Pulsafeeder Corrosion Coupon Rack - Manual (Page 4)

72-912-00 4 Revision C
Corrosion Coupon Rack
3 Installation
Corrosion coupon racks are typically installed on the side stream of re-circulating systems to allow for
controlled testing of coupon samples. Samples are periodically removed and examined by a laboratory in
order to calculate corrosion rates and other effects such as pitting.
1) Securely fasten the coupon rack to a wall or other rigid surface.
2) Secure inlet and outlet piping using a suitable pipe clamp.
3) The coupon rack is designed with the inlet on the bottom and the outlet at the top, there must be more
pressure on the inlet side than there is on the outlet side in order for flow to occur.
4) Do not install any ancillary equipment on the inlet side of the sample stream, e.g, metering pumps,
sensors or analyzers.
5) Avoid installations that have variable flow velocities; installation of a flow control valve may be required.
6) Install inlet and outlet isolation valves (unless equipped).
The corrosion coupon rack is designed for outdoor installations, PVC and CPVC models should not be
exposed to direct sunlight and must be protected from environmental conditions. Verify that the pressure and
temperature of the installation do not exceed those in the specifications section of this manual.