Chem-pro, 2 how to install the tubing and fittings, 3 dfd (diaphragm failure detection) – Xylem C3V CHEMICAL METERING PUMPS User Manual

Page 6: L -i n d fd bu i t, Page 6 page 7, Footvalve / strainer, Injection / check valve, Dfd sensors diaphragm, Pumphead

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5.2 How To Install the Tubing and Fittings

!

Suction (Inlet) Tubing
Locate the inlet fitting of the pump head. Push the clear suction tubing onto the
fitting barb.

Page 6

Page 7

C3

C3

CAUTION: Proper eye and skin protection must be worn when

installing and servicing the pump and fittings.

!

Footvalve / Strainer
Trim the inlet end of the suction tubing so
that the strainer will rest approximately two
inches from the bottom of the solution tank.
This will prevent sediment from clogging the
strainer. Press the strainer’s barbed fitting
into the end of the tube. Drop the footvalve /
strainer into the solution tank.

FootValve
Strainer
Assembly

Suction
(inlet)
Tubing

Footvalve / Strainer

Discharge
Pipe or
1/2” Tubing
(not included)

Injection / Check Valve

Pipe
Tee

Install

upward

for best

results

!

Injection / Check Valve Fitting Installation
The Injection / Check valve fitting is designed
to install directly into 1/2” female pipe
threads. This fitting will require periodic
cleaning, especially when injecting fluids that
calcify such as sodium hypochlorite.
Install the Injection / Check valve directly into
the piping system. To prevent trapped
gasses, install the fitting in an upward
direction.
Use Teflon thread sealing tape on
the pipe threads.

At high pressures, Blue-White recommends
using a threaded connection.

Injection / Check Valve is available with 1/2”
Male NPT or 1/2” Hose Barb. This is based
on the outlet connection selected for the C3
pump.

Keep discharge (outlet) tube as short as
possible.

Hose
Barb

1/2” Male
NPT

1/2” Male NPT
(optional 1/2”
Hose Barb)

5.3 DFD (Diaphragm Failure Detection)

C3F Display

C3F Display

C3V Display

C3V Display

Blue-White Industries

Made in the USA

tm

CHEM-PRO

Diaphragm
Failure
Detection

C3F | Diaphragm Metering Pump

NEMA 4X

IP66

tm

CHEM-PRO

C3V | Diaphragm Metering Pump

Made in the USA

MODE

PRIME

Program

Minimum

Maximum

Blue-White Ind.

IP66

NEMA 4X

ALARM

ALARM

ALARM

ALARM

DFD ALARM

icons

DFD ALARM

icons

DFD Sensors

Diaphragm

The C3 includes DFD sensors built directly into the pump. Although it doesn’t happen
often, diaphragm failure can occur. The DFD sensors will detect the chemical behind
the diaphragm caused by diaphragm failure. The pump will then shut down and
energize an internal 3 amp relay. You can wire the 3 amp relay to an alarm, SCADA
system, backup pump, or nothing at all.

If the DFD Alarm has been
triggered, the diaphragm
must be replaced and the
pumphead must be
thoroughly cleaned.

You can reset the DFD
alarm by pressing the
Start/Stop button.

If the DFD Alarm is triggered, the DFD and ALARM icons will begin
flashing.

Note: The DFD system will not reset until you have removed all traces of chemical
from behind the diaphragm.

Pumphead

Outlet

(discharge)

Inlet

(suction)

l -I

n D

FD

Bu

i t

Dia

rag

F

ilu

e

ph

m

a

r

Det

ct

n

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io

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