Product Overview
The HN103 Pressure Seal Globe Valve is designed for high-pressure shut-off and selected throttling service in ANSI pipeline systems. Compared with conventional bolted bonnet globe valves, the pressure self-seal bonnet structure is commonly used for higher pressure classes where internal pressure helps energize the bonnet sealing arrangement.
This series is suitable for oil, gas, steam, power plant, petrochemical and other compatible industrial media where full-open, full-closed or controlled flow operation is required. The catalog reference covers Class 900, Class 1500 and Class 2500 configurations.
HN103 can be configured with raised face, butt-welded or ring type joint end connections depending on pressure class, piping design and project specification. Material options include carbon steel, Cr-Mo alloy steel and stainless steel options.
Key Features
- Pressure self-seal bonnet structure for high-pressure ANSI service.
- Globe valve body pattern for shut-off and selected throttling operation.
- Rising stem structure for valve position indication.
- Guided disc and seat arrangement for stable shut-off performance.
- RF, BW and RTJ end options depending on pressure class.
- Available in Class 900, Class 1500 and Class 2500 configurations.
- Handwheel operation standard; bevel gear operation may be selected for larger sizes.
- Suitable for high-pressure steam, oil, gas, petrochemical, refinery and power plant pipelines.
Sectional Structure and Materials
The numbered sectional drawing corresponds to the position numbers in the materials table. Final material selection should be confirmed according to pressure class, working temperature and medium compatibility.
| Pos. | Parts Name | Carbon Steel | 1 1/4Cr-1/2Mo | Stainless Steel |
|---|---|---|---|---|
| 1 | Body | A216-WCB | A217-WC6 | A351-CF8M |
| 2 | Bracket | A216-WCB | A217-WC6 | A351-CF8M |
| 3 | Disc | A216-WCB + HF | A217-WC6 + HF | A351-CF8M + HF |
| 4 | Stem | A182-F6a | Cr-Mo-V | A182-316 |
| 5 | Seat | A105 + HF | A182-F11 + HF | A240-316 + HF |
| 6 | Bonnet | A105 | A182-F11 | A240-316 |
| 7 | Gasket | Reinforced flexible graphite | 304SS | Steel ring |
| 8 | Adjustment ring | Carbon steel | A276-420 | A276-316 |
| 9 | Packing | Graphite | A194-7 | A194-4 |
| 10 | Live bolt pin | Carbon steel | A276-420 | A276-316 |
| 11 | Live bolt | Carbon steel | A193-B7 | A193-B8 |
| 12 | Live nut | Carbon steel | A194-2H | A194-8 |
| 13 | Locking nut | Carbon steel | Alloy steel | Stainless steel |
| 14 | Packing pressure jacket | A276-420 | A276-304 | A276-316 |
| 15 | Packing gland | A216-WCB | A217-WC6 | A351-CF8M |
| 16 | Gland gasket | Carbon steel | Carbon steel | Carbon steel |
| 17 | Stem nut | Aluminium bronze | Aluminium bronze | Aluminium bronze |
| 18 | Screw | Carbon steel | Carbon steel | Carbon steel |
| 19 | Handwheel | Malleable iron | Malleable iron | Malleable iron |
| 20 | Handwheel gasket | Carbon steel | Carbon steel | Carbon steel |
| 21 | Handwheel nut | A194-2H | A194-2H | A194-2H |
Note: Alternative materials may be selected according to medium, temperature and project specification.
Technical Specifications
| Product type | Pressure seal globe valve |
| Model | HN103 |
| Pressure class | Class 900, 1500, 2500 |
| Size range | NPS 2 to NPS 12 depending on pressure class |
| Bonnet structure | Pressure self-seal bonnet |
| Body pattern | Globe valve for shut-off and selected throttling service |
| Body materials | Carbon steel, Cr-Mo alloy steel, stainless steel |
| End connections | RF, BW, RTJ depending on class and project requirement |
| Operation | Handwheel standard; bevel gear operation project-dependent |
| Design reference | BS 1873 / ANSI B16.34, ASME B16.34 |
| Face-to-face reference | ASME B16.10 |
| Flange reference | ASME B16.5 |
| Butt-weld end reference | ASME B16.25 |
| Test and inspection | API 598 |
Dimensions and Performance Data
ANSI Class 900Lb
| Item | 2 | 2 1/2 | 3 | 4 | 6 | 8 | 10 | 12 |
|---|---|---|---|---|---|---|---|---|
| BW L1 | 216 | 254 | 305 | 356 | 508 | 660 | 787 | 914 |
| RF L | 368 | 419 | 381 | 457 | 610 | 737 | 838 | 965 |
| RTJ L2 | 371 | 422 | 384 | 460 | 613 | 740 | 841 | 968 |
| Open H | 557 | 557 | 557 | 685 | 925 | 1100 | 1285 | 1450 |
| Do | 400 | 400 | 400 | 400 | 700 | 700 | 900 | 900 |
ANSI Class 1500Lb
| Item | 2 | 2 1/2 | 3 | 4 | 6 | 8 |
|---|---|---|---|---|---|---|
| BW L1 | 216 | 254 | 305 | 406 | 559 | 711 |
| RF L | 368 | 419 | 470 | 546 | 705 | 832 |
| RTJ L2 | 371 | 422 | 473 | 549 | 711 | 842 |
| Open H | 557 | 557 | 620 | 760 | 1135 | 1390 |
| Do | 400 | 450 | 500 | 600 | 700 | 900 |
ANSI Class 2500Lb
| Item | 2 | 2 1/2 | 3 | 4 | 6 |
|---|---|---|---|---|---|
| BW L1 | 279 | 330 | 368 | 457 | 610 |
| RF L | 451 | 508 | 578 | 673 | 914 |
| RTJ L2 | 454 | 514 | 584 | 683 | 927 |
| Open H | 595 | 595 | 710 | 820 | 1260 |
| Do | 400 | 500 | 600 | 700 | 900 |
Dimensions are catalog reference values in mm. Final dimensions and end connection details should be confirmed against the approved project drawing.
Applications
- High-pressure steam and power plant isolation service
- Oil and gas high-pressure pipelines
- Petrochemical and refinery process lines
- ANSI high-pressure water, steam, oil and compatible gas service
- Pipeline systems requiring pressure seal bonnet globe valves
- Shut-off and selected throttling service where API/ASME specifications are required
Standards and Compliance
- Design reference: BS 1873 / ANSI B16.34, ASME B16.34
- Pressure-temperature reference: ASME B16.34
- Face-to-face / end-to-end reference: ASME B16.10
- Flange reference: ASME B16.5
- Butt-weld end reference: ASME B16.25
- Test and inspection reference: API 598
Technical data is based on catalog reference information. Final dimensions, material grades and end connections should be confirmed according to project specification and approved drawings.
Frequently Asked Questions
What is the main difference between HN103 and HN102?
HN103 uses a pressure self-seal bonnet structure for high-pressure service, while HN102 is a standard API cast steel globe valve with a conventional bolted bonnet arrangement.
Which pressure classes are available?
The catalog reference covers Class 900, Class 1500 and Class 2500. The available size range depends on the selected pressure class and end connection.
Can HN103 be supplied with RF, BW or RTJ ends?
Yes. Raised face, butt-welded and ring type joint end configurations may be selected according to pressure class, piping design and project specification.
For a technical comparison of bonnet design options, see our API globe valve vs pressure seal globe valve comparison.
Related Technical Guides
For steam bypass, drain, vent and feedwater review, see these pressure seal gate and globe valve selection notes.
For technical comparison resources, see our API globe valve vs pressure seal globe valve comparison and API valve types guide.
Request Pricing and Technical Data
For current pricing, lead time or technical documentation for the Pressure Seal Globe Valve HN103, contact Honiks Valve using the form below or send your inquiry directly by email.
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