Rosemount 9901 includes a series of high-quality bypass pipes for installing level measurement and control instruments on the exterior of process vessels. This series adopts a design that complies with the PED (Pressure Equipment Directive) according to ASME B31.3 or B31.1, allowing users to purchase integrated screws
Rosemount ® 9901 includes a series of high-quality bypass pipes for installing level measurement and control instruments on the exterior of process vessels.
This series adopts a design that complies with the PED (Pressure Equipment Directive) according to ASME B31.3 or B31.1, allowing users to purchase an integrated bolted instrument solution or only purchase a bypass pipe for use with existing instruments.
The 9901 series only uses certified and traceable materials, manufactured with full penetration welds, and welders and welding procedures that comply with ASME and European standards. All bypass pipes undergo hydraulic testing upon completion, and currently all series of NDT or customer inspection options can be ordered.
Adapt to the standardized or customized design of existing containers
Can install process level instruments externally
Can perform real-time maintenance
Design in accordance with ASME B31.3
Provide products that comply with ASME B31.1 as requested
Compliant with the Pressure Equipment Directive (PED)
Used in major industrial sectors worldwide
Very suitable for important areas and general applications
Various process connectors and optional drain/exhaust connectors
Over 50 years of experience in designing and manufacturing bypass pipes in accordance with international standards
Instrument isolation installation is required
Real time maintenance
safe operation
Hazardous liquids
High pressure and high temperature applications
Mandatory installation of bypass pipes for storage tanks
blender
heat exchanger
Hazardous liquids
The internal structure of the tank is complex
Waveguide tube
Used as a waveguide under turbulent conditions
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structural material
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Only materials suitable for use in pressurized environments and certified by ASME B31.3 can be used to manufacture bypass pipes. You can also place special orders for other materials.
Bypass pipe material
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component
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carbon steel
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stainless steel
|
| Instrument installation flange |
ASTM A105 |
ASTM A182 F316/F316L |
| Main bypass pipe |
ASTM A106 B 级 |
ASTM A312 TP316/TP316L |
| Bypass pipe end cap |
ASTM A105 |
ASTM A182 F316/F316L |
| Process flange/joint |
ASTM A105 |
ASTM A182 F316/F316L |
T-joints and variable diameter pipes (T-shaped design) |
ASTM A234 WPB |
ASTM A403 WP316/WP316L–S |
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pressure rating
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Maximum pressure rating of 9901 bypass pipe
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Carbon steel bypass pipe
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Stainless steel bypass pipe
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Bypass pipe rated value(1)
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PSI (68°F)
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Bar (20°C)
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PSI (752°F)
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Bar (400°F)
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PSI (68°C)
|
Bar (20°F)
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PSI (752°C)
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Bar (400°F)
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| ASME B16.5 Class 150 |
285 |
19.6 |
95 |
6.5 |
275 |
19 |
95 |
6.5 |
| ASME B16.5 Class 300 |
740 |
51.1 |
505 |
34.7 |
720 |
49.6 |
425 |
29.4 |
| ASME B16.5 Class 600 |
1480 |
102.1 |
1015 |
69.4 |
1440 |
99.3 |
55 |
58.9 |
| ASME B16.5 Class 900 |
2220 |
153.2 |
1520 |
104.2 |
2160 |
148.9 |
1280 |
88.3 |
| ASME B16.5 Class 1500 |
3705 |
255.3 |
2517 |
173.6 |
3600 |
248.2 |
2135 |
147.2 |
| EN1092 PN16 |
232 |
16 |
137 |
9.5 |
227 |
15.7 |
134 |
9.3 |
| EN1092 PN25 |
362 |
25 |
214 |
14.8 |
356 |
24.6 |
211 |
4.6 |
| EN1092 PN40 |
580 |
40 |
345 |
23.8 |
69 |
39.3 |
339 |
23.4 |
| EN1092 PN63 |
913 |
63 |
543 |
37.5 |
899 |
62 |
536 |
37 |
| EN1092 PN100 |
1450 |
100 |
862 |
59.9 |
1427 |
98.4 |
851 |
58.7 |
| EN1092 PN160 |
2320 |
160 |
1380 |
95.2 |
2291 |
158 |
1361 |
93.9 |
| EN1092 PN250 |
3625 |
250 |
2157 |
148.8 |
3567 |
246 |
2132 |
147 |
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temperature rating
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Maximum pressure rating of 9901 bypass pipe
| material |
Temperature range of bypass pipe(1)
|
| Carbon steel bypass pipe |
14 to 752 ° C (-10 to 400 ° C) |
| Stainless steel bypass pipe |
-148 to 752 ° F (-100 to 400 ° C) |
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