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MFN heAtING NozzLes
propane
tip
pressure
size
Range
(psIG)
8
10-15
10
12-20
12*
15 - 25
15*
15 - 25
20*
20 - 30
*Use model HD310C torch and 3/8" hose.
tYpes 1-101, 3-101 (oXY-AcetYLeNe)
Metal
tip
thickness
size
1/8"
000
1/4"
00
3/8"
0
1/2"
0
3/4"
1
1"
2
2"
3
3"
4
4"
5
6"
6**
10"
7**
12"
8**
*
Applicable for three-hose machine cutting torches only. With a two-hose cuting torch,
preheat pressure is set by the cuttting oxygen.
**
For best results use HC1200C series torches and 3/8" hose using a size 6 tip or
larger.
*** All pressures are measured at the regulator using 25' x 1/4" hose through tip size 5,
and 25' x 3/8" hose for tip size 6 and larger.
oxygen
pressure
Range
(psIG)
10-20
10-30
30 - 125
30 - 125
40 - 135
cutting oxygen
pres-
Flow***
sure***
(scFh)
(psIG)
20 - 25
20 - 25
20 - 25
30 - 35
25 - 30
55 - 60
30 - 35
60 - 65
30 - 35
80 - 85
35 - 40
140 - 160
40 - 45
210 - 240
40 - 50
280 - 320
45 - 55
390 - 450
45 - 55
500 - 600
45 - 55
700 - 850
45 - 55 900 - 1050
propane cubic
Feet per hour
Min
Max
10
35
20
80
30
160
50
200
75
250
pre-heat
pres-
oxygen*
sure
(psIG)
(psIG)
3 - 5
3 - 5
3 - 5
3 - 5
3 - 5
3 - 5
3 - 6
3 - 5
4 - 7
3 - 5
4 - 8
3 - 6
5 - 10
4 - 8
5 - 10
5 - 11 18 - 28 10 - 12
6 - 12
6 - 13 22 - 30
6 - 15
8 - 14 25 - 35
6 - 20
10 - 15 25 - 35
7 - 25
10 - 15 25 - 35
7-19
oxygen cubic
Feet per hour
BtU per
Min
Max
40
140
80
320
120
640
200
800
300
1000
Acetylene
Flow
speed
(scFh)
(IpM)
6 - 11 20 - 30
6 - 11 20 - 28
6 - 11 18 - 26
9 - 16 16 - 22
8 - 13 15 - 20
10 - 18 13 - 18
14 -24 10 - 12
6 - 9
4 - 7
3 - 5
3 - 4
hour
See
Note,
page
23
kerf
width
.04
.05
.06
.06
.07
.09
.11
.12
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.15
.34
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