C o r r o s i o n
805.409.4050 | www.okote.net
s o l u t i o n s
tHE o’kotE AdVAntAGE
A tradition of High standards in Corrosion Protection
Corrosive elements cause millions of dollars in damage through lost time, materials and labor. For years, our industry has searched for an answer to this
expensive problem. O’kote has the solution.
O’kote PVC Coating is a complete and total protection package for your entire conduit system. By encapsulating the conduit, O’kote prevents corrosion
from attacking weak points in your raceway system. O’kote PVC Coating is a complete system with more than 2,500 varieties of fittings in stock, as well as
corrosion-resistant supports and patching compounds.
O’kote PVC coated conduit and fittings set quality standards throughout the industry. O’kote PVC Coating has achieved it’s outstanding reputation through
careful attention to every step of the manufacturing process. O’kote is unique in the industry, as we use 100% domestic conduit only and UL listed conduit
couplings.
O’kote PVC Coating uses revolutionary, state of the art machinery to insure quality and maximize efficiency. O’kote employs “Green” manufacturing equipment
and processes, creating the only environment-friendly PVC coating facility in the industry.
o’kote’s Commitment to Quality and Customer support
•UniqueGreenManufacturingFacility-EnvironmentFriendly
•O’koteonlyusesDomesticConduitmadefromDomesticSteelinthecoatingprocess
•O’kotehasaConduitMarkingSystem(patent pending)toinsureproperinstallation
•SuperiorContractorInstallationTrainingandSupport
•InstallationToolRentalProgram
•O’kotepassesaULVerified10DayBoilTestfollowedbyaZincPreeceTest
CAMERA-READY LOGOTYPE OF THE UL LISTING MARK FOR CANADA AND THE U.S.
These Marks are registered by Underwriters Laboratories Inc.
UL
C
UL
US LISTED C
US
The PVC Coating adhesion performance of this product Has been verified by UL for a 10 Day High
Temperature (218⁰ F) H2O Adhesion Test followed by a Zinc Preece Test. (AS TM D870-15, NEMA
RN1-3.8, UL6-6.2.2) Electrical Rigid Metal Conduit with Polyvinyl Chloride (PVC) Coating Verified
for PVC Adhesion Performance.
VeRified by UL - dyJC
LISTED
UL
C
C
UL
US LISTED
US LISTED
C
UL
UL
C
US
PVC Coated Rigid Metal Conduit
LISTED
US LISTED
C
The minimum height of the registered trademark symbol
shall be 3/64 of
an inch. When the overall diameter of the UL Mark is less than 3/8 of an inch,
the trademark symbol may be omitted if it is not legible to the naked eye.
UL
US
LISTED
ERMC-S
C UL US
LISTED
E472858
For Use With
Threaded Fittings Only
RELATIVE DESIGN & PROPORTIONS OF THE UL LISTING MARK FOR CANADA AND THE U.S.
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C F A F
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UL
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Properties of PVC investigated as primary Corrosion Protection
Properties of zinc investigated as primary Corrosion Protection
“C” and “US”
Consult
for Proper Installation
30 units Manufacturer
34 units
P
KEY TO DIMENSIONS
N
P
J
P
UL Mark
8 units
A
13 units
B
14 units
C
15 units
D
17 units
E
20 units
F
24 units
G
29 units
H
R
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I
J
K
L
M
N
0
35 units
59 units
85 units
87 units
176 units
216 units
Q
R
“LISTED”
T 201 units
T
D
E
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H
US LISTED
P
56 units
75 units
L
0
12
24
36
48
60
72
84
96
108
120
132
144
156
168
180
© 2016 O’kote Inc.
Specifications are subject to change without notice.
necessity Can Be the Mother of innovation…
A large industrial plant in the Gulf Coast was partially shut down due to a broken underground electrical line. The 5kv wire was installed in 4” PVC coated
conduit. After a two week shut down and a lengthy investigation, it was determined that the conduits were not screwed together properly. The conduit threads
had only engaged 1 to 2 threads of the coupling. The installer didn’t have a way to verify the integrity of the conduit connection.
O’Kote’s O’Guard Marking System (patent pending) insures a proper thread connection every time in the field
and is easily inspected even after installation. When the Yellow Mark disappears into the sleeve, you know
there are five threads engaged per NEC Article 500.8(E). Make sure your PVC Coated Conduit material has
the O’Guard mark!
Corrosive elements cause millions of dollars in damage through lost time, materials and labor. Regardless of
the materials used to combat these corrosive forces, they are only as good as the quality of the installation. In
electrical conduit systems, improper installation of the raceway or fittings can cause expensive downtime and
potential injury.
Performing the proper installation insures that the installed system is SAFE.
o’kote PVC Coated Conduit and Fittings has the answer to
your sAFE raceway installation.
•TheO’GuardMarkingSystem(patent pending)oneverypieceofO’kotePVCCoatedConduitallows
visualverificationthatconduitsareproperlythreadedintocouplingsandfittings.
•TheO’GuardMarkingSystem(patent pending)isalsoinstalledoneveryO’kotePVCCoatedElbow.
805.409.4050 | www.okote.net
instAllAtion ProCEdurEs
o’kote recommended installation Procedures
PVC coated conduit is installed in much the same manner as conventional
rigid galvanized steel conduit; however, certain precautions must be taken
to compensate for the exterior coating and to assure satisfactory results.
By following these guidelines and using the proper tools, a damage-free
installation can be obtained.
from the cut. This “pencil-cut” will allow the threader dies to engage more
readily. If the end is not trimmed, additional pressure will be required to
engage the dies.
When installing PVC coated conduit or elbows into couplings, PVC coated
fittings or threaded enclosures, it is imperative that the threads be engaged
five turns into the receiving hub, per NEC article 500.8(E). O’kote’sO’Guard
MarkingSystem(patent pending),onfulllengthsofconduitandelbows
allowsvisiblefieldverificationthatfivethreadsareengaged.
O’Kote offers an electric bender manufactured to accept 1/2” through 2”
PVC coated conduit, allowing damage free bending.
Use a reamer to remove any burrs or sharp edges caused by the cutting
operation
For 2 1/2” and larger sizes, a hydraulic bender is recommended. Shoes
especially designed for PVC coated conduit are available from most
manufacturers. If existing rigid hydraulic shoes (not EMT) are to be modified,
It is recommended that a yoke vise be used in the field for clamping PVC
acceptable results
canOF
beTHE
obtained
by machining
from
theTHE
inside
CAMERA-READY
LOGOTYPE
UL LISTING
MARK FOR.060”
CANADA
AND
U.S. area
coated conduit. When using a yoke or any other vise, it is recommended
theareshoe.
These of
Marks
registered by Underwriters Laboratories Inc.
that hardened steel jaws be replaced with adapters that provide greater
Threading PVC coated conduit with RIDGID hand dies requires modification
clamping force to prevent the pipe from spinning during the threading
to the dies. The inside diameter of the pipe guide to the die head must be
operation.
machined out .120” to compensate for the PVC coating. Factory modified die
To hold PVC coated conduit in any other vise, take two pieces of rigid conduit
heads are available from your distributor.
one size larger than the conduit to be threaded 6” - 8” long. Using a band
After new threads have been cut, it is important that corrosion protection be
saw, slice them lengthwise slightly off center. Use the smaller pieces as a
applied to the exposed metal. Use a de-greasing spray to thoroughly clean
shell around the conduit (throw away the large ones). This will grab onto the
the threads and internal ream. Then apply a conductive corrosion inhibitor
large area, allowing a strong grip without damage to the coating.
liberally to the threads per NEC article 300.6(a).
It is preferred that a roller type cutter be used in cutting the conduit as it
results in a 1/4” exposed area of pipe before the start of the PVC jacket. This
will allow the threader dies to engage the conduit easier and lessen pressure
at the clamped area.
UL
C
UL
US LISTED C
LISTED
UL
C
A hacksaw or band saw will result in a flush cut of the PVC and conduit.
In this instance it is recommended to taper-trim the PVC starting at 1/4”
C
UL
US LISTED
US LISTED
C
UL
UL
C
U
LISTED
US LISTED
C
The minimum height of the registered trademark symbol
shall be 3/64 of
an inch. When the overall diameter of the UL Mark is less than 3/8 of an inch,
the trademark symbol may be omitted if it is not legible to the naked eye.
UL
US
LISTED
C
RELATIVE DESIGN & PROPORTIONS OF THE UL LISTING MARK FOR CANADA AND THE U.S.
KEY TO DIMENSIONS
N
P
J
F
C F A F
G
J
P
R
UL Mark
8 units
A
I
30 units
UL
LISTED
“C” and “US”
34 units
P
Corrosion solutions
specifications for o’kote PVC Coated
Galvanized Conduit and Fittings
1.
All conduit prior to coating shall conform to: Federal Specification
WW-C-581E, ANSI specification C80.1 and UL 6.
2.
The conduit shall be “Hot Dipped” galvanized inside and out with galvanized
threads. The galvanized threads shall be coated with electrically conductive
zinc paint. The zinc coating shall be intact & undisturbed.
3.
Conduit shall be investigated by Underwriters Laboratories for both
zinc as the primary coating and the PVC (polyvinyl chloride) as the
primary coating ensuring double protection. Conduit shall be labeled
with the UL label having only one exception requiring the use of
threaded fittings. No disclaimer.
4.
All coated conduit shall conform to NEMA Standard No. RN-1.
5.
The interior of the conduit shall have a brown urethane coating of a
nominal thickness of .002” (2 mils).
6.
The exterior of the conduit shall have a PVC coating of a minimum
thickness of .040” (40 mils) applied by dipping in liquid plastisol.
7.
The exterior of the conduit and elbows shall have a marking system to
insure proper thread penetration into couplings and fittings.
8.
The conduit shall be bendable without damage to either interior or
exterior coating.
9.
A .002” (2 mils) nominal thickness coating of brown urethane shall
be applied to the interior and the threads of all fittings.
10. A .040” (40mils) minimum thickness coating of PVC shall be applied
to the exterior of all fittings. The coating shall be applied using the
plastisol method.
11. Strut channel, strut fittings shall have a .020” (20mils) nominal
thickness coating of PVC on all surfaces.
12. The PVC coating on all form 8 fittings shall form a gasket-like flange
of at least 5/16” wide and .040” thick covering the top of the fitting
around the opening.
13. The PVC coating on all form 7 and form 8 covers shall form a NEMA
4X gasket-like flange of at least 5/16” wide and .040” thick covering
the bottom of the cover with a square sealing ring that mates with
the flange of the fitting.
14. Stainless steel encapsulated screws shall be supplied with all form
7 and form 8 fittings.
15. All hubs on all fittings and couplings shall have a PVC sleeve
extending one pipe diameter or 2 inches, whichever is less. The I.D. of
the sleeve to be equal to the O.D. of the uncoated pipe.
16. The bond between the coatings and the metal shall be greater than
the tensile strength of the coatings.
© 2016 O’kote Inc. Specifications are subject to change without notice.
17. A loose coupling shall be supplied with each length of conduit.
18. RA clamps shall have a minimum of .040” (40 mils) coating
throughout. All nuts for RA clamps and U-bolts shall be encapsulated
in a hexagon shape to fit standard sockets.
General Properties for O’Kote PVC Coated
Galvanized Conduit and Fittings
Hardness
85-90 Shore A
Dielectric Strength
400 Volts/mil @ 60 cycles
Aging
1,000 hours Atlas Weatherometer
Elongation
200%
Temperature
The polyvinyl chloride compound shall conform at -10 degrees Fahrenheit
temperature to Federal Specifications LP-406b, Method 2051, Amendment
1 of 25 September 1952 (ASTMD-746). O’Kote brown is not recommended
for use in areas where it will be exposed to sustained temperatures of 200
degrees Fahrenheit or exposed to fire.
Flammability
If subjected to sustained flame or sustained heat above 400 degrees
Fahrenheit, PVC will burn. PVC is self-extinguishing at room temperature.
Toxicity
Prolonged exposure to heat greater than 200 degrees Fahrenheit or exposure
to fire may cause the plastic coatings to release harmful emissions posing
a potential health hazard to persons subjected to such emissions.
Bonding Test
Using a sharp knife, make two parallel cuts through the coating 1/2” apart
and 4” long. Make a cut connecting those two cuts and work with a knife
underneath the plastic to free a plastic tab. The tab shall be pulled with a
pair of pliers away from the pipe. The tab should tear leaving particles of
plastic on the metal surface of the conduit indicating the bond is stronger
than the tensile strength of the coating.
C o r r o s i o n
s o l u t i o n s
www.okote.net
C
UL
US LISTED
805.409.4050 | 957 Faulkner Road #112 | Santa Paula, CA 93060
© 2016 O’kote Inc. ~ 022016