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City and County of San Francisco
Office of Contract Administration
Purchasing
1TSF15000434/CD
Attachment B
SPECIFICATION FOR
EARTHQUAKE RESISTANT DUCTILE IRON PIPE,
FITTINGS & ACCESSORIES
I.
PRODUCTS
A.
Earthquake Resistant Ductile Iron Pipe (ERDIP), Fittings and Accessories
1.
Earthquake Resistant Ductile Iron Pipe (ERDIP) and fittings shall conform to
Japan Water Works Association (JWWA) G 113 and JDPA G 1042, JWWA
G l 14 and JDPA G 1042, and requirements specified herein. Minimum tensile
strength shall be 60,000 psi and minimum elongation shall be 10%.
2.
Joint: Earthquake Resistant (ER) joints of NS type. Pipes and fittings for pipe size
20 in. will be supplied with mechanical type joint. Fittings for pipe size 8 in. will
be supplied with push-on type joint. Assembled NS joint can be deflected to the
maximum allowable angle specified below.
Type
Pipes
Pull-out
Resistance
Expansion and
j Allowable
contraction
On.}
j deflection
{ anqle
20
(500mm)
340,000
(1500 kN)
±2.38 in.
(±80mm)
(200mm)
136.000
(800 kN)
—
Pipe S i z e
pa]
|
20
• {500mm)
340,000
(1,500 kN)
Maximum
deflection
angle
T
00'
-
-
_
Pipes and fittings with spigot ends shall be provided with two socket penetration
lines (two white painted lines) from the manufacturer
Markings: The following cast-on, cold-stamped or painted marks shall appear on
each pipe
a)
b)
c)
d)
e)
f)
The indication of ductile iron and class of wall thickness: "DS"
The year of manufacture (the last two digits)
The manufacturer's identification mark
The nominal diameter (mm)
The joint type: NS
The identification mark of J W W A
For fittings, these marks except for item (1) will appear on the body of each
fitting together with its main characteristics (i.e., angle of bend, pressure rating
of flange, etc.). The indication of ductile iron and ciass of wall thickness "DF*
will appear on each fitting. In case of pipes and fittings with spigot ends for
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City and County of San Francisco
Office of Contract Administration
Purchasing
ITSF 14000XXX7CD
Attachment B
push-on joint, socket penetration lines (two white painted lines) will appear on
the spigot end.
AH ERDIP, valves, fittings and accessories shall be certified as NSF 61
compliant.
5.
Mechanical Properties: The mechanical properties of pipes and fittings shali be as
shown in the foilowing Table
6.
Tolerances on Dimensions: Tolerances on wall thickness and length of pipes will
conform to J W W A G 113 and JDPA G 1042. Tolerances on wall thickness and
length of fittings shall conform to JWWA G 114 and JDPA G 1042.
7.
Coating for ERDIP: 0.78 mil (0.02 mm) of zinc rich primer conforming to JDPA
Z and JIS K 5552 with standard application of 0.49 ounce/sqft (150 g/sqm). 3.14
mil (0.08 mm) of acrylic and/or epoxy synthetic resin paint conforming to J W W A
K 139. Damaged coating shall be repaired per Appendix B of this Section.
8.
Lining for ERDIP: Cement mortar lining in accordance with J W W A A 113.
Cement shall be Portland cement conforming to JIS R 5210. Lining surface shall
be coated with acrylic conforming to J W W A A 113. Inside surface of the socket
shall be free of mortar and coated with synthetic resin conforming to JWWA
K539.
9.
Lining for Fittings: 12 mil (300 microns) Fusion-bonded epoxy coating
conforming to J W W A G 112-2004. Inside surface of the socket shall be coated
with synthetic resin conforming to JWWA K 139.
10.
Factory Hydrostatic Testing:
a)
Each piece at 500 psi minimum for at least 10 seconds.
b)
Fittings: One 45 degree elbow, one tee, one flange to spigot adapter, and
one flange to socket adapter of each size and model at 700 psi minimum
for at least 10 seconds.
c)
Joints: One joint for each joint type for each size used, including flanged
joint, at 700 psi minimum for at least 10 seconds. Restrained joints shail
not be externally blocked in order to test joint separation performance.
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ITSF1400GXXX/CD
Attachment B
City and County of San Francisco
Office of Contract Administration
Purchasing
The joint shall not leak during testing.
Submit videos and/or photos of the testing apparatus and of actual testing in
action for each fitting and joint test on D V D along with signed test certification
letter to the City. The videos and/or photos must capture the pressure readings of
the pressure gauge for each test to show the required minimum test pressure was
reached
11.
Flanges: Flanges will be of integral grooved face (GF) type and drilled
conforming to ASME/ANSI B16.5, Class 300. Groove of flange shall conform to
JWWAG ll4.
12.
Bolts/Studs, Threaded Rods, & Nuts: A S T M A 193 Class 2 Grade B8M (AISI
316) bolts/studs and threaded rods. A S T M A 194 Grade 8M (AISI 316) nuts. Coat
threads with an anti-seize compound to prevent galling. Provide stainless steel
washers meeting tlie dimensional requirements of A S T M F 436.
13.
ERDIP Accessories
a.
Accessories for pipe size 8 in. NS type push-on joint: Rubber gaskets and
lock ring centering rubbers shall be of synthetic rubber (SBR) conforming
to J W W A K 156. Lock rings and ami-deflection rings shall be of ductile
iron and coated with fusion-bonded epoxy. Set-bolts shall be of stainless
steel.
b.
Accessories for pipe size 20 in. NS type mechanical joint: Rubber
gaskets will be of synthetic rubber (SBR) conforming to J W W A K 156.
Glands shall be of ductile iron and coated with synthetic resin. Lock rings
shall be of ductile iron and coated with fusion-bonded epoxy. Tee-head
bolts and hexagon nuts shall be of stainless-steel. Backup rings shall be of
polyamide resin.
c.
Accessories for flanged joint: Rubber gaskets for GF type flange will be
of synthetic rubber (SBR) conforming to JW'WA K 156. Rubber gasket
(type-1) for GF type flange will be used for the joint to vaive, blind
flange and so on. Rubber gasket (type-2) for GF type flange will be used
for the joint to existing pipeline.
d.
Liner: Liners will be of ductile iron and coated with fusion-bonded
epoxy. Bolts for centering of liner ill be of polyamide resin.
e.
Spigot ring for cut pipe: Spigot ring for cut pipe will be composed of
ring and connecting piece. The ring and connecting piece will be of
ductile iron and coated with fusion-bonded epoxy
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City and County of San Francisco
Office of Contract Administration
Purchasing
ITSF 14000XXX/CD
Attachment B
15.
Manufacturer Training and Inspection Services: ERDIP manufacturer shall
provide 3 day installation training for up to 6 people and 10 day field inspection
service during installation.
16.
ERDIP manufacturer: Kubota Corporation, Tokyo, Japan, or approved equal.
Kubota Contact:
Mr. Satoshi, Suenaga (Engineering)
S atosh i. s uenaga @ k uboia. com
+81-80-8542-4223
North America Business Section
Pipe Systems Overseas Dept.
Pipe Systems Division
Kubota Corporation
Address:
1-3, Kyobashi 2-Chome, Chuo-kuERDIP manufacturer
Tokyo 104-8307, Japan
B,
Valves
Manufacturers: G E N E X by Kubota.
Valve shall be resilient seated gate valve with ERDIP fitting joint as shown Table No. 7
conforming to ANSI/AWWA C515.
Table No.7
Nominal Diameter (in)
3 - 12
Joint
mechanical joint
|
[
Valves shall close when turned in the counterclockwise direction and open when turned
in the clockwise direction with suitable and adequate stops, capable of resisting at least
twice normal operating force to prevent overrun of valve or gate in the open or closed
position.
Valve square operating nuts shall be 2 inches of stainless steel and conform to A S T M
A193Gr.B8M
Valve gaskets and seats shall be SBR.
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City and County of San Francisco
Office of Contract Administration
Purchasing
C.
ITSF 14000XXX/CD
Attachment B
Installation Tools
Kubota G X Jointing, Disassembling and Pipe Cutting Tool Kit (for 3-inch to 12") by
Kubota.
D.
Submittals
1.
Submit the following information as specified above:
(a)
(b)
(c)
(d)
II.
Product Data.
Proof of Design Tests: Certified statements that proof-of-design tests
were performed and all requirements were successfully met.
Affidavit of compliance attesting pipe, fittings, valves and accessories
provide in accordance with these Specifications.
Operation & Mamtenance Data and Manuals.
Quality Assurance
Inspection of the pipe, fillings, valves and accessories shall be made by the City and
County of San Francisco or its representative after delivery. The equipment shall be
subject to rejection at any time on account of failure to meet any the specification
requirements, even though submittal may have been accepted previously.
III.
Warranty
If the successful bidder is not the manufacturer, upon request, bidder shall provide a copy
of the manufacturer's written guarantee (on manufacturer's letterhead addressed to the
City) that the manufacturer's warranty and service will be passed on to the City. Failure
to provide this document within seven (7) working days from the date of the written
notification may request in the rejection of the bidder's bid.
IV.
Shipping, Handling and Delivery
(a) All importing, shipping, handling, and delivery costs in addition to all import duties
and charges shall be the responsibility of the bidder. A l l associated cost being passed
on to the City must be shown on the City's sheets on Bid Line 039.
(b) A l l ERDIP, fittings, valves, accessories, and installation tools (equipment) and
installation tools are to be delivered in their original packing and in the original
shipping container.
(c) The manufacturer's suggested equipment storage shall be placed on the outside ofthe
shipping container when delivered to the Purchaser.
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City and County of San Francisco
Office of Contract Administration
Purchasing
ITSF! 4000XXX/CD
Attachment P>
(d) Delivery shall be F.O.B. destination, delivery to University Mound Reservoir located
at 800 Bacon Street, San Francisco. C A 94134. Delivery shall occur between the
hours of 8:00 a.m. and 2:00 p.m, Monday through Friday. Contact Eugene Shu (415)
239-9384 or Doug Lee (415) 920-4017 three days in advance of delivery.
V.
Inspection upon Delivery
Upon delivery ERDIP pipes, vaives, fittings, accessories and installation tools shall be
inspected or tested by the Purchaser, or its representative, for compliance with these
Specifications. Any ERDIP pipe, valve, fittings, accessories and installation tools found
not to comply will not be accepted until deficiencies are corrected by the Vendor at no
cost to Purchaser. Failure by the Purchaser, or its representative, to inspect or witness
tests at the manufacturer's plant shall not be construed as waiving inspection upon
delivery or testing.
VII.
Price
(a) Prices must be shown on the City's Bid sheets, no other bid prices will be considered.
(b) Prices must be inclusive of all costs to the City.
(c) Prices must be exclusive of any sale tax.
(d) If there is a disparity in prices between the unit price and the extended price, the unit
price will prevail.
VIII. Approved Equal
If an alternate is offered as an approved equal, the bidder must submit technical
specifications, cut sheets, and any other materials that will help to determine if their offer
is an acceptable. This information must be submitted with the their bid.
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