lower chamber and upper, redundant chamber. Both
chambers contain identical float checks that are
open during normal pipeline operation and allow full
airflow in both directions. If flooding occurs the
lower float check will rise, preventing floodwater from
reaching the outlet of the air valve and subsequently
the pipeline. If the lower float check fails the upper,
redundant float check will close preventing
floodwater from reaching the air valve. The basket
screen prevents debris from interfering with the
operation of the FloodSafe
® .
Figure 1. FloodSafe ® Inflow Preventer
Figure 2. Typical Installation