[CC 1984 §25.010; Ord. No. 293 §1, 8-8-1966]
The ASA Z21.30-1964 (or subsequently revised editions) Standard
Code for the Installation of Gas Appliances and Gas Piping shall be
considered as the minimum requirement for all new construction and
additions or changes to existing piping or appliances installed; and
that all gas piping and appliance installations shall be inspected
and approved in compliance to the code by a representative or agent
of the City prior to connection to the natural gas system. The customer
shall take the necessary action to conform to the code before approval
of piping or installation is given by the City. The City or its representative
shall have the obligation to discontinue natural gas service when
the use thereof shall have been deemed hazardous, unsafe or potentially
dangerous to the public health and safety.
[CC 1984 §25.020; Ord. No. 293 §§2 — 3, 8-8-1966]
A.
All
gas piping and tubing for pressures not to exceed three (3) pounds
per square inch gauge pressure and all gas appliances and accessories
connected thereto shall be installed to conform to reasonable standards
of safety.
B.
The
installation of gas piping and tubing for pressures not to exceed
three (3) pounds per square inch gauge pressure and the installation,
alteration, maintenance and use of gas appliances and accessories
connected thereto which comply with the standards set forth by the
American Standards Association in their manual entitled "Installation
of Gas Piping and Gas Appliances in Building", 1964 Edition ASA Z21.30-1664
(or subsequently revised editions), as supplemented and modified by
this Article, shall be considered prima facie as conforming to reasonable
standards of safety. The provisions of said ASA Z21.30-1964 (or subsequently
revised editions) are incorporated herein by reference thereto as
though set out in full. The City Clerk shall keep available in his/her
office three (3) copies of said code, marked as official copies, for
study and inspection by any interested parties.
[CC 1984 §25.030; Ord. No. 293 §4, 8-8-1966]
A.
When
applying two (2) pounds per square inch pressure at the meter, piping
systems shall be designed to allow a maximum of twelve (12) pounds
per square inch pressure drop between the meter and the regulator
that reduces pressure to six (6) inches water column for appliance
use and will be designed to allow up to one (1) inch water column
pressure drop between the regulator that reduces pressure to six (6)
inches water column and the installed gas appliance.
B.
When
supplying more than two (2) pounds per square inch pressure at the
meter, the pressure drop shall be such that the minimum inlet pressure
to the regulator that reduces to six (6) inches water column for appliance
use shall not be less than fourteen (14) inches water column pressure.
C.
The
size of gas tubing hereafter installed shall conform to the following
table:
|
TABLE 1
Showing capacity of tubing of different diameters and
lengths at 1.5 PSI and 1 inch WC pressure drops and specific gravity
of 0.69.
| |||||||
|---|---|---|---|---|---|---|---|
|
Length
|
2 PSI pressure supplied at the meter and 1.5 PSI pressure
drop OD of tubing
|
Length
|
1 inch WC pressure drop OD of tubing
| ||||
|
3/8 inch
|
½ inch
|
5/8 inch
|
3/8 inch
|
½ inch
|
5/8 inch
| ||
|
5 feet
|
400
|
390
|
1,620
|
2 feet
|
98
|
218
|
395
|
|
10 feet
|
285
|
635
|
1,160
|
4 feet
|
70
|
156
|
281
|
|
15 feet
|
230
|
510
|
930
|
6 feet
|
56
|
124
|
226
|
|
20 feet
|
200
|
445
|
810
|
8 feet
|
47
|
104
|
190
|
|
30 feet
|
165
|
367
|
670
|
10 feet
|
40
|
89
|
162
|
|
40 feet
|
145
|
323
|
570
|
13 feet
|
33
|
73
|
133
|
|
50 feet
|
125
|
270
|
505
|
16 feet
|
28
|
62
|
113
|
|
60 feet
|
115
|
255
|
465
|
19 feet
|
24
|
53
|
97
|
|
70 feet
|
107
|
238
|
430
|
22 feet
|
21
|
47
|
85
|
|
80 feet
|
100
|
223
|
405
|
26 feet
|
19
|
42
|
77
|
|
90 feet
|
95
|
211
|
385
|
30 feet
|
17
|
38
|
69
|
|
100 feet
|
90
|
200
|
365
|
34 feet
|
15
|
33
|
60
|
|
115 feet
|
84
|
187
|
340
|
38 feet
|
14
|
31
|
56
|
|
130 feet
|
80
|
178
|
325
|
42 feet
|
13
|
29
|
52
|
|
150 feet
|
74
|
164
|
300
|
50 feet
|
11
|
24
|
44
|
[CC 1984 §25.040; Ord. No. 293 §5, 8-8-1966]
A.
Regulators
installed to reduce pressure from a maximum of three (3) pounds per
square inch pressure to six (6) inches water column for appliance
use shall:
1.
Be rated for at least three (3) pounds per square inch gauge operating
pressure.
2.
Have full shut off to maintain reduced pressure under static load
conditions (no gas flowing).
3.
Be rated to supply the load of appliances it feeds.
4.
Be vented by either a number eighty (80) vent limiting orifice or
by a ball check type regulator vent limiter.
5.
Be installed in accordance with manufacturer's instructions.
6.
Be installed on piping where it is not concealed.
[CC 1984 §25.050; Ord. No. 293 §6, 8-8-1966]
All appliances rated for inches water column pressure operation
must have an appliance regulator reducing pressure from six (6) inches
water column to the rated operating pressure.
[CC 1984 §25.060; Ord. No. 293 §§7 — 8, 8-8-1966]
A.
Piping
carrying pressure in excess of fourteen (14) inches water column shall
be clearly marked with the pressure the pipe is carrying at as close
to six (6) foot intervals as possible.
B.
All
domestic piping carrying gas at pressures above fourteen (14) inches
water column shall be semi-rigid copper tubing.
[CC 1984 §25.070; Ord. No. 293 §§9 — 15, 8-8-1966]
A.
When
copper tubing runs in a wall, flexible metal conduit shall be used
where the tubing runs through the plate spaces. In the wall, the conduit
must extend at least eighteen (18) inches either side of the plate
space.
B.
A spring
loaded, brass core cock with flare to pipe thread connections must
be used ahead of the regulator in lieu of an appliance shutoff valve.
C.
All
piping must be run parallel or perpendicular to the joists. Tubing
run parallel to the joist shall be fastened to the center of the vertical
face. Tubing run perpendicular to the joists shall be fastened to
the underside of the joist, preferably close to the water pipes, conduit,
duct work or center beams. Perpendicular runs may also be drilled
through the center of the joist.
D.
All
tubing shall be supported at not more than four (4) foot intervals
except for vertical drops to appliances.
E.
Where
tubing is used, all freestanding range connections shall be made with
three hundred sixty degrees (360°) coil of tubing between twelve
(12) and eighteen (18) inches in diameter.
F.
No
drips or pipe grading is required. Connections may be taken off of
the bottom of horizontal runs.
G.
All
fittings in a copper system shall be flared.
[CC 1984 §25.080; Ord. No. 293 §16, 8-8-1966]
No person, firm or corporation shall sell or offer for sale
or install any gas piping or tubing system for pressures not exceeding
three (3) pounds per square inch or any gas appliance or accessory
connected thereto if the same when installed for use would be in violation
of any of the provisions of this Article.
[CC 1984 §25.090; Ord. No. 293 §17, 8-8-1966]
Any person, firm or corporation who shall violate any provision of this Article shall be subject upon conviction thereof to a fine in accordance with Section 100.220 of this Code.
[CC 1984 §25.100; Ord. No. 293 §18, 8-8-1966]
Only the City or its representative shall inspect and turn on
natural gas service to a new customer.
[CC 1984 §25.110; Ord. No. 293 §19, 8-8-1966]
A.
All
persons performing services for the piping and installation or maintenance
of gas (natural, propane, etc.) consuming appliances are to be licensed
to perform such services within the City of New Haven. Each person
so licensed shall become thoroughly acquainted with all rules and
codes, including the other provisions of this Article. Such licenses
or applicants for licenses failing to comply with these regulations
or willfully violating such regulations shall, at the discretion of
the Board of Aldermen, forfeit such license.
B.
License
fees are hereby established as:
City resident five dollars ($5.00) per year.
Non-resident of City twenty-five dollars ($25.00) per year.
Out-of-state license applicants must appear before the Board
of Aldermen to obtain a license and the Board shall have the sole
discretion as to whether to grant licenses to said out-of-state applicants.
