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Retractable Flat Surface pH/ORP Electrodes for
Insertion into Tanks and Main Lines
ELECTRODE
FLAT
SENSING
SURFACE
DOUBLE
O-RING
SEAL CONNECTOR
OPTIONAL T/C ELEMENT
POTTED HERE
MAXIMUM INSERTION
DEPTH IS 305 MM (12")
FROM THIS POINT
LARGE
DIAMETER
SAFETY STOP
1" MALE
NPT PIPE
THREAD
ADAPTOR
BODY
PACKING
GLAND
RETAINER
INSERTION
TUBE SEAL
PACKING
U Acrylamide Gel Standard
U Can Be Installed in Any Direction
U Retractable Design Allows Removal
Without System Shutdown
U Detachable Electrode for Easy
Maintenance and Removal
The PHE-6820B electrode and assembly
features a retractable design for insertion
into tanks and main lines. The assembly,
when used with a 1" full port or larger ball
valve (user supplied), allows the electrode
to be removed without shutting the system
down. This electrode can be mounted in
any location, even up through the bottom
of a tank with the electrode surface facing
upward. Its unique design affords mounting
in any direction and is suitable for most
systems’ inherent design.
The flat surface design minimizes fouling
and coating and eliminates electrode
breakage. Turbulent flow across the
electrode surface results in a scrubbing
action that keeps the electrode clean.
The flat surface electrode is specifically
designed for difficult applications such as
oily waste water, emulsions, lime slurries,
and flocculants.
SPECIFICATIONS
M aximum Temperature
Standard Models: 87°C (190°F)
CPVC body 100°C (212°F) PVDF body
Mounting Assembly: CPVC or PVDF,
FKM O-Rings; 1 MNPT Pipe thread
A vailable Options:
“-HF” Fluoride resistant, for additional cost
“-LC” Low conductivity, for additional cost
“-GL” Ground loop, for additional cost
PHE-6820B with
PHEH-68-10
PHE-6820B
305 mm (12"), 457 mm (18"),
610 mm (24") insertion depths.
305 mm (12") available in PVDF.
PACKING
GLAND
O-RING
SLIDING
GLAND
O-RING
FACE
SEAL
BACK-UP
COMPRESSION
SEAL AND
INSERTION
TUBE CLAMP
CLEARANCE REQUIRED
FROM THIS POINT
FOR ELECTRODE
INSERTION TUBE
REMOVAL
CONNECTION
AND SEAL
CABLE
CAP
CABLE
WHEN OPTIONAL
T/C IS ORDERED,
PVC JACKETED
CABLE IS SUPPLIED.
Mounting assembly comes
with 3 m (10') cable with
BNC connector plus
instruction sheet.
Electrodes
To Order
Model No. Description
PHE-6820B
PHE-6821
ORE-6820B
ORE-6821
Mounting Assemblies — Required for Installation
PHEH-68-10
PHEH-68K-10
PHEH-68-10-(*)
PHEH-68K-10-(*)
PHEH-6820
PHEH-6830
Note: Temperature compensation is not required with ORP electrodes.
Order electrode and mounting assemblies separately. Materials of construction must be the same.
Mounting assemblies come with 3 m (10') cable with BNC connector. Cable lengths available up to
15 m (50'), additional cost per extra foot. Consult Engineering for ordering information.
* Specify ATC Sensor
Order
Code Description
PT100 100 Ω Pt RTD
PT1K 1000 Ω Pt RTD
TH700 Series 700 thermistor
R3K 3000 Ω Balco
Ordering Examples: PHE-6820B, CPVC pH electrode and PHEH-68-20, CPVC mounting assembly
with 6 m (20') cable.
PHE-6821, PVDF pH electrode and PHEH-68-10-PT100, mounting assembly with 100 Ω Pt RTD ATC.
pH electrode, CPVC
pH electrode, PVDF
ORP electrode, CPVC
ORP electrode, PVDF
305 mm (12") CPVC without ATC
305 mm (12") PVDF without ATC
305 mm (12") CPVC with ATC
305 mm (12") PVDF with ATC
457 mm (18") CPVC without ATC
610 mm (24") CPVC without ATC
Note: At the time of initial purchase, please order both
electrode and mounting assembly. Mounting assembly
includes insertion assembly and cable. If ordered
with automatic temperature compensation (ATC), the
temperature compensator is built into the insertion
assembly. When electrode has expired, simply
re-order electrode.
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