Medium, High, and Ultra-High Pressure Tubings
Introduction
Parker Autoclave Engineers offers a complete selection of austenitic, cold-drawn stainless steel tubing designed to match the performance standards of Parker Autoclave valves and fittings. Parker Autoclave Engineers medium-pressure tubing is manufactured specifically for high-pressure applications requiring both strength and corrosion resistance. The tubing is furnished randomly between 6 meters (20 feet) and 8.0 meters (26.5 feet). The average is 7.3 meters (24 feet). Medium Pressure Tuning is available in six sizes and a variety of materials.
The main concept of Autoclave Engineers always remains the same, as the operating pressure increases, the thickness of the tube increases. This is the fundamental basis for all connections. However, the diameter of the pipe must always be considered.
The following tables show exactly this.
Medium Pressure Tubing
 Figure 1 - Medium Pressure Tubing
- The medium pressure tubings it is certainly the most used in the world, it provides a great variety of connections and flows rate including also materials anti-corrosion like Inconel etc.
- The Operating Temperatures from -423° to 1200°F (-252° to 650°C)
- For extreme conditions of vibration and/or shock in tubing systems, such as an unsupported line near a compressor, coned-and-threaded connections exist offered anti-vibration collar gland assembly. See Figures 2 and 3 below
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 Figure 2 - Anti Vibration Fitting
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 Figure 3 - Anti Vibration Fitting
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Figures 2 and 3 above are taken from Autoclave Engineering. This company provides Gland and internal Collar anti-vibration for all sizes of tubings called with identification KGBGLX. For more details, see Figure 4 below.
 Figure 4 - Anti-vibration Collar Gland
Medium Pressure Connection: Step-by-Step Assembly Instructions
below are all tables with all details
Tubing Details: 316/316L, UNS S31600/S31603 Stainless Steel (Cold Worked)
|
Catalog Number
|
Tube Material
|
Fits Connection Type
|
Tube Size inches (mm)
|
Flow Area in2 (mm2)
|
Working Pressure psi (bar)*
|
|
Outside Diameter
|
Inside Diameter
|
Wall Thickness
|
-423 to 100ºF
(-252 to 38ºC)
|
200ºF (93ºC)
|
400ºF (204ºC)
|
600ºF (316ºC)
|
|
MS15-092
|
316SS
|
SF250CX
|
1/4 (6.35)
|
0.109
(2.77)
|
.070
(1.78)
|
0.009
(5.81)
|
20,000
(1379)
|
20,000
(1379)
|
19,000
(1310)
|
18,000
(1241)
|
|
MS15-093
|
316SS
|
SF375CX
|
3/8 (9.63)
|
0.203
(6.16)
|
.086
(2.18)
|
0.032
(20.66)
|
20,000
(1379)
|
20,000
(1379)
|
19,000
(1310)
|
18,000
(1241)
|
|
MS15-097
|
316SS
|
SF562CX
|
9/16 (14.29)
|
0.359
(9.12)
|
.101
(2.57)
|
.101
(65.16)
|
15,000
(1034)
|
15,000
(1034)
|
14,200
(979)
|
13,500
(931)
|
|
MS15-085
|
316SS
|
0.312
(7.92)
|
.125
(3.18)
|
.076
(49.03)
|
20,000
(1379)
|
20,000
(1379)
|
19,000
(1310)
|
18,000
(1241)
|
|
MS15-098
|
316SS
|
SF750CX
|
3/4 (19.06)
|
0.516
(13.11)
|
.117
(2.97)
|
.209
(134.84)
|
15,000
(1034)
|
15,000
(1034)
|
14,200
(979)
|
13,500
(931)
|
|
MS15-095
|
316SS
|
0.438
(11.13)
|
.156
(3.96)
|
0.151
(97.42)
|
20,000
(1379)
|
20,000
(1379)
|
19,000
(1310)
|
18,000
(1241)
|
|
MS15-099
|
316SS
|
SF1000CX
|
1
(25.40)
|
0.688
(17.48)
|
.156
(3.96)
|
.371
(239.36)
|
15,000
(1034)
|
15,000
(1034)
|
14,200
(979)
|
13,500
(931)
|
|
MS15-096
|
316SS
|
0.556
(14.27)
|
.219
(6.66)
|
0.248
(160.00)
|
20,000
(1379)
|
20,000
(1379)
|
19,000
(1310)
|
18,000
(1241)
|
|
13041
|
316SS
|
SF1500CX
|
1-1/2 (38.10)
|
0.937
(23.80)
|
0.281
(7.14)
|
0.689
(444.88)
|
15,000
(1034)
|
15,000
(1034)
|
14,200
(979)
|
13,500
(931)
|
Tubing Details: 2507 Super Duplex, UNS S32750
(Annealed - meets NACE/ISO 15156 & NORSOK M650, must use -SOG suffix for NACE conformance certificate)
|
Catalog Number
|
Tube Material
|
Fits Connection Type
|
Tube Size inches (mm)
|
Flow Area in2 (mm2)
|
Working Pressure psi (bar)*
|
|
Outside Diameter
|
Inside Diameter
|
Wall Thickness
|
-50° to 100°F
(-45° to 38°C)
|
200ºF (93ºC)
|
400ºF (204ºC)
|
600ºF (316ºC)
|
|
MS15-503
|
2507
|
SF250CX
|
1/4 (6.35)
|
0.109
(2.77)
|
.070
(1.78)
|
0.009
(5.81)
|
20,000
(1379)
|
17,500
(1207)
|
15,200
(1048)
|
14,400
(993)
|
|
MS15-504
|
2507
|
SF375CX
|
3/8 (9.63)
|
0.203
(6.16)
|
.086
(2.18)
|
0.032
(20.66)
|
20,000
(1379)
|
17,500
(1207)
|
15,200
(1048)
|
14,400
(993)
|
|
MS15-500
|
2507
|
SF562CX
|
9/16 (14.29)
|
0.359
(9.12)
|
.101
(2.57)
|
0.101
(65.16)
|
15,000
(1034)
|
13,200
(910)
|
11,400
(786.0)
|
10,500
(724.05)
|
|
MS15-505
|
2507
|
0.312
(7.92)
|
.125
(3.18)
|
0.076
(49.03)
|
20,000
(1379)
|
17,500
(1207)
|
15,200
(1048)
|
14,400
(993)
|
|
MS15-501
|
2507
|
SF750CX
|
3/4 (19.06)
|
0.516
(13.11)
|
0.017
(2.97)
|
0.209
(134.84)
|
15,000
(1034)
|
13,200
(910)
|
11,400
(786.0)
|
10,500
(724.05)
|
|
MS15-506
|
2507
|
0.438
(11.13)
|
0.156
(3.96)
|
0.151
(97.42)
|
20,000
(1379)
|
17,500
(1207)
|
15,200
(1048)
|
14,400
(993)
|
|
MS15-502
|
2507
|
SF1000CX
|
1
(25.40)
|
0.688
(17.48)
|
0.156
(3.96)
|
0.371
(239.36)
|
15,000
(1034)
|
13,200
(910)
|
11,400
(786.0)
|
10,500
(724.05)
|
|
MS15-507
|
2507
|
0.562
(14.27)
|
0.219
(5.56)
|
0.248
(160.00)
|
20,000
(1379)
|
17,500
(1207)
|
15,200
(1048)
|
14,400
(993)
|
|
MS15-509
|
2507
|
SF1500CX
|
1-1/2 (38.10)
|
0.937
(23.79)
|
.281
(7.13)
|
0.689
(444.88)
|
15,000
(1034)
|
13,200
(910)
|
11,400
(786.0)
|
10,500
(724.05)
|
Tubing Details: Inconel 625®, UNS N06625
(Annealed - meets NACE/ISO 15156, must use -SOG suffix for NACE conformance certificate)
|
Catalog Number
|
Tube Material
|
Fits Connection Type
|
Tube Size inches (mm)
|
Flow Area in2 (mm2)
|
Working Pressure psi (bar)*
|
|
Outside Diameter
|
Inside Diameter
|
Wall Thickness
|
-423 to 100ºF
(-252 to 38ºC)
|
200ºF (93ºC)
|
400ºF (204ºC)
|
600ºF (316ºC)
|
|
13234
|
IN625
|
SF250CX
|
1/4 (6.35)
|
0.109
(2.77)
|
.070
(1.78)
|
0.009
(5.81)
|
15,000
(1034)
|
14,100
(972)
|
13,600
(938)
|
12,800
(883)
|
|
13062
|
IN625
|
SF375CX
|
3/8 (9.63)
|
0.203
(6.16)
|
.086
(2.18)
|
0.032
(20.66)
|
15,000
(1034)
|
14,100
(972)
|
13,600
(938)
|
12,800
(883)
|
|
13233
|
IN625
|
SF562CX
|
9/16 (14.29)
|
0.312
(7.92)
|
.125
(3.18)
|
0.076
(49.03)
|
15,000
(1034)
|
14,100
(972)
|
13,600
(938)
|
12,800
(883)
|
|
13232
|
IN625
|
SF750CX
|
3/4 (19.06)
|
0.438
(11.13)
|
0.156
(3.96)
|
0.151
(97.42)
|
15,000
(1034)
|
14,100
(972)
|
13,600
(938)
|
12,800
(883)
|
|
13231
|
IN625
|
SF1000CX
|
1
(25.40)
|
0.562
(14.28)
|
0.219
(5.56)
|
0.248
(160.00)
|
15,000
(1034)
|
14,100
(972)
|
13,600
(938)
|
12,800
(883)
|
High-Pressure Tubings
High Pressure Tubing Details: 316/316L & 304/304L Stainless Steel (Cold Worked)
|
Catalog Number
|
Tube Material
|
Fits Connection Type
|
Tube Size inches (mm)
|
Flow Area in2 (mm2)
|
Working Pressure psi (bar)*
|
|
Outside Diameter
|
Inside Diameter
|
Wall Thickness
|
-423 to 100ºF
(-252 to 38ºC)
|
200ºF (93ºC)
|
400ºF (204ºC)
|
600ºF (316ºC)
|
|
MS15-081
|
316SS
|
F250C
|
1/4
(6.35)
|
0.083
(2.11)
|
0.083
(2.11)
|
0.005
(3.23)
|
60,000
(4140)
|
60,000
(4140)
|
57,750
(3982)
|
54,250
(3740)
|
|
MS15-182
|
304SS
|
60,000
(4140)
|
56,800
(3916)
|
17,200
(1172)
|
50,700
(3496)
|
|
MS15-087
|
316SS
|
F375C
|
3/8
(9.63)
|
0.125
(3.18)
|
0.125
(3.18)
|
0.012
(7.74)
|
60,000
(4140)
|
60,000
(4140)
|
57,750
(3982)
|
54,250
(3740)
|
|
MS15-183
|
304SS
|
60,000
(4140)
|
56,800
(3916)
|
51,650
(3561)
|
50,700
(3496)
|
|
MS15-083
|
316SS
|
F562C
|
9/16
(14.29)
|
0.188
(4.78)
|
0.187
(4.75)
|
0.028
(18.06)
|
60,000
(4140)
|
60,000
(4140)
|
57,750
(3982)
|
54,250
(3740)
|
|
MS15-185
|
304SS
|
60,000
(4140)
|
56,800
(3916)
|
51,650
(3561)
|
50,700
(3496)
|
|
MS15-090
|
316SS
|
F562C40
|
9/16
(14.29)
|
0.250
(6.35
|
.156
(3.96)
|
.048
(30.97)
|
40,000
(2760
|
40,000
(2760)
|
38,500
(2654)
|
36,100
(2489)
|
|
MS15-211
|
316SS
|
F1000C43
|
1
(25.40)
|
0.438
(11.13)
|
.281
(7.14)
|
0.151
(97.42)
|
43,000
(2965)
|
43,000
(2965)
|
43,000
(2965)
|
41,380
(2853)
|
Ultra High-Pressure Tubing
|
Catalog Number
|
Tube Material
|
Fits Connection Type
|
Tube Size inches (mm)
|
Flow Area in2 (mm2)
|
Working Pressure psi (bar)*
|
|
Outside Diameter
|
Inside Diameter
|
Wall Thickness
|
-100 to 100ºF
(-73 to 38ºC)
|
200ºF (93ºC)
|
400ºF (204ºC)
|
600ºF (316ºC)
|
|
MS15-202
|
HP160
|
F250C100
|
1/4
(6.35)
|
0.083
(2.11)
|
0.083
(2.11)
|
0.005
(3.23)
|
100,000
(6900)
|
83,000
(5727)
|
72,000
(4965)
|
65,000
(4480)
|
|
MS15-201
|
HP160
|
F375C100
|
3/8
(9.63)
|
0.125
(3.18)
|
0.125
(3.18)
|
0.012
(7.74)
|
100,000
(6900)
|
83,000
(5727)
|
72,000
(4965)
|
65,000
(4480)
|
|
MS15-210
|
HP160
|
F562C100
|
9/16
(14.29)
|
0.188
(4.78)
|
0.187
(4.75)
|
0.028
(18.06)
|
100,000
(6900)
|
83,000
(972)
|
72,000
(4965)
|
65,000
(4480)
|
| |
| |
|
|
|
|
|
|
|
|
|
|
|
MS15-082
|
316SS
|
F312C150
|
5/16
(7.94)
|
0.062
(1.57)
|
.125
(3.18)
|
.003
(1.94)
|
150,000
(10350)
|
150,000
(10350)
|
144,400
(9956
|
136,350
(9401)
|
|
Note:
100,000 psi HP160 tubing is Autofrettaged as standard. (see Technical section: Pressure Cycling for an explanation of “Autofrettage”.
*Maximum pressure rating is based on the lowest rating of any component. Actual working pressure may be determined by tubing pressure rating, if lower.
All dimensions for reference only and subject to change. For prompt service, Parker Autoclave Engineers stocks select products. Consult your local representative.
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Recommendations
- A line includes fittings and tubing (thicKness), which are associated with the pressure rating when building a medium, high, or ultra-high-pressure line. If a line has been determined to be high pressure, all tubing and fittings must be for high pressure. Any changes on the line, such as a medium pressure fitting or lower tube thickness, all the line will be downgraded to that lower fitting or the lower rating tube.
- When building a line, never mix any materials, such as stainless steel, with Inconel or other materials.
- Connections must be 100% secure. If a connection is unsafe, never leave it as it is; it could break at any moment, resulting in injured personnel near that connection.
- There are several tubing diameters around, which is very easy to confuse. The wrong diameter of the tube could be fatal. Before using the tube, always check that the diameter of the hose is correct (by calliper).
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