DeZURIK
APCO CSV-1600 Surge Check Valves
D12022
Page 4
January 2013
Description
APCO CSV-1600 Surge Check Valve is designed for installation to the inlet of the existing Air/Vacuum
Valve on the line. It consists of a body, seat, flow-disc and compression spring. The surge check unit will
operate on the inter-phase between the kinetic energy and relative velocity flows of air and water. After
air passes through and water rushes into the surge check, the disc starts to close, reducing the rate of
flow of water into the air valve by means of throttling orifices in the disc to prevent water hammer in the
air valves. The surge check orifices are adjustable for regulation in the field to suit operating conditions.
Handling and Storage
Lifting the valve improperly may damage it. Do not fasten lifting devices through the seat opening in the
body. Lift the valve with
slings, chains or cables fastened around the valve body, or fastened to bolts or
rods through bolt holes in the flanges.
If installation will be delayed, place valve indoors in secure, weather tight storage. If temporary outside
storage is unavoidable, make sure a vermin proof rain cover (water shedding tarp, etc.) is secured
around/over the valve to keep off rain and mud. Skid and set the assembly on a flat, solid, and well
drained surface for protection from ground moisture, runoff and pooled rain water.
Installation
The Surge Check Valve should always be installed in a vertical position. An isolation valve between this
unit and the transmission (pipeline) system is recommended.
•
Before installation, remove foreign material such as weld spatter, oil, grease, and dirt from the
pipeline.
•
Prepare pipe ends and install valves in accordance with the pipe manufacture’s instructions for
the joint used.
Do not deflect the pipe-valve joint. Minimize bending stresses in the valve end
connection with pipe loading.
•
Tighten the flange bolts or studs in a crisscross pattern and minimum of four stages.
Fusion/Powder Coated Valves
Valves with fusion/powder coated exterior paint require flat washers to be
installed under the flange nuts when installing the valve to the pipeline flange to
prevent the paint from cracking or chipping.
