Louisville CD-1261, Руководство пользователя

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4
Model 121 Regulators Brochure
An outstanding feature of the 121 is large capacity. It has so
much that at higher inlet pressure it is necessary to increase the
size of the outlet piping.
This pipe size increase is indicated by the asterisks in the
capacity tables below and on pages 4, 5, 6 and 7. The following
note explains how to read this data from the tables:
NOTe: (DFKFDSDFLW\¿JXUHLPPHGLDWHO\DERYHWKHKHDY\
horizontal lines is a maximum capacity for the outlet pipe
size shown. Increasing the inlet pressure will not increase
the capacity without also increasing the outlet pipe size
as indicated.
1½", 2" and 2½" Model 121-12
Capacity in scfh of natural gas
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For example: a 1½" Model 121-12 at 5" w.c. set-point has the
following maximum capacities:
1. With 1½" size outlet piping ........................ 14,600 SCFH
at 3 psi to 60 psi inlet pressure.
2. With 2" size outlet piping ........................... 37,000 SCFH
at 15 psi to 60 psi inlet pressure.
3. With 3" size outlet piping ........................... 95,000 SCFH
at 60 psi inlet pressure.
The designated increase in outlet pipe size must be made
immediately downstream of the regulator outlet.
This NOTe applies to the asterisks in all capacity tables, pages
4, 5, 6 and 7.
Pipe
Size
Inlet
Pressure
Outlet Pressure
Regulator
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Set-Point
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Set-Point
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Set-Point
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Set-Point
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Set-Point
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Set-Point
2 psi.
Set-Point
3 psi.
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Blue Spring
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Green Spring
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Orange Spring
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Orange Spring
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¼ psi. Droop
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½ psi. Droop
1½" *
8" w.c. 4000 3000 — — — — —
1½"
Model
121-12
14" w.c. 4900 4500 3700 — — — —
1 psi 7400 7000 6500 6000 — — —
2 psi 11500 11000 10300 9500 10000 — —
3 psi 14600 14500 13750 12500 13000 10000 —
2" *
5 psi 19500 19400 18500 17300 18000 16400 14000
10 psi 30000 30000 28000 27000 27500 25100 25500
15 psi 37000 37000 36200 35000 35700 34000 31500
3" *
25 psi 50000 50000 49000 47400 48000 46000 45500
40 psi 68000 68000 67100 66000 66600 64200 63500
50 psi 80000 80000 79000 77700 78000 74900 76000
60 psi 95000 95000 93500 90000 92000 87000 86500
2" *
8" w.c. 5000 4000 — — — — —
2"
Model
121-12
14" w.c. 8900 8000 6600 — — — —
1 psi 13000 12500 12000 11000 — — —
2 psi 20500 20000 19400 17500 18000 — —
3 psi 26300 26000 25000 23400 23800 19000 —
5 psi 35000 35000 34500 33500 34000 30000 27500
3" *
10 psi 52000 52000 51000 49600 50000 49000 46500
15 psi 68000 68000 67500 65500 66000 64700 61500
25 psi 90000 90000 89000 88000 88500 84500 87000
4" *
40 psi 125000 125000 124000 120000 .121500 118000 116500
50 psi 150000 150000 148000 145000 146500 143300 139500
60 psi 175000 175000 174000 171200 172000 170000 165500
2½" *
8" w.c. 5500 4500 — — — — —
2½"
Model
121-12
14" w.c. 9700 9000 7300 — — — —
1 psi 14400 14000 13000 12000 — — —
2 psi 22200 22000 21000 19100 20000 — —
3 psi 29100 29000 27900 26000 27100 21500 —
5 psi 39500 39500 38700 37000 37600 33500 27500
3" *
10 psi 5800 58000 57000 54800 55500 53000 52000
15 psi 75500 75500 74000 71900 72300 70100 66500
25 psi 100000 100000 99000 97100 98000 94000 94000
4" *
40 psi 140000 140000 138000 133500 135000 130000 129500
50 psi 166000 166000 164000 156000 158000 155000 153500
60 psi 195000 195000 193000 189700 191000 188000 179000
*See NOTE in upper part of page 4.
NOTe: The above performance data is based on normal testing
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