Current through Register Vol. 50, No. 6, December 1, 2023
RELATES TO:
KRS
318.130,
318.150,
42 U.S.C.
300g-6
NECESSITY, FUNCTION, AND CONFORMITY:
KRS
318.130 requires the department to promulgate
administrative regulations establishing the Kentucky State Plumbing Code to
regulate plumbing, including the quality, weight, installation, and storage of
material. This administrative regulation establishes the manufacturer's
specification number for the quality and weight of material that shall be used
in the installation of plumbing systems and establishes minimum specifications
for the intended use. This administrative regulation also establishes the
minimum requirements for the storage and installation material used in the
installation of plumbing systems.
Section
1. Quality and Handling of Materials.
(1) The material used in a drainage or
plumbing system or part of a system shall be free of defects and shall be
handled as to not cause damage to the material.
(2) All pipes and fittings shall be:
(a) Inspected for cracks or other damage
prior to installation; and
(b)
Installed in compliance with the manufacturer's recommendations unless
otherwise stated in 815 KAR Chapter 20.
Section 2. Storage.
(1) Schedule 40 or 80 PVC and ABS.
(a) Pipe shall remain in lifts until ready
for use. Lifts shall not be stacked more than three (3) high and shall always
be stacked wood-on-wood. Loose pipe shall be stored in racks with a minimum
support space of three (3) feet. Pipe shall be shaded but not directly covered
if stored outside in high ambient temperatures to provide for free circulation
of air and reduce the heat buildup due to direct sunlight exposure.
(b) Fittings shall be stored in their
original cartons to remain free of dirt and to reduce the possibility of
damage. As a best practice, fittings shall be stored indoors.
(2) CPVC, SDR 11.
(a) CPVC pipe, tubing, and fittings shall be
stored under cover to avoid unnecessary dirt accumulation and long-term
exposure to sunlight.
(b) Pipe and
tubing shall be stored with continuous support in straight, uncrossed
bundles.
(3) PEX. PEX
shall not be stored where it will be:
(a)
Exposed to direct or indirect ultraviolet light (sunlight);
(b) Exposed to materials that affect the
basic properties of PEX, brass, or copper; or
(c) Come into contact with chemicals, pipe
thread compounds, putty, and mineral or linseed oil compounds.
(4) Solvent cement and primers.
Solvent cement and primers shall not be exposed to ignition, sparks, open
flames, or heat during storage and shall not be used beyond their marked shelf
life.
Section 3.
Marking. Each length of pipe, fitting, trap, fixture, or device used in a
plumbing or drainage system shall be indelibly marked with the:
(1) Weight or quality; and
(2) Maker's mark or name (manufacturer's
specification number).
Section
4. Vitrified clay pipe, concrete pipe, truss pipe, and SDR 35 pipe
shall be produced, labeled, and used only as established in subsections (1)
through (4) of this section.
(1) Vitrified
clay pipe shall be as established in ASTM C700, and fittings ASTM
C425.
(2) Concrete pipe shall be as
established in ASTM C14, and fittings ASTM C443.
(3) Truss pipe shall be as established in
ASTM D2680, unless it is solid wall truss pipe, which shall be as established
in ASTM D2751.
(4) Extra heavy SDR
35 sewer piping shall be as established in ASTM D3034.
(5) Joints. Joints in pipe and fittings with
no more than two (2) pipe sizes between vitrified clay, ABS, or PVC to cast
iron pipe and fittings or the joining of either material may be made with the
proper fittings by using a dispersion grade PVC ring produced and labeled as
ASTM C443, C425, or C564, or an elastomeric PVC coupling.
Section 5. Cast iron Pipe. (Hub and Spigot
and No-hub).
(1) Extra heavy. Extra heavy
cast-iron pipe and fittings shall be produced and labeled as ASTM
A74.
(2) Service-weight.
Service-weight cast iron pipe and fittings shall be produced and labeled as
ASTM A74 and C1540.
(3) No-hub
cast-iron and fittings shall be produced and labeled ASTM 888 or CISPI
301.
(4) No-hub couplings shall be
produced and labeled as ASTM C1277, C564, C1563, or CISPI 310.
(5) Coating. Cast-iron pipe and fittings for
underground use shall be coated with:
(a)
Asphaltum;
(b) Coal tar pitch;
or
(c) A coating produced and
labeled as ASTM A743.
(6) Instructions for Cutting Cast Iron Soil
Pipe. During installation assembly, pipe and fittings shall be inserted into
the hub or into the gasket firmly and seated against the bottom of the hub or
against the center rib or shoulder of the gasket. To provide a sound joint with
field cut lengths of pipe, ends shall be cut square and as smooth as possible
with a metal cutting saw or snap type cutters.
(7) General Installation Instructions for
Cast Iron Pipe.
(a) Vertical piping.
1. Vertical piping shall be secured at
sufficiently close intervals to maintain alignment and to support the weight of
the pipe and its contents. Approved metal clamps or hangers shall be used to
support stacks at their bases and at sufficient floor intervals to meet the
requirements of local codes.
2. If
vertical piping is to stand free of any support or if no structural element is
available for support and stability during construction, the piping shall be
secured in its proper position by means of adequate stakes or braces fastened
to the pipe.
(b)
Horizontal piping, suspended.
1. Ordinary
horizontal piping and fittings shall be secured at sufficiently close intervals
to maintain alignment and prevent sagging or grade reversal. Each length of
pipe shall be supported by a hanger located not more than eighteen (18) inches
from the joint.
2. Terminal ends of
all horizontal runs or branches and each change of direction or alignment shall
be supported by a hanger.
3. Closet
bends installed above ground shall be firmly secured.
(c) Horizontal piping, underground.
1. If trenches are dug too deep, the piping
shall be supported with approved grillage laid on firm ground as established in
815
KAR 20:130. To maintain proper alignment during
backfilling, the pipe shall be stabilized in proper position by partial
backfilling and cradling.
2. Piping
laid on grade shall be adequately secured to prevent misalignment when the slab
is poured.
3. Closet bends
installed under slabs shall be adequately secured.
(d) Joints.
1. Joints in cast iron shall either be
caulked, screwed, or made with the use of neoprene gaskets. Neoprene gaskets
shall be produced and labeled as ASTM C564.
2. Steel, brass, and copper joints connected
to cast iron pipe shall be either screwed or caulked joints. Caulked joints
shall be made by the use of a caulking spigot.
3. Cast iron coupling for joining hubless
cast iron pipe shall consist of a neoprene gasket, cast iron clamps produced
and labeled as ASTM A48, and stainless steel bolts and nuts produced and
labeled as ANSI B 18.2.1 and ANSI B 18.2.2.
4. Lead and Oakum Joint Installation.
a. Insert the spigot into the properly
cleaned hub.
b. An oakum strand
shall be inserted into the joint which is of a diameter that can be pressed
into the joint by hand and sufficiently long to make three (3) turns around the
pipe. Drive the strand of oakum to the bottom of the joint using a yarning
iron. Pack the oakum solidly and evenly using a packing iron and
hammer.
c. Place additional strands
of oakum into the joint until it fills the hub to within one-half (1/2) inch of
the top, and using a packing iron and hammer, pack this oakum until it forms a
uniform surface one (1) inch from the top of the hub.
d. Pour molten lead into the joint at one (1)
spot between the hub and spigot until it arches up slightly above the top of
the hub.
e. When the lead has
cooled, drive it down at four (4) points around the hub using a caulking iron
to insure uniform caulking.
f.
Caulk the joint on the inside and outside edges using a sixteen (16) ounce ball
peen hammer and appropriate caulking irons.
5. Compression Joint Installation.
a. Fold and insert the one (1) piece rubber
gasket into the hub which has been properly cleaned.
b. Apply special gasket lubricant to the
spigot and inside of the neoprene gasket.
c. Push, draw or drive the spigot into the
gasketed hub with a pulling tool or suitable device.
6. No-hub Joint Installation.
a. Clamp and gasket installation. The
following procedures shall be taken to insure a proper joint:
(i) Place the gasket on the end of one (1)
pipe and the stainless steel or cast iron clamp assembly on the end of the
other pipe.
(ii) Firmly seat the
pipe ends against the integrally molded shoulder inside the neoprene
gasket.
(iii) Slide the clamp
assembly into position over the gasket and tighten the bands or clamps as
described below.
b.
Torqueing bands. A properly calibrated torque wrench, set at sixty (60) inch
pounds shall be used. The following procedure for applying torque to the band
assembly shall be used: The stainless steel bands shall be tightened
alternately and firmly to sixty (60) inch pounds of torque.
(i) Step 1. The inner bands shall be
tightened alternately and firmly to sixty (60) inch pounds of torque.
(ii) Step 2. The outer bands shall be
tightened alternately and firmly to sixty (60) inch pounds of torque.
(iii) Torqueing clamps. A properly calibrated
torque wrench, set at 175 inch pounds, shall be used. The following procedure
for applying torque to the clamp assembly shall be used: The stainless steel
bolts shall be tightened alternately, gradually, and firmly to 175 inch pounds
torque.
Section 6. Steel and Wrought iron Pipe.
(1) All wrought iron pipe shall be produced
and labeled with the latest ASTM "specifications for welded wrought iron
pipe".
(2) Steel pipe shall be
produced and labeled with the current ASTM specification number for welded
wrought iron pipe or welded and seamless pipe.
(3) Schedule 40 shall be the minimum
weight.
(4) For water distribution
or soil, waste and vent, galvanized pipe shall be used.
(5) Cutting and Reaming.
(a) Pipe shall be cut to length with a square
cut using the appropriate tool.
(b)
If the cut-to-length pipe is to be threaded or prepared for a mechanical
connection, it shall be reamed to the full inner diameter of the
pipe.
(6) Hangers and
Supports.
(a) Hangers, anchors and supports
shall be:
1. Of sufficient strength to support
the piping and its contents; and
2.
Securely attached to the building construction at intervals to support the
piping and its contents and made to allow for expansion, contraction,
structural settlement and vibration.
(b) Vertical piping.
1. Screwed piping shall be supported at every
other story height and supports shall be of ferrous metal.
2. Mechanical joint piping shall be supported
at every story height and supports shall be of ferrous metal.
(c) Horizontal piping.
1. Horizontal piping shall be supported at
intervals which keep the piping in alignment and prevent sagging.
2. Screwed and mechanical joint pipe one and
one-half (1 1/2) inches and over shall be supported at twelve (12) foot
intervals. One and one-quarter (1 1/4) inch and smaller shall be supported at
eight (8) foot intervals.
3.
Supports shall be of ferrous metal.
(7) Joints.
(a) Screw Joints.
1. Screw joints shall be made by the use of a
properly cut thread inserted into the female part of the fitting after applying
the recommended pipe joint compound sparingly to the male threads.
2. The screw joints shall be tightened
hand-tight to check for alignment and then tightened enough to insure a tight
leak-proof joint but shall not be over-tightened.
(b) Mechanical joints.
1. Mechanical joints for hot and cold water
shall not be used above ground unless the couplings are galvanized and the
gaskets are ASTM D2000, Grade N-R-615 BZ.
2. The pipe ends shall be lubricated with a
lubricant in compliance with the manufacturer's instructions and the gasket
shall be slipped over one (1) pipe end.
3. The pipe ends shall be connected and the
gasket shall be inserted into central spanning position.
4. The housing clamps shall be placed over
the gasket and the bolts and nuts tightened with a socket wrench.
(c) Steel connections to cast iron
pipe. Steel joints connected to cast iron pipe shall be either screwed or
caulked joints.
(d) PVC and ABS
pipe and fitting connections to steel. 1. PVC and ABS pipe and fitting
connections to steel shall be either a screwed or caulked joint.
(e) Stainless steel tubing to cast iron pipe
shall be made by caulking spigot.
(f) Stainless steel tubing to galvanized
steel pipe or copper pipe shall be made by the use of an adaptor.
(g) The joints between lead pipe and steel or
wrought iron shall be made by means of a caulking ferrule or a soldering
nipple.
Section
7. Brass Pipe, Copper Pipe, Seamless Stainless Steel Tubing, and
Brass Tubing.
(1) Brass pipe, copper pipe, and
brass tubing shall be produced and labeled with the latest specifications of
ASTM for "brass pipe, copper pipe, and brass tubing, standard sizes".
(2) Cutting, reaming, and sizing. The tube
shall be cut to exact length with a square cut using the appropriate tool.
(a) The tube shall have burrs and slivers
removed by using a reamer or other appropriate tool.
(b) The tube shall be brought to true
dimensions and roundness by using a sizing tool consisting of a plug and
ring.
(3) Cleaning. The
surface to be joined shall be clean and free from oil, grease and heavy oxides.
The end of the tube shall be cleaned with a fine sand cloth or a special wire
brush a distance slightly more than is required to enter the socket of the
fitting.
(4) Hangers and Supports.
Hangers, anchors and supports shall be:
(a) Of
material of sufficient strength to support the piping and its contents;
and
(b) Securely attached to the
building construction at sufficiently close intervals to support the piping and
its contents and made to allow for expansion, contraction, structural
settlement, and vibrations.
(c)
Vertical piping.
1. Copper tubing shall be
supported:
a. At each story for piping one and
one-half (1 1/2) inches and larger in diameter; and
b. At each story and not more than ten (10)
foot intervals for piping one and one-quarter (1 1/4) inches and smaller in
diameter.
2. Supports
shall be of copper material of sufficient strength which will not adversely
react with the piping material.
(d) Horizontal piping.
1. Copper tubing shall be supported at:
a. Six (6) foot intervals for one (1) inch
and smaller in diameter; and
b. Ten
(10) foot intervals for one and one-quarter (1 1/4) inch and larger.
2. Supports shall be of copper
material of sufficient strength which will not adversely react with the piping
material.
(5)
Joints.
(a) Soldered joints. Joints of copper
pipe, brass, and seamless stainless steel tubing shall be soldered. The
following procedures shall be used to solder a joint:
1. After cleaning, the surfaces shall be
covered with a thin film of mildly corrosive liquid or petroleum based pastes
that contain chlorides of zinc and ammonium. Self-cleaning flux shall not be
used in place of the cleaning pipe.
2. Excess flux shall be wiped off within the
fitting socket.
3. The tube end
shall be inserted into the socket, with the tube firmly seated against the end
of the socket.
4. Excess flux shall
be removed with a rag.
5. Heat
shall be applied to the fitting and then moved in order to heat as large an
area as possible. The fitting and joint shall:
a. Not be overheated; and
b. Be heated until the solder melts on
contact with the pipe and flows by capillary attraction into the
joint.
6. The heat shall
be removed.
7. The fitting and
joint shall be cooled before moving.
(b) Brazed joints. The following procedures
shall be used for a brazed joint:
1. Except as
provided in subparagraph 2 of this paragraph, after cleaning, the surface of
the tube end and the fitting socket shall be covered with a thin film of flux
in accordance with the recommendations of the manufacturer of the brazing
filler metal being used. Effort shall be made to avoid getting flux inside the
tube.
2. Flux may be omitted if
joining copper tube to wrought copper fittings with copper-phosphorus allows
(B-cup Series) which are self-fluxing on copper.
3. The tube end shall be inserted into the
socket hard against the stop and turn if possible.
4. Heat shall be applied to the parts to be
joined, with:
a. The tube heated first; and
b. The fitting at the base of the
cup heated next.
5.
Brazing wire, rod or strip shall be applied at the point where the tube enters
the socket of the fitting.
6. The
heat shall be removed.
7. The
fitting and joint shall be cooled.
(c) Flared joints; impact tools. The
following procedures shall be used for a flared joint.
1. The joints shall be cut, reamed, sized,
and cleaned.
2. The coupling nut
shall be slipped over the end of the tube.
3. The flaring tool shall:
a. Be inserted into the tube end; and
b. Be driven by hammer strokes to
expand the end of the tube to the desired flare.
4. The fitting shall be placed squarely
against the flare.
5. The coupling
nut shall be engaged with the fitting threads.
6. The joint shall be tightened with two (2)
wrenches, one (1) on the nut and one (1) on the fitting.
(d) Screw type flaring block.
1. The procedures established in
subparagraphs 1. and 2. of paragraph (c), subsection (6) of this section shall
be followed for impact flaring.
2.
The tube shall be clamped in the flaring block so that the tube is slightly
above the block.
3. The yoke of the
flaring tool shall be placed on the block so that the beveled end of the
compression cone is over the tube end.
4. The compressor screw shall be turned down
firmly, forming the flare between the chamber in the flaring block and the
beveled compressor cone.
5. The
flaring tool shall be removed and assembled pursuant to subparagraphs 4., 5.,
and 6. of paragraph (c) of this section.
(e) Mechanically formed tee connection.
1. A mechanically formed tee connection shall
be approved for use in a domestic hot and cold water distribution system above
ground only.
2. A mechanically
extracted collar shall be formed in a continuous operation consisting of
drilling a pilot hole and drawing out the tube surface to form a collar having
a height of not less than three (3) times the thickness of the tube wall. The
collaring device shall be fully adjustable so to insure proper tolerance and
complete uniformity of the joint.
3. All joints shall be brazed in accordance
with subsection (2) of this section and the manufacturer's instructions. A
soldered joint shall not be permitted.
(f) Mechanical couplings. Types K and L
copper tubing systems from two (2) inch through six (6) inch and used for water
distribution may be installed using mechanical pipe couplings of a bolted type
with a flush seal gasket along with grooved end copper fittings. Couplings
shall be of the angle pad design to obtain rigidity.
Section 8. Borosilicate Pipe,
Stainless Steel Tubing, Silicon Iron Pipe, Polyethylene Pipe, and Polypropylene
Pipe.
(1) Borosilicate pipe. Borosilicate pipe
shall be produced and labeled ASTM C1053 for drain, waste, and vent
applications.
(2)Stainless steel
tubing.
(a) Stainless steel tubing for hot and
cold water piping shall be produced and labeled either as ASTM A269 or ASTM
A312.
(b) Stainless steel tubing
for the soil, waste, and vent system shall be 304 or 316L produced and labeled
as ASME A112.3.1.
(3) PE
pipe used in acid waste systems shall be produced and labeled as ASTM
1204.
(4) PP pipe used in acid
waste systems shall be produced and labeled as ASTM D4101 or ASTM
F1412.
(5) Joints.
(a) Stainless steel tubing to cast iron pipe
shall be made by caulking spigot.
(b) Stainless steel tubing to galvanized
steel pipe or copper pipe shall be made by the use of an adaptor.
(c) Joints in PE and PP piping shall be made
by the heat fusion process.
(d)
Joints in PP shall be made with a union joint.
(e) Joints in borosilicate pipe shall be a
stainless steel mechanical joint.
(f) Joints between silicon iron pipe shall be
either caulk joint or stainless steel mechanical joint.
Section 9. Schedule 40, ABS and
PVC plastic pipe and fittings.
(1) All plastic
piping used in a drainage, waste, and vent system shall be:
(a) Schedule 40 or 80, Type 1, Grade 1, PVC
produced and labeled as ASTM D1785;
(b) Cellular core PVC produced and labeled
ASTM F891;
(c) Schedule 40 or 80
ABS produced and labeled as ASTM D2661; or
(d) Cellular core ABS produced and labeled as
ASTM F628.
(2) Pipe and
fittings shall be produced and labeled in accordance with the provisions of
ASTM D2665, as amended, for PVC and ASTM D2661 for ABS, and both shall bear the
National Sanitation Foundation seal of approval.
(3) All pipe and fittings shall bear the ASTM
designation together with the NSF seal, the manufacturer's identification, and
the size.
(4)
(a) The use of plastic pipe and fittings (PVC
or ABS) shall be limited to buildings in which the plumbing system does not
exceed forty-five (45) feet in height, measured from the grade plane, and
continuing through the vertical distance of the building to a maximum height of
forty-five (45) feet, unless:
(b)
The use of PVC and ABS piping is limited to schedule 40 or 80 produced and
labeled as ASTM D2665 and ASTM D1785 for PVC piping and ASTM D2661 for ABS
piping;
(c) The installation of the
plastic pipe and fittings (PVC or ABS) is made in compliance with the
manufacturer's recommendations, which shall be made available to the inspector;
and
(d) Firestop systems are
inspected in accordance with ASTM E2174 by an approved inspection
agency.
(5)
Installation.
(a) Underneath concrete floors.
Pipe and fittings shall be laid on stable earth conditions and have four (4)
inches of grillage on its bottom, top and sides. If ground is unstable, it
shall be removed and the excavation filled with grillage to the underneath side
of the piping. Soil or waste pipe shall not be placed in a concrete slab except
those pipes that pass vertically through it.
(b) Above concrete floors. Horizontal piping
shall be properly aligned and installed without strain. Piping shall not be
bent or pulled in position either before or after solvent welds have been made.
It shall be supported at intervals not to exceed four (4) feet and at the end
of the branches and at the change of direction and shall be so installed as to
permit freedom of movement. Vertical piping shall be supported at their bases
and all upward movement shall not be restricted. Closet flanges shall be
securely fastened to the floor through which it passes.
(6) Hangers. Hangers and straps shall be at
least one (1) inch wide and shall not compress, distort, cut, or abrade the
piping to allow free movement at all times.
(7) Joints.
(a) Joints in PVC Schedule 40 or 80 pipe and
fittings shall be solvent welded joints and shall be in compliance with ASTM
D2665.
(b) Joints in ABS pipe and
fittings shall be solvent welded joints and shall be in compliance with ASTM
D2661.
(c) ABS and PVC sewer piping
produced and labeled as ASTM 3034 shall be joined by solvent cement in
compliance with the applicable standard or with an elastomeric joint in
compliance with ASTM D3212.
(d)
Piping shall be cut square with a saw or pipe cutter designed especially for
plastic pipe. Pipe and fittings shall be protected from serrated holding
devices or abrasions.
(e) Burrs
shall be removed from both inside and outside of the pipe. Dust, dirt and
moisture shall be removed from the surfaces that shall be cemented.
(f) Solvent chemical cleaner recommended by
the company whose product is being installed shall be applied inside the
fitting and on the outside of the piping shall be joined.
(g) A paint brush shall be used to apply the
solvent cement in a moderate, even coating in the fitting socket as well as
covering the pipe on the joining surfaces.
(h) Joints shall be assembled as quickly as
possible before the cement dries. Insert the piping into the fitting socket
turning the pipe slightly to ensure even distribution to the cement. Hold the
piping in a firm position so it does not "back out" of the joint.
(i) Remove excess solvent cement from the
exterior of the joint with a clean dry cloth. The joint shall not be handled
for a two (2) minute period. A fifteen (15) minute period shall be allowed for
the joint to develop hanging strength.
(j) A Cemented pipe joint shall not be made
in conditions of excessive moisture (ninety (90) percent humidity level) or if
the temperature is below forty (40) degrees or above ninety (90) degrees
Fahrenheit.
(k) ABS and PVC pipe
and fitting connections to steel, brass, copper, or cast iron pipe shall be
either a screwed or caulked joint.
(l) Joints between Schedule 40 PVC or ABS
pipe and cast iron pipe may be made by the use of a neoprene gasket produced
and labeled as ASTM C564.
(m) Caulk
joints shall be made with the use of either a PVC or ABS or cast iron caulking
spigot.
(8) Commingling
of Plastic Pipe. Plastic pipe shall not be commingled except through the use of
male and female adapters or other transition fittings approved in accordance
with
815 KAR
20:020, Section 4.
(9) Mixing of plastic and Metal Piping.
Plastic and metal piping shall discharge into one another by the use of proper
fittings and adapters.
(10) Thermal
Expansion. Each plumbing installation shall be engineered and designed giving
due consideration to the expansion characteristics of the material. Expansion
tables for both PVC and ABS schedule 40 plastic piping are as follows:
PVC-DWV TYPE 1 THERMAL EXPANSION
TABLE
|
Chart shows length change in inches
vs. degrees temperature change
|
Lg. Ft
|
40° F
|
50° F
|
60° F
|
70° F
|
80° F
|
90° F
|
100° F
|
20 |
.278
|
.348
|
.418
|
.487
|
.557
|
.626
|
.696
|
40 |
.557
|
.669
|
.835
|
.974
|
1.114
|
1.235
|
1.395
|
60 |
.835
|
1.044
|
1.253
|
1.462
|
1.670
|
1.879
|
2.088
|
80 |
1.134
|
1.392
|
1.672
|
1.949
|
2.227
|
2.506
|
2.784
|
100 |
1.392
|
1.740
|
2.088
|
2.436
|
2.784
|
3.132
|
3.480
|
ABS-DWV TYPE 1 THERMAL EXPANSION
TABLE
|
Chart shows length change in inches
vs. degrees temperature change
|
Lg. Ft
|
40° F
|
50° F
|
60° F
|
70° F
|
80° F
|
90° F
|
100° F
|
20 |
.536
|
.670
|
.80
|
.938
|
1.072
|
1.206
|
1.340
|
40 |
1.070
|
1.340
|
1.610
|
1.880
|
2.050
|
2.420
|
2.690
|
60 |
1.609
|
2.010
|
2.410
|
2.820
|
3.220
|
3.620
|
4.020
|
80 |
2.143
|
2.680
|
3.220
|
3.760
|
4.290
|
4.830
|
5.360
|
100 |
2.680
|
3.350
|
4.020
|
4.700
|
5.360
|
6.030
|
6.700
|
Section
10. SDR 11, CPVC plastic pipe and fittings.
(1) Installation. Correct assembly shall
consist of the following steps:
(a) Cutting
the pipe square;
(b) Removing
burrs;
(c) Cleaning both pipe end
and fitting socket with a CPVC cleaner in compliance with manufacturer's
recommendations, unless using an approved one (1) step cement.
(d) Applying a liberal coat of CPVC solvent
cement to the pipe and applying a light coat of cement to the fitting socket,
removing all excess cement from the interior which may clog the
waterway;
(e) Assembling
immediately by bottoming the pipe in the socket and rotating one-quarter (1/4)
turn as the joint is assembled.
(f)
Removing excess cement from the joint; and
(g) Determining if the joint has been
properly assembled by looking for a small bead of cement to appear at the
junction between the pipe or tubing and the fitting.
(2) Installation Temperature. Extra care
shall be taken if installing in temperatures below forty (40) degrees
Fahrenheit or above 110 degrees Fahrenheit. The manufacturer's installation
instructions shall be followed carefully.
(3) Hangers and Supports. Support shall be
provided at each floor level for piping installed in vertical runs. For
horizontal runs, support shall be provided at three (3) foot intervals for pipe
one (1) inch or less in diameter and at four (4) foot intervals for larger pipe
sizes. Piping shall not be anchored tightly to a support but secured with
smooth straps or hangers allowing for movement caused by expansion and
contraction. Hangers shall not have rough or sharp edges that come in contact
with the piping.
(4) CPVC-to-metal
Transitions. CPVC threaded adapters shall not be used to transition from CPVC
to metal. Union type fittings that use gaskets or o-rings to seal dissimilar
connections shall not be used. Compression type transition fittings,
over-molded transition fittings and push-type fittings that meet the ASSE 1061
standard may be used.
(5) Thermal
Expansion. The linear thermal expansion rate for CPVC is approximately one-half
(1/2) inch for each ten (10) degrees Fahrenheit temperature change for each 100
feet of pipe or tubing. If installing long runs of pipe, one-sixteenth (1/16)
to three thirty-seconds (3/32) inch longitudinal clearance shall be allowed per
foot of run to accommodate thermal expansion. Offsets of twelve (12) inches or
more every ten (10) feet shall be included on vertical risers if they are
restrained by horizontal branches at each floor.
Section 11. PEX.
(1) PEX that is to be used for cold water
only shall be produced and labeled as established by ASTM F876.
(2) PEX that is to be used for either cold
water or hot water shall be produced and labeled as established by ASTM
F877.
(3) PEX-Al-PEX shall be
produced and labeled as established by ASTM F1281.
(4) Cold expansion fittings with PEX
reinforcing rings for use with PEX tubing shall be produced and labeled as
established by ASTM F1960.
(5)
Metal insert fittings utilizing a copper crimp ring shall be produced and
labeled as established by ASTM F1807.
(6) Stainless steel clamps substituted for
the copper crimp ring shall be produced as established by ASTM F2098.
(7) Plastic insert fittings for PEX shall be
produced as established by ASTM F2159.
(8) Push fit fittings for PEX shall be
produced as established by ASSE 1061.
(9) Metal insert fittings for
PEX/aluminum/PEX composite pressure pipe shall be produced as established by
ASTM F1974.
(10) Metal insert
fittings utilizing a copper crimp ring for PEX-AL-PEX shall be produced as
established by ASTM F2434.
(11)
Installation.
(a) Water service installation.
1. Tubing shall be snaked in the ditch to
allow for linear expansion and contraction.
2. Tubing shall not be installed in
contaminated soils.
3. PEX shall
not be installed in areas of known soil contamination or where there is a high
risk of chemical spills such as organic solvents or petroleum
distillates.
4. Metallic fittings
other than those consisting of red brass shall be protected from the soil to
prevent corrosion.
5. The number of
fittings shall be kept to a minimum.
6. The bottom of the trench shall be flat and
free of rocks, hollows, or other sharp objects.
7. If placed in soil consisting of rock,
piping shall be covered with six (6) inches of coarse sand or pea
gravel
8. If passing through a
foundation wall, a rigid sleeve that spans the distance from within the wall
out to the undisturbed soil shall be used to prevent shearing of the
tubing.
(b) Distribution
system.
1. If PEX is to be buried under a
building, fittings shall not be used.
2. PEX passing through a concrete slab or
wall shall be protected by use of sleeves.
3. PEX passing through metal studs or plates
shall be protected by plastic grommets designed for this purpose.
4. PEX shall not be used in operating
conditions inconsistent with pressure ratings that appear on the tubing and the
applicable ASTM standard.
5. PEX
shall not be installed:
a. Where it may be
exposed to direct or indirect ultraviolet light (sunlight);
b. Where it may be exposed to open
flame;
c. With or exposed to
petroleum based caulking or sealants;
d. Where it may be subjected to prolonged
exposure to free chlorine concentrations greater than four (4) ppm;
e. Within twelve (12) inches of any recessed
light fixture; or
f. Within six (6)
inches of any gas appliance metallic vent.
6. PEX shall be tested under a pressure not
to exceed 100 pounds per square inch nor less than forty (40) pounds per square
inch.
(12)
Hangers and supports.
(a) PEX sizes one (1)
inch and smaller installed horizontally shall be supported at intervals not to
exceed thirty-two (32) inches.
(b)
PEX sizes 1-1/4" and larger installed horizontally shall be supported at
intervals not to exceed forty-eight (48) inches.
(c) PEX installed vertically shall be
supported at the base of each story with a mid-story guide.
(d) PEX shall not be rigidly anchored but
shall be installed to allow room for proper expansion and contraction of the
tubing.
(e) Hangers or strapping
shall be constructed of plastic material or be coated to prevent damage to the
tubing.
(f) PEX-Al-PEX installed
horizontally shall be supported at intervals not to exceed ninety-eight (98)
inches.
(g) PEX-Al-PEX installed
vertically shall be supported at the base of each story with a mid-story
guide.
Section
11. Lead Pipe.
(1) Lead soil,
waste, and vent pipe shall be produced and labeled as Federal Specifications
WW-P-325 and shall not be lighter than the weights established in the following
table:
Size Inside Diameter Inches
|
Commercial Designation "D" or "XL"
|
Wall Thickness Inches
|
Weight Pounds
|
Per Foot Ounces
|
1 1/2
|
D
|
XL
|
0.138
|
3
|
8
|
2
|
D |
XL |
0.142
|
4
|
12
|
3
|
D |
XL |
0.125
|
6
|
0
|
4
|
D |
XL |
0.125
|
8
|
0
|
(2)
Lead bends and lead traps. All lead bends and lead traps shall be of the weight
known as extra heavy (XH) and shall have at least one-eighth (1/8) inch wall
thickness.
(3) Joints.
(a) Joints in lead pipe or between lead pipe
and brass or copper pipes, ferrules, soldering nipples, or trap, shall be
full-wiped joints with an exposed surface of the solder at each side of the
joint of not less than three-quarters (3/4) of an inch.
(b) The minimum thickness of the thickest
part of the joint shall be at least as thick as the material being
used.
(c) If lead pipe is used for
acid waste lines, the pipe may be joined by burning.
(d) The joints between lead to cast iron,
steel, or wrought iron shall be made by means of a caulking ferrule or a
soldering nipple.
Section
12. Unions. Unions shall be ground faced and shall not be
concealed or enclosed.
Section 13.
Integral Flashing and Roof Joints.
(1) If a
roofing system requires integral flashing, a flashing material, which is part
of the manufactured roofing system and required by the roofing manufacturer to
guarantee or warranty the roofing system, shall be used.
(2) The joint at the roof shall be made
watertight by the use of copper, lead, or other approved flashing or flashing
material.
(3)
(a) Except as established in paragraph (b) of
this subsection, the approved flashing shall:
1. Not extend less than six (6) inches from
the pipe in all directions; and
2.
Extend upward twelve (12) or more inches and turn down into the pipe.
(b) Lead flashings for three (3)
inch and four (4) inch vent stacks shall have a minimum twelve (12) inch
base.
(4) A hub flashing
may be used if it is constructed in a manner allowing the flashing to be
caulked into a hub above the roof.
Section 14. Wall or Floor Flange Joints. Wall
or floor flange joints shall be made by using a lead ring or brass flange and
shall be properly soldered.
Section
15. Sheet Lead. Sheet lead for a shower pan shall not weigh less
than four (4) pounds per square foot and shall not weigh less than two and
one-half (2 1/2) pounds per square foot for vent pipe flashings.
Section 16. Sheet Copper or Brass. Sheet
copper or brass shall not be lighter than No. 18 B. & S. gauge, except
local and interior ventilating pipe shall not be lighter than No. 26 B. &
S. gauge.
Section 17. Threaded
Fittings.
(1) A plain screw fitting shall be
either castiron, malleable iron, or brass of standard weight and
dimension.
(2) A drainage fitting
shall be either castiron, malleable iron, or brass, with smooth interior
waterway, with threads tapped out of solid metal.
(3) A castiron fitting used in a water supply
distribution shall be galvanized.
(4) A malleable iron fitting shall be
galvanized.
Section 18.
Caulking Ferrules. A caulking ferrule shall be of red brass and shall be in
accordance with the following table:
Pipe Sizes Inches
|
Inside Diameter Inches
|
Length Inches
|
Minimum Weight Each
|
2
|
2 1/4
|
2 1/2
|
1 lb. 0 oz.
|
3
|
3 1/4
|
4 1/2
|
1 lb. 12 oz.
|
4
|
4 1/4
|
4 1/2
|
2 lb. 8 oz.
|
Section
19. Soldering Nipples. A soldering nipple shall be recessed red
cast brass, iron pipe size. If cast, they shall be full bore and of minimum
weight.
Section 20. Increasers and
reducers. If different size pipes or fittings are to be concealed, the proper
size increaser or reducer pitched at an angle of forty-five (45) degrees
between the two (2) sizes shall be used. This section shall not apply to
nonmetallic installations.
Section
21. Floor Flanges for Water Closets and Service Sinks or Similar
Fixtures.
(1) A floor flange shall either be:
(a) Hard lead;
(b) Brass;
(c) Cast iron;
(d) Galvanized malleable iron;
(e) ABS; or
(f) PVC.
(2) A hard lead or brass flange shall not be
less than one-eighth (1/8) inch thick.
(3) Cast iron or galvanized malleable iron
shall:
(a) Not be less than one-fourth (1/4)
inch thick; and
(b) Have a two (2)
inch caulking depth.
Section 22. Use of Lead.
(1) Lead shall not be used in the
installation or repair of a public or private water system providing potable
water for human consumption.
(2)
This section shall not apply to:
(a) Pipes,
pipe fittings, plumbing fittings, or fixtures, including backflow preventers,
that are used exclusively for nonpotable services such as manufacturing,
industrial processing, irrigation, outdoor watering, or any other uses in which
the water is not anticipated to be used for human consumption; or
(b) Toilets, bidets, urinals, fill valves,
flushometer valves, tub fillers, shower valves, service saddles, or water
distribution main gate valves that are two (2) inches in diameter or
larger.
Section
23. Prohibited Joints and Connections. A fitting or connection
that has an enlargement chamber, or recess with a ledge shoulder, or reduction
of the pipe area in the direction of the flow shall be prohibited.
Section 24. New Materials.
(1) Materials other than those established in
this administrative regulation shall be prohibited unless the material is
specifically approved by the division and the department as being equal to or
better than the material specified in this code.
(2) It shall be the responsibility of any
person or company seeking the approval of a material not included in this code
to prove that the material is equal to or better than the material that it is
intended to replace.
(3) Procedural
requirements for approval of new parts and materials are established in
815 KAR
20:020.
1 Ky.R. 479; eff.
3-12-1975; 2 Ky.R. 495; 3 Ky.R. 313; eff. 9-1-1976; 445; eff. 1-5-1977; 4 Ky.R.
184; 538; eff. 6-7-1978; Recodified from 401 KAR 1:030, 7-5-1978; Am. 5 Ky.R.
160; eff. 10-4-1978; 6 Ky.R. 133; 384; eff. 1-2-1980; 8 Ky.R. 359; eff.
1-6-1982; 14 Ky.R. 1123; eff. 1-4-1988; 15 Ky.R. 601; 970; eff. 9-28-1988; 17
Ky.R. 2882; eff. 5-3-1991; 18 Ky.R. 2720; eff. 4-3-1992; 19 Ky.R. 999; 1385;
eff. 12-8-1992; 27 Ky.R. 1902; 2794; eff. 3-22-2001; TAm eff. 8-9-2007; 35
Ky.R. 2586; 36 Ky.R. 83; eff. 7-29-2009; 41 Ky.R. 169; eff. 9-24-2014; 42 Ky.R.
127; 1193; eff. 11-6-2015; 43 Ky.R. 621; eff. 1-6-2017; 46 Ky.R. 1657, 2424;
eff. 6-2-2020.
STATUTORY AUTHORITY:
KRS
198B.040(10),
318.130