6
INLET GAS LINE REQUIREMENTS
PIPE
LENGTH
PIPE DIAMETERS (inches & (mm equivalents))
Maximum Allowable Flow (Shown in ft
3
/hr (M
3
/hr))
Feet
(Meters)
15
(4.6)
62
(1.7)
108
(4.7)
350
(9.8)
620
(17.4)
960
(26.9)
2,000
(56.0)
3,500
(98.0)
5,400
(151.2)
11,200
(313.6)
30
(9.1)
43
(1.2)
120
(3.4)
245
(6.9)
430
(12.0)
680
(19.0)
1,400
(39.2)
2,450
(68.6)
3,800
(106.4)
7,900
(221.2)
45
(13.7)
35
(1.0)
98
(2.7)
200
(5.6)
355
(9.9)
530
(14.8)
1,150
(32.2)
2,000
(56.0)
3,200
(89.6)
7,900
(182.0)
60
(18.3)
30
(0.8)
84
(2.4)
175
(4.9)
310
(8.7)
480
(13.4)
1,000
(28.0)
1,760
(49.3)
2,700
(75.6)
5,600
(156.8)
75
(22.9)
27
(0.8)
76
(2.1)
155
(4.3)
275
(7.7)
430
(12.0)
890
(24.9)
1,560
(43.7)
2,450
(68.6)
5,000
(140.0)
90
(27.4)
25
(0.7)
70
(2.0)
145
(4.1)
250
(7.0)
395
(11.1)
810
(22.7)
1,430
(40.0)
2,260
(63.3)
4,550
(127.4)
105
(32.0)
23
(0.6)
64
(1.8)
132
(3.7)
232
(6.5)
370
(10.4)
(750
(21.0)
1,300
(36.4)
2,100
(58.8)
4,200
(117.6)
120
(36.6)
21
(0.6)
60
(1.7)
125
(3.5)
215
(6.0)
340
(9.5)
700
(19.6)
1,200
(33.6)
1,950
(54.6)
4,000
(112.0)
150
(45.7)
19
(0.5)
54
(1.5)
110
(3.1)
195
(5.5)
310
(8.7)
630
(17.6)
1,080
(30.2)
1,750
(49.0)
3,550
(99.4)
180
(54.9)
17
(0.5)
49
(1.4)
100
(2.8)
175
(4.9)
280
(7.8)
570
(16.0)
960
(26.9)
1,600
(44.8)
3,200
(89.6)
210
(64.0)
16
(0.4)
44
(1.2)
94
(2.6)
165
(4.6)
260
(7.3)
530
(14.8)
890
(24.9)
1,450
(40.6)
3,000
(84.0)
240
(73.2)
15
(0.4)
43
(1.2)
88
(2.5)
155
(4.3)
240
(6.7)
500
(14.0)
840
(23.5)
1,350
(37.8)
2,800
(78.4)
270
(82.3)
14
(0.4)
40
(1.1)
83
(2.3)
145
(4.1)
230
(6.4)
470
(13.2)
780
(21.8)
1,300
(36.4)
2,650
(74.2)
300
(91.4)
14
(0.4)
38
(1.1)
79
(2.2)
138
(3.9)
215
(6.0)
440
(12.3)
750
(21.0)
1,250
(35.0)
2,500
(70.0)
450
(137.2)
11
(0.3)
31
(0.9)
64
(1.8)
112
(3.1)
176
(4.9)
360
(10.1)
630
(17.6)
1,000
(28.0)
2,050
(57.4)
600
(182.9)
10
(0.3)
27
(0.8)
56
(1.6)
97
(2.7)
152
(4.3)
315
(8.8)
530
(14.8)
860
(24.1)
1,750
(49.0)
NOTE:
1) FT3/HR (M3/HR) values may vary due to heating value and specific gravity of gas supplied by local companies.
2) To determine the inlet gas line diameter for the distance between the fryer and main gas regulator, locate the FT3/HR (M3/HR) of gas required for the fryer and
pipe length and read the pipe diameter on the top row. For example: a 14” ZRT3-H fryer operating on
NATURAL GAS
requires 85.71 FT3/HR (2.43 M3/HR)
of gas at the fryer’s inlet gas manifold. If the fryer bank is located 60 feet from the building gas regulator, a 1” (25mm) diameter gas line
MUST
be installed
between the manifold and regulator.
1⁄2”
(13 mm)
3⁄4”
(19mm)
1”
(25mm)
11⁄4”
(32mm)
11⁄2”
(38mm)
2”
(51mm)
21⁄2”
(64mm)
3”
(76mm)
4”
(102mm)
INLET GAS LINE SIZING -
The Table below is to be utilized to calculate the size (diameter) of the inlet gas line from the building regulator to
the fryer manifold.
NOTE: The flexible gas line used to connect the gas manifold to the building gas supply line must rated for the BTU/Hr (MJ/Hr) for the Fryer.
For example: the BTU/Hr (MJ/Hr) rating for a ZRT3-H fryer is 90,000 BTU/Hr (99 MJ/Hr) and therefore would require a 3⁄4” diameter
gas line.
INLET GAS REQUIREMENTS
MODEL ZRT3-H-3 GAS FRYERS
14” (356)
Butane
Natural
Propane
10.0 (254)
4.0 (102)
10.0 (254)
#36
#16
#32
90,000 (99.0)
90,000 (99.0)
90,000 (99.0)
28.13 (0.80)
85.71 (2.43)
36.00 (1.02)
VAT SIZE
Model ZRT3-H
IN MM
GAS TYPE
GAS VALVE SETTING (WC)
IN MM
ORIFICE HOLE
SIZE
RATING
BTU/HR MJ/HR
INLET GAS REQ’D
FT
3
/HR M
3
/HR
NUMBER
DESCRIPTION
RATING
BTU/HR (MJ/HR)
24-322
3⁄4” (19mm) Diameter Flexible Gas Line (w/quick connect
couplings) 48” (1219mm) long. Connect-It SSGC75-48-UCQ
225,000 (281)
24-323
1” (25mm) Diameter Flexible Gas Line (w/quick connect
couplings) 48” (1219mm) long. Connect-It SSGC100-48-UCQ
435,000 (459)
24-456
11⁄4” (32mm) Diameter Flexible Gas Line (w/quick connect
couplings) 48” (1219mm) long. Connect-It SSGC125-48-UCQ
875,000 (923)
FLEXIBLE GAS LINES STOCKED BY ULTRAFRYER SYSTEMS
INLET GAS REQUIREMENTS
The Flexible Gas Line used to connect the gas manifold to the building gas supply line must be rated for the BTU/Hr (MJ/Hr) designated for the
Fryer. Flexible gas lines and their ratings stocked by Ultrafryer Systems are listed below:
