SS9301-SP 920918Ultra Rib
8"- 30"
I
The Product
Introduction
Ultra-Rib PVC Gravity Sewer and Storm Drain Pipe
manufactured by Extrusion Technologies, Inc, is a
unique combination of PVC pipe technology and
innovative engineering design. Ultra-Rib brings to the
marketplace a cost effective, high quality sewer and
drain pipe system. Ultra-Rib offers the user a pipe
having a seamless uniform cross-sectional wall, radial
ribs which are perpendicular to the axis of the
a smooth interior for excellent flow charact~"'
Plumbing Codes
ETI Ultra-Rib conforms with the
Southern Building Code Congress
International's Standard Plumbing Code ®
and the CABO One and Two Family
Dwelling Code according to SBCCI Compliance Report
39.
,s of this report may be obtained from your ETI
'atives.
Ultra-Rib's design enables it to resist · gal Properties
imPa~t loads, normally associ~'- ~ . ~'~. fa-Rib has a minimum uniform pipe
p,pe ,nstallat,on. The o,,t~' A ~ '~ ~ "~'~"J ~'' ~ of 60 psi giving it 30% greater stiffness
corros,on res,stance .,~-~1~ ~ ~~'~. ~ '~' ' ~ '~DR 35 sewer pipe. This extra stiffness
bell and rubber gaske ~(' ~",,l' ~ ~,¢-~ ~ 'ed edge on deflection control. Ultra-
for sanitary sewer syst~ ~ ~t,~~' ~ ,:... ~----.~\ ~ from 21" through 30". provides a
applications... . --~ ,.~¢'~,~t. ¢~ _. ~ ~ .~'1~""-~'~ 'ness of 46 psi; the Same as SDR 35.
ETI Ultra-R,b ,s ava,lab ~"~il. ' , (x-.~--~b~ ~ ~'"'~' 'b design is capable of withstanding
18", 21", 24", 27" and 30". ~V ~_. ~,,~ '. ~',¢~.i..,~ .ading of 210 ft-lbs for 8" and 220
Proven in worldwide app ?~ "~,.-~1ti~'~'-" I¢'~i,~,,"~~'' ,hen tested in accordance with
optimized profile PVC pipe c
with economy and excellent fl ~.~¢'¢'~i .... ., ,~,~ N.~ .~ ~ ,~
Standards [,_ ,
~" .,[ -~;* ' ~all of Ultra-~iD provides
ETI Ultra R~b PVC sewer and s r-
- ' f-;~ ~. , ~;\ - ..,cs and resists the build-up of solids
manufactured to meet or exceed t, ~, ~(.i'~ \ ' .~,~gth of Ultra-Rib pipe (13 feet) and the
the following: k~. ~,;ed number of required joints yield a Manning flow
ASTM F794 Standard Specificatio
Chloride (PVC) Ribbed Gravity Sewer
Based on Controlled Inside Diameter
Uni-Bell UNI-B-9 Recommended Sta
Performance Specification for Polyvinyl Chloride (PVC)
Large Diameter Gravity Sewer Pipe and Fittings Based
on Controlled Inside Diameter
AASHTO M304M 911 Interim Specification for Poly
coefficient of n = .009 under full flow conditions - the
lowest resistance of any sanitary drain pipe.
Chemical & Abrasion Resistance
The chemical resistance of PVC pipe is legendary.
Ac~' ~lies, and normally diluted and buffered
qs have no effect on the pipe and its
'ressive soil conditions due to sulphates,
(Vinyl Chloride) PVC Profile Wall Drain Pipe & Fittings
~^._, ,--,~ ,-.~+.~,,~.~ ,~.~ ~,.. ....... ~sea water are tolerated easily by Ultra-
..... --'~ -~ '-- stnal effluents and ac~d rain
12"-30" Ultra-PalP mee[s or exceeds see" .,ra.,,1~;~ ...'~ ¢ '
,-' ~. ~.'~,,~--~ ~ been subjected to abrasion tests by
properties in AASHTO Standard Spe ,¢ ~, ~i2k--,,,~r- '~.~'~ ,~ \ .........
.... q · ~ ~¢ '. .~ n[ laoora[orles /nese [es~s prove
~ gnway uriages uection 18 ~' ~,,, tt:lii~"&"~~- ~.:~'?'~, .~.,,.~t~.e,' .... '. ,.
· _ ' ' ' ~.~.. ,,,,~' ~ \\~/,,~- s,s~ abrasion ~etter tnan concrete
Interact,on ~ystem · j~, ,~..,,~,, ,~ ~"~,6~'~' ~ ~ abrasive flows are encountered,
'~ ~ If'l,"~' '¢ ~ \ ~ .,~__ lonal resistance to wear.
'~:'~' ~,, ~'~'~, ~~~~ 'es that Ultra-Rib will have a
,~,. \~'"~ ~'- ' ~' ~t' inttenance'Y°urETI
'~b \'~1 't'~'J~ .o give specific
~\ ~ ~fN~ ' 'g Ultra-Rib's chemical and
The Product
Introduction
Ultra-Rib PVC Gravity Sewer and Storm Drain Pipe
manufactured by Extrusion Technologies, Inc, is a
unique combination of PVC pipe technology and
innovative engineering design. Ultra-Rib brings to the
marketplace a cost effective, high quality sewer and
drain pipe system. Ultra Rib offers the user a pipe
having a seamless uniform cross-sectional wall, radial
ribs which are perpendicular to the axis of the pipe and
a smooth interior for excellent flow characteristics.
Ultra-Rib's design enables it to resist earth loads and
impact loads normally associated with sewer and drain
pipe installation. The outstanding chemical and
corrosion resistance of Ultra-Rib, along with an integral
bell and rubber gasket joint make it an excellent choice
for sanitary sewer systems and other drainage
applications.
ETI Ultra Rib is available in sizes 8", 10", 12", 15",
18", 21", 24", 27" and 30".
Proven in worldwide applications, Ultra-Rib is the
optimized profile PVC pipe design, offering strength
with economy and excellent flow rates.
Standards
ETI Ultra-Rib PVC sewer and storm drain pipe is
manufactured to meet or exceed the requirements of
the following:
ASTM F794 Standard Specification for Polyvinyl
Chloride (PVC) Ribbed Gravity Sewer Pipe and Fittings
Based on Controlled Inside Diameter
Uni-Bell UNI-B-9 Recommended Standard
Performance Specification for Polyvinyl Chloride (PVC)
Large Diameter Gravity Sewer Pipe and Fittings Based
on Controlled Inside Diameter
AASHTO M304M 911 Interim Specification for Poly
(Vinyl Chloride) PVC Profile Wall Drain Pipe & Fittings
Based On Controlled Inside Diameter
12"-30" Ultra-Rib meets or exceeds section
properties in AASHTO Standard Specification for
Highway Bridges, Section 18, Soil Thermoplastic Pipe
Interaction System
Plumbing Codes
ETI Ultra-Rib conforms with the
Southern Building Code Congress
International's Standard Plumbing Code
and the CABO One and Two Family
Dwelling Code according to SBCCI Compliance Report
No. 9209.
Copies of this report may be obtained from your ETI
representatives.
Mechanical Properties
8" 18" Ultra-Rib has a minimum uniform pipe
stiffness (F/y) of 60 psi giving it 30% greater stiffness
than standard SDR 35 sewer pipe. This extra stiffness
provides an added edge on deflection control. Ultra-
Rib, in diameters from 21" through 30", provides a
minimum pipe stiffness of 46 psi; the same as SDR 35.
Its tough, durable rib design is capable of withstanding
a minimum impact loading of 210 ft-lbs for 8" and 220
ft-lbs for 12" thru 30" when tested in accordance with
ASTMD2444.
Hydraulics
The smooth interior wall of Ultra-Rib provides
excellent flow rates and resists the build-up of solids.
The long length of Ultra Rib pipe (13 feet) and the
reduced number of required joints yield a Manning flow
coefficient of n = .009 under full flow conditions - the
lowest resistance of any sanitary drain pipe.
Chemical & Abrasion Resistance
The chemical resistance of PVC pipe is legendary.
Acids, alkalies, and normally diluted and buffered
hydrocarbons have no effect on the pipe and its
gaskets. Aggressive soil conditions due to sulphates,
carbonates or sea water are tolerated easily by Ultra-
Rib, as are industrial effluents and acid rain.
PVC pipe has been subjected to abrasion tests by
several independent laboratories. These tests prove
that PVC pipe will resist abrasion better than concrete
and steel pipe. Where abrasive flows are encountered,
PVC pipe offers exceptional resistance to wear.
PVC's durability ensures that Ultra-Rib will have a
long life requiring little maintenance. Your ETI
representative will be glad to give specific
recommendations concerning Ultra-Rib's chemical and
abrasion resistance.
J. C. Utility Sales Inc.
Representing the Manufacturer- Professionally
FRED J. VALENTA
(214) 340-7866
FAX(214) 34~7105
September 18, 1992
9656 Liptonshire
Dallas, Texas 75238
Mr. Wayne Ginn P.E.
Ginn and Case Inc.
17103 Preston Road #205
Dallas, Texas 75248
Dear Mr.~Ginn,
ULTRA-RIB F794 meets or exceeds all of the requirements outlined
in your specification section 02622-1 City of Coppell project
with the exception of the description that gasket be bonded
to the bell (our gasket is locked between non-spiral ribs on
the spigot end) and the note that the resin class must be 12364-
A. ULTRA-RIB standard resin is 12454-B (a low fill resin same
as used in water pipe and also proposed in the initial design
criteria draft of the Texas Water Commission April 1992.) We
do not know of any manufacturer producing PVC sewer pipe to
12364-A. Carlon Vylon pipe is generally produced to 12364C
which is a higher filled product and can be more brittle
particularly in cold weather. As evidenced by an excerpt of
the ASTM specification on resins, the "C" product does not have
the properties of the "B" product. Our resin may meet or be
near the "A" classification but tests to verify the "A" are
expensive and sustained flows of over 80% H2SO4 are not in sewer
systems.
We were surprised to hear that our pipe might not be allowed
on the project and would appreciate an opportunity to answer
any objections. We feel that ULTRA-RIB pipe would allow the
City of Coppell an alternative to the CARLON Vylon pipe
apparently allowed but mainly we feel that ULTRA-RIB would give
the city a superior product based on proven service in nearby
communities and sewerage entities.
We offer the following comparison between ULTRA-RIB and Vylon
ULTRA-RIB is a seamless, solid cross sectional pipe that does
not need to be grouted when cut or tapped. Vylon is made by
heat fusing spiral strips of PVC which results in a hollow cross
section that has to be sealed.
Being formed in a rotating external mold resulting in a
constant outside dimension, ULTRA-RIB can be cut anywhere along
its length and the gasket inserted between the ribs without
any bevelling needed. Repairs can be made using PVC repair
collars, rubber boots or stainless steel sleeves. Taps are
also easily made using standard SDR 35 saddles.
Being solid, ASTM F794 does not require ULTRA-RIB to be air
tested at the factory. Due to the seam Vylon needs to be air
tested at the plant but this test is questionable since it is
not made with external stresses applied present in actual
installations.
ULTRA-RIB has over 120 successful installations in the North
Texas area and we are allowed on all projects 18" and larger
in the Cities of Dallas, Fort Worth, Plano, Arlington, Irving,
Carrollton, Farmers Branch, Denton, Keller, Trinity River
Authority and North Texas Water District. Following are footages
installed thus far in these entities:
Trinity River Authority 4 Jobs 46,500 ft 15" - 24"
City of Dallas 6 Jobs 12,500 ft 15" - 24"
City of Fort Worth 5 Jobs 11,900 ft 12" - 24"
City of Irving 12 Jobs 34,500 ft 8" - 24"
City of Arlington 9 Jobs 13,800 ft 8" - 30"
City of Plano 4 Jobs 10,900 ft 8" - 24"
City of Carrollton 6 Jobs 9600 ft 8" - 21"
North Texas Water District 6600 ft 21"
City of Keller 9 Jobs 32,700 ft 8" - 21"
We feel confident that a check of our references will be
positive. We would be very appreciative of being allowed to
bid on your project. Thank you for your consideration of this
request.
Sales Agent for Extrusion Technologies Inc.
cc- Mr. Ken Griffin City of. Coppell ~'/ Mr. Steve Goram City of Coppell
Mr. Howard Pafford City of Coppell
lectfical
:ent and
a Hori-
ics2
Plastics
Llnrein-
~ulating
Acro-
ysis) of
1784
TABLE I Class Requirements for Rigid Poly(Vinyl Chloride) Compounds
NOTE--The minimum property value will determine the cell number although the maximum expected value may fall within a higher ceil
Oesig-
nation
Order
No.
1
Property and Unit
Base resin
Impact strength (Izod)
m Jrt:
J/m of notch
ff. lb/in, of notch
Tensile strength, rain:
MPa
Modulus of elasticity in'
tension, min:
MPa
psi
Deflection temperature
under load, min,
1.82 MPa (264 psi):
°C
·F
Flammability
~0 1
unspecified poly(vinyl
chloride)
polymer
unspecified <34.7
<0.65
unspecified <34.5
<5 000
unspecified <1930
<280 000
unspecified <55
<131
2
chlorinated
poly(vinyl
ch~or~e)
34.7 80.1
0.65 1.5
34.5 41.4
5 000 6 000
1930 2206
280 000 320 000
55 60
131 140
A A
Cell Umits
3 4
vinH copolymer
266,9
5,0
48.3
7 000
2482
360 000
70
158
'~ All con )ounds covered by this specification when tested in accordance with Method D 635 shall
average time of burning of <t 0 s.
533.8
10.0
55.2
8 000
2758
400 000
5 6
800.7
15.0
3034
440 000
90
194
A
'ield the followinge extent of burning of <25 mm;~.
NOTE 2--The manner in which selected materials are identified by
this classification system is illustrated by a Class 12454-B rigid PVC
compound having the following requirements (see Tables I and 2):
Identification: I 2 4 5 4 B
Poly(vinyl chloride) homopolyme~
Property and Minimum Value:
Impact strength (Izod) (34.7 J/m (0.65
fi-lbf/in.)~
Tensile stength (48.3 MPa (7000 psi)L
Modulus of elasticity in tension (2758 MPa
(400 6O0 psi)~
Deflection temperature under load (70'C
(158'F))
- Chemical resistance (meets thc requirements
ofSuffix B in Table 2)'
NOTE 3--Thc cell-type format provides thc means for identification
and close characterization and specification of material properties, alone
or in combination, for a broad range of materials. This type format,
however, is subject to possible misapplication since unobtainable prop-
erty combinations can be selected if the user is not familiar with com-
mercially available materials. The manufacturer should be consulted.
4.3 Type and grade number designations have been
widely used to define the minimum physical properties and
chemical resistance requirements of certain commercial
classes of rigid PVC compounds. Table X I.1 in the Ap-
pendix lists these type and grade numbers and the corre-
sponding class numbers selected from Table 1 and 2. Thc
classes for previous types and grades of poly(vinyl chloride
vinyl acetate) compounds are listed in Table X2.1 in the
Appendix.
5 Ordering Information
5. l The purchase order, or inquirY for these materials,
shall state the specification number and identify the class
.selected, for example, D 1784, Class 12454-B.
5.2 Further definition, as may be required for thc fol-
lowing, shall be on thc basis of agreement between thc
purchaser and the Seller.
5.2.1 Physical form and particle size (see 6.1).
5.2.2 Contamination level (see 6.2),
5.2.3 Color (see 6.3),
5.2.4 Other supplementarY definition if necessary, and
5.2.5 Inspection (see 12. I).
6. Materials and Manufacture
6.1 Materials supplied under this specification shall be
PVC compounds in the form &cubes, granules, free-flowing
powder blends, or compacted powder blends.
6.2 Materials shall be of uniform composition and size
and shall be free of foreign matter to such level of contami-
nation as may be agreed between the purchaser and the
seller.
6.3 Color and transparency or opacity of molded or
TABLE uffix Designation for Chemica! Resistance
'"'---....~_ - ~----"~' Solution A B C D
H2SO4 (93 %~'14 days immersion at 55 :t: 2°C:
Change in weight:
Increase, max, ~ 1.0'~ 5.0.4 25.0 NAs
Decrease, max, % 0.1'~ 0.1'~ 0.1 NA
Change in flexural yield strength:
Increase, max, % 5-0'~ 5.0'~ 5.0 NA
Decrease, max, ~ 5.0A 25.0'~ 50.0 NA
HaSO4 (80 %m30 days immersion at 60 + 2°C:
Change in weight:
Increase, max, ?, NA NA 5.0 15.0
Dec, ease, max, % NA NA 5.0 0.1
Change in flexural yield strength:
Increase, max, % NA NA 15.0 25.0
Decrease, max, ~; NA NA 15.0 25.0
ASTM Oil No. 3m30 days immersion at 23°C:
Change in weight:
Increase, max, % 0.5 1.0 1.0 10.0
Decrease, max, ~ 0.5 1.0 1.0 0.1
a Specimens washed in running water and dded by an air blast or other
mechanical means shall show no sweating within 2 h after removal from the acid
e NA =, not applicable.
67
Design criteria for Sewerage Systems
(2)
Page 3'
years. Strict attention shall be given to minimizing
infiltration and inflow into the system.
Pipe Selection. In selecting pipe for sewers,
consideration shall be given to the chemical
characteristics of the water delivered by public and
private water suppliers, the character of industrial
wastes, the possibilities of septicity, the exclusion
of infiltration, the external forces and internal
pressures, abrasion, corrosion resistance, etc. With
due consideration being given to the above, if the
pipe as a whole or an integral component of the pipe
is subject to a pH range of 1.0 to 7.0, a Commission
approved liner shall be installed prior to field
testing. The sewer pipe to be used shall be
identified in the technical specifications with
appropriate ASTM, ANSI or AWWA specification numbers
for both quality control (dimensions, tolerances,
etc.) and installation (bedding, backfill, etc.) and
shall be from the following list: ASTM D-3034, ASTM P-
679, ASTM F-794, ASTM F-949, AWWA C-900, ASTM D-3262,
ASTM C-700, ASTM A-746, AWWA C-150, AWWA C-151, ASTM
C-76. PVC pipe shall be made in accordance with cell
classification 12454-B as per ASTM D-1784. Glass-
Fiber-Reinforced Thermosetting-Resin sewer pipe shall
be made in accordance with cell classification ASTM D-
3262-1-2-3 and shall have a pipe stiffness equal to or
Joint Performance
An infiltration rate of Bess than 50 U.S. gal./inch
dia./mile/day can be assured using the Ultra-Rib
patented joint design. Catch-basin cave ins are
eliminated because the Ultra Rib joint will not permit
infiltration of fine bedding materials. The manhole
adapters supplied with Ultra-Rib are equally tight.
Field Cutting and Joining
Because the ribs are perpendicular to the axis of the
pipe, the pipe can be cut between any rib. The rubber
gasket can then be placed between the second and
third ribs and the pipe joined together to form a water-
tight seal. Gasket material shall meet the requirements
of ASTM F477 "Specification for Elastomeric Seals
(Gaskets) for Joining Plastic Pipe."
Before assembly, clean and lubricate belt I.D. to third rib
Dimensions
The standard lay length
is 13 feet
Avg. Approximate
Pipe Avg. O.D. Nominal WtJFt. Approximate
size I.D. Barrel Thickness (t) (Lbs/ft) Bell O.D.
8 7.89 8.80 .105 2.48 9.76
10 9.86 11.00 .105 3.50 12.22
12 11.74 13.10 .105 5.05 14.60
15 14.37 16.07 .118 7.85 17.84
18 17.65 19.76 .150 11.50 21.95
21 20.75 22.99 .177 14.50 25.50
24 23.50 25.97 .197 21.19 28.50
27 / 26.50 29.45 .217 28.00* 32.50
30 ~ 29.50 32.70 .244 35.50 36.00
/
! I / / i'~ / ! t # ~ / / / / ~ ~ /.tJ_./__:~ ~ I I / I ~
Fittings
Tapping Saddles
While in-line fittings for lateral connections are
available, future connections may also be made using
the same tee or wye tapping saddle as currently used
with SDR35. The ribs act as a locking guide for the
stainless steel strap which prevents slipping of the
saddle. A saddle gasket, available from ETI, is all
that is required to make your SDR35 saddle work with
Ultra-Rib.
Another alternative to the tapping saddle is the
Inserta Tee'. This product may be specified for either
new construction or future connections.
In-Line Fittings
A complete line of fittings is available with Ultra-Rib
sealing dimensions - no adapters are required. If the
customer chooses to use the standard in-line fittings
used with ASTM D3034 SDR35 PVC sewer pipe,
adapters to Ultra-Rib are available.
Use ASTM D3034 SDR35 PVC Sewer Pipe in 4" or 6"
sizes for service laterals.
Repair Couplings
Sleeve couplings are available for repairs. The
sleeve coupling is manufactured to fit the Ultra-Rib
outside dimensions and is constructed as a straight
sleeve with no stop shoulder. This style coupling will
facilitate most repair circumstances.
Socket Couplings
In the event two spigots need to be joined, socket
couplings are available. These couplings are very
similar to the sleeve couplings except that they employ
a stop shoulder at the center of the coupling.
Typical $DR35 tapping saddle
Fowler
Inserta Tee
Fowler Inserta Tee~''' connected to Ultra-Rib
Manhole Connections
For rubber boot connections a wide "flip top" gasket is positioned under the boot to ensure a t~ght seal.
,¸0
Where manholes are manu-
factured with A-LOKs, use an
Ultra-Rib Bell by SDR35 (D3034)
spigot adapter (A-LOK to be sized
for SDR35, D3034, or F679)
,/
x.
Manhole walr
Grout
The Ultra-Rib Bell by SDR35 Spigot may also be used for
boot connections.
For cast in-place concrete bottoms, precast bottoms
with "mouse hole" or similar pipe-to-manhole entry that does
not incorporate a flexible connection, use an Ultra-Rib
gasket, positioned on the pipe in the center of the manhole
wall (or concrete headwall or other structures for storm-
drain rout or seal the ion as required.
Installation
Preparation
Ultra-Rib is a flexible conduit. The embedment
should be designed to limit deflection to 7.5%. The
long term deflection chart on the adjacent page may
be used to easily determine acceptable burial
conditions. Additional design information may be
obtained from the Uni-Bell Handbook of PVC Pipe
Design and Construction.
Ultra-Rib should be installed using the same good
construction practices as those currently used for
SDR35. Additional installation information may be
obtained from Uni-B-5, "Recommended Practice for the
Installation of PVC Sewer Pipe", or ASTM D2321,
"Recommended Practice for Underground Installation
of Flexible Thermoplastic Sewer Pipe."
Foundation
Foundation preparation is only required when the
trench bottom is unstable. Any foundation that will
support a rigid pipe without causing loss of grade or
flexural breaking of pipe will be more than adequate for
Ultra-Rib.
Bedding
The bedding directly underneath the pipe is required
only to bring the trench bottom up to grade and
provide uniform longitudinal support for the pipe. It
should not be so thick or soft that the pipe will settle
and lose grade. A layer of material from 4" to 6" thick is
typically placed to establish line, grade and support.
Bell holes should be excavated to insure uniform
bearing.
Haunching
The haunching area is the most important in terms of
limiting the deflection of a flexible pipe. This is the area
that should be compacted to the proctor densities
shown in the long term deflection chart on the adjacent
page. Material which may be adequately placed and
compacted to required levels for the specific applica-
tion is suitable. It is important that no voids exist in this
area. Good placement and compaction of the
haunching is the key to deflection control.
Initial Backfill
The initial backfill protects the pipe from the final
backfill placement and compaction. It begins at
app spnng
Haunching
IFoundation
(may not be
required)
Trench Cross-Section Showing Terminology
Final Backfill
The materials used and densities required in this
area should be based on the structure which lies above
the pipe. This area provides no additional support to
the pipe Where the line runs through a backyard or
open field, native material dumped or lightly
compacted may be sufficient. Under a road surface a
material which can be highly compacted is required
and the initial backfill should be compacted as well.
Compactive Effort
The compactive effort will be reduced if moisture
content is controlled to optimum levels. Never contact
the pipe with compactors. At all points in the pipe zone
adequate compaction of approved materials can be
achieved using portable vibrators. For applications
where minimum cover conditions exist (a minimum
cover of one foot can be recommended for loads up to
and including H20) Class I materials are needed to
reduce compactive effort required over the pipe to
achieve a high level of compaction (typically 95% Std.
Proctor under a road surface). Heavier equipment,
such as Hydro Hammers, should be used only when
needed to achieve required densities, and not less
than 3' above the pipe.
Long Term Deflection of PVC
The chart below was developed to show acceptable
burial conditions for Ultra-Rib pipe. The areas shaded
green will result in long term deflections of less than
7.5%. Because Ultra-Rib will not fail at deflections less
than 30%. an allowable deflection limit of 7.5%
provides a safety factor of 4 and can be conservatively
recommended.
The chart eliminates the need to calculate
deflections and gives the design engineer a ready
reference. For example, an application which calls for
depths of cover of 14 feet or less, with native Class IV
materials can be designed by checking the chart. For
14 feet of cover we note that the square across from
Class IV material compacted to 65% is gray and
therefore not recommended. However, for Class IV
material compacted to 75% or better the square is
green under the 14 foot cover column. Therefore, the
native soil may be used for haunching as long as it is
compacted to 75% or greater.
The chart does not take into account live loads.
When live loads are not a factor, the chart can be used
directly to determine whether long-term deflection of
the Ultra-Rib is below 7.5%. When live loads must be
considered, determine first, the combined total external
load on the pipe. Next, determine the equivalent prism
load (without live load) for the particular pipe size
involved. Determine the height of cover (ft.) for the
equivalent prism load. Using this height of cover with
the bedding class and proctor density, enter the
maximum long-term deflection chart, to determine the
burial conditions which are acceptable. In working with
these charts, it becomes apparent that:
1. Soil density in the pipe zone plays a greater role than
soil type in the control of deflection in buried flexible
conduits.
2. The amount of deflection is independent of p~pe s~ze.
Note pipe size does not appear in the chart for
maximum long-term deflections.
For minimum depths of cover as shallow as 1 foot,
additional information should be obtained from your
ETI representative.
Ultra-RibTM
Maximum Long-Term Deflection Chart
Minimum F/ y = 46 psi
ASTM
Bedding
Classification
Density
(Proctor)
AASHTO
T-99
Gravel
Class I
Class II 90%
80%
Sand Class III
9O%
85%
75%
65%
Clay Class IV
85%
75%
65%
Peat Class V
Height of cover (feet)
This soil class not recommended.
Note: Deflection values shown do not
include effect of live load or longitudinal
Pending.
1. No length of pipe installed under
conditions specified will deflect more
. than is indicated if the specified density
is obtained.
2. External loading based upon soil weight
of 120 lbs. per cubic foot.
Deflections predicted are based upon
pipe which was initially circular prior
to installation. Actual deflections may
differ because of initial out of roundness
caused by storage and/or handling.
These variations should be taken into
account when measured deflections are
compared with those in the table.
4. Bedding classifications are as indicated
in ASTM D2321.
5. Deflections listed in table are maximum
long-term values.
6. Initial deflection is deflection taken
within the 1st 24 hours after trench is
backfilled.
Hydraulics
Flow chart for p,pe
flowing full n - 0.009
42
39
36--
33
30--
27
24
21
18
.01
.1 .2
.3 .4 .5 .6 .7 .8 .91.0 2.0 3.0 4.0 5.0 6.0 7.08.0
15
12
10
8
.01
SLOPE IN FEET PER 1000 FEET OF LENGTH
Conversion chart Table 1
Slope values
Slope values dorived from this chart are
for coefficient of flow n - 0.009. Thoy
may be converted 1o slopos for ortner
coefficients of flow by means of the
following multiplying factors:
0.79 lorn-0008 1.77 lorn-0012
100 for n-0.009 2 086 for n-O013
123 forn-0Ol0 242 for n-0.014
1.494 for n-0 011 2.778 for n-0 015
Conversion chart Table 2
Diameters
Diameters derived from this chart are
for coefficient of flow n - 0.009. These
may be converted to diameters for
other coefficients of flow by means of
the following multiplying factors:
0.986 lorn-0008 1114 forn-O.Ol?
1000 lorn=0.009 1.147 lorn-0.013
1.040 lorn-0.010 1.180 lorn-0.014
1.078 forn-0011 1.211 lorn=0.015
Conversion factors
CFS, MGD, GPM
To convert cubic feet per second (cfs)
to million gallons per day (mgd),
multiply cfs by 0646. fo convert cubic
feet per second (cfs) to gallons per
r'runuto, multiply cfs by 44883.
One cubic foot of water = 748 gallons
.1 .2
Example
Assume:
Flow coefficienl n - 0009
I ongth - 2800 ft
Pipe s~ze - 8 inches
Elevations Upstream-215'0"
Downstream - 213'0'
Required:
1 ) Flow rato when flowing full
2) Velocity
Difference in olovation divided by
Iongth of pipe line equals slope in ft./rt.
Multiplying by 1000 - slope 0.7 fl./1000
ft. Enter graph at 0.7 slope and also at
8 inch diameter pipe At intersection,
lines for velocity and flow rate also
intersect. These give flow rate of 0.5 cu.
ft. per second and velocity of 1.3 feet
per second.
· 3 .4 .5 .6 .7 .8 .9 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0
Flow Comparison
To get flow equal to Ultra Rib, what s~ze competitive p~pe is required?
'Based ora Marming Equation. flow co-efficients as noted, a slope of 0.5% or 5.0 feet per 1,000 feet.)
Ultra-Rib
(n = .009)
Reinforced Concrete
Corrugated Metal
(n = .013) (n = .021 )
Avg. Diameter Closest Pipe Diameter
Dia. I.D. Flow Needed for Size Needed for
(In.) (In.) (CFS) Same Flow (In.) Available (In.) Same Flow (In.)
Closest Pipe
Size
Available (In.)
18 17.65 5.09 20.26 21 24.25
21 20.75 7.84 23.81 24 28.51
24 23,50 10,92 26.97 27 32.30
27 26.50 15.05 30,42 33 36.41
30 29,50 20,03 33.86 36 40,53
27
3O
33
42
42
(Above chart based on pipe flowing half full)
Quality Control and Testing Procedures
Pipe Stiffness (ASTM D2412)
Test roqu~roments call lot rneasuror~-~onts of
rT~lrfimurn pipe stiffnoss at ,5% Tho minimum pipe
stiffness (F/ y) at 5% defleclion stnall be 60 psi for s~zes
8,' 18" and 46 psi for sizes 21" 30' when tested ii/
accordance with ASTM D2412 "External Loading
Ct~aracteqstics of Plastic Pipe by Parallel Plato
Loading"
Flattening
(ASTM D794)
Flatlor~ p~F)c
until ID is
reducod b~/60~
o/original
dimormions
No ovidonce
of splitting,
cracking or broaking shall bo seen
Impact
Resistance
(ASTM D2444)
A sampling of q,po
specimens are
periodically taken lrom
fho production lino and
are tested /or impact
reslslance by ASTM Test
Metlnod D2444 A twenty
oound weight is dropped
from
,act
Extrusion Quality (ASTM D2152)
Tost distingulshos between un~usod and proporl?
fused PVC.
Ultra-Rib Joint Performance
(ASTM D3212)
The integrity of the gasket ano raceway (timor~sion ~s
tested [~ndor an internal vacuum of 22 inches mercury.
equiwxlont to 25 leol of wa;er he. ad pressure for ovor
10 minutes te assure that infiltra',ion will not ocotJr under
a water lable
/
/
/
Short Form Specification
Ultra-Rib PVC Gravity Sewer Pipe
Sizes 8" - 30"
The following guide specification may be used to
specify Ultra Rib PVQ pipe for gravity sanitary sower
and storm drain applications:
Guide Specification for Ribbed PVC pipe
All ribbed pipe shall be seamless open profile and
meet the requirements of ASTM F794 and Uni-Bell Uni
B 9 Pipe shall have a smooth interior with a solid
cross sectional rib exterior. Exterior ribs shall be
perpendicular to the axis of the pipe to allow placement
of lhe sealing gasket without additional cutting or
machining. The pipe stiffness shall be a minimum of 46
psi when tesled al 5% deflection in accordance with
D2412. Pipe shall be green in color
By placing the above paragraph in your standard
specification, you specify Ultra-Rib and all of ~ts
supenor features and benefits It is made of the finest
PVC materials, meeting a cell classification of 12454B.
12454C or 13364B as defined in ASTM D1784
Applicable ASTM Specifications
D615 Practice for Conducting Plastics and Electrical
Insulating Matenals for Testing
D885 Definition of Terms Relating to Plastics
D1784 Specification for Rigid Poly (Vinyl Chloride) (PVC)
Compounds and Chlorinated Poly (Vinyl Chloride)
(CPVC) compounds
Method of Deterr'nining Dimonsions of
Thermoplastic Pipe and Fittings
Test Method for Degree of Fusion of Extruded Poly
(Vinyl Chloride) (PVC) Pipe and Molded Fittings by
Acetone Immersion
Practice for Underground Installation of
Thermoplastic Pipe for Sewers and Other Gravity
Flow Applications
Test Method Ior External Loading Characteristics
of Plastic Pipe by Parallel Plate Loading
7est Method for Impact Resistance of
Thermoplastic Pipe and Fittings by Means of a
Tup (Falling Weight)
Practice for Making Solvent Cemented Joints
with Poly (Vinyl Chloride (PVC) Pipe and Fittings
Specification for Joints for Drain and Sewer Piast~c
Pipes Using Flexible Elastomeric Seals
Practice for Safe Handling of Solvent Cernents and
Primers Used for Joining Thermoplastic Pipe and
Fittings
Definitions of Terms Relating to Plastic Pipe
Systems
Specification for Elastorneric Seals (Gaskets) for
Joining Plastic Pipe
Standard Specification for Poly(Vinyl Chloride)
(PVC) Profile Gravity Sewer P~pe and Fittings
Based on Controlled Inside Diameter
D2122
D2152
D2321
D2412
D2444
D2855
D3212
F402
F412
F477
F794
// /
/
"
,'
Ultra-Rib"
Warranty
All products sold are subject to the following warranty:
Exlrusion Technologies, Inc, (ETI) warrants for a period el
one year from date of delivery to tho onginal purchaser
that the Product is free from defects ~n materials and
workmanship ETI makes no other warranty of any kind,
express or implied, in [act or in law. including without
limitation, the warranty of merchantability or the warranty
of fitness for a partioular purpose, other than the limited
warranty set forth above. Every claim under tNs warranty
shall be deemed waived unless in writing and received
by ETI within thirty (30) days of the date the defect to
wNch each claim relates is discovered or should have
been discovered.
Limitation of Liability
It ~s expressly understood and agreed that tho limit of
ETI's liability shall be at ETI's sole option, repair or
resupply of a like quantity et nondefoctivc Preduct and
thai ETI shall lnave no such liability except wtne,-e tile
damage results solely from breach of ETI s warranty. It is
als() agr{}od tlnat ETI slnall not be liable for any incidental.
consequential, or ortner damages for any adegec
negligence, breach of warranty strict liabilky, o~ any other
theory, other than [he limited liability set [ortln above Tl~e
physical (or chemical) properties of ETIs pipe products
represent typical average values obtained ~n accordance
wittn accepted test methods arid are subject to normal
manufacturing variations. They are supplied as a technical
service and are subject to changes without not,ce
Corporate Offices:
1600 Stout Street
Suite 1710
Denver, CO 80202
(303) 893-1101
Telefax 303 893 4140
Customer Service Centers:
West Virginia - 1-800-624-311
Telefax 304 472 0742
Missouri 1 800 341 0053
Teiefax 314 474 1760
Plant Locations
P O Box 709
Buckhannon, WV 26201
6500 N. Brown Station Rd.
Columbia, MO 65202
105 East Avonuo M
Conroe, TX 77301
uponor