| Valve Type | Extended Bonnet Cryogenic Globe Valve (Plug Disc) |
| Operating Temp | -46°C to -196°C |
| Design & Flange Standard | BS 6364 / EN 1092-1 (PN40 RF) |
| Body Material | CF8 (ASTM A351 304 Stainless Steel) |
| Pressure Rating | PN40 (4.0 MPa) |
❄️ Deep Cryogenic Treatment: To ensure absolute dimensional stability and precise throttling at -196°C, all CF8 castings are submerged in liquid nitrogen. This cryogenic stress-relief process eliminates structural deformation and protects against micro-leaks in LNG services.
Chemical Composition (ASTM A351 CF8)
Premium austenitic stainless steel casting offering superior low-temperature toughness and oxidation resistance.
| Grade | C% | Mn% | Si% | P% | S% | Cr% | Ni% |
|---|---|---|---|---|---|---|---|
| CF8 | ≤ 0.08 | ≤ 1.50 | ≤ 2.00 | ≤ 0.040 | ≤ 0.040 | 18.0-21.0 | 8.0-11.0 |
Main Dimensions (PN40 Cryogenic Series)
| DN (mm) | Size (Inch) | Face-to-Face L (mm) | Flange OD (D) | Bonnet Height (H) |
|---|---|---|---|---|
| 15 | 1/2″ | 130 | 95 | 380 |
| 25 | 1″ | 160 | 115 | 410 |
| 50 | 2″ | 230 | 165 | 450 |
| 80 | 3″ | 310 | 200 | 520 |
| 100 | 4″ | 350 | 235 | 610 |
| 150 | 6″ | 480 | 300 | 780 |
| 200 | 8″ | 600 | 375 | 950 |
| 250 | 10″ | 730 | 450 | 1120 |
| 300 | 12″ | 850 | 515 | 1300 |
- Note: Face-to-Face dimensions (L) conform to DIN EN 558 Series 1. All cryogenic globe valves undergo strict low-temperature testing prior to shipment.
- Need specific bonnet lengths or MTC reports? Contact our engineering team to ensure exact fit for your insulated pipelines.
⚡ Engineered Automation & Actuation Solutions
BSO specializes in providing fully assembled and calibrated automated valve packages designed for severe service pipeline integration:
- Electric Actuation: Equipped with intelligent multi-turn or linear electric actuators, featuring explosion-proof enclosures (Ex d IIB/IIC T4) and 4-20mA modulating control for DCS integration.
- Pneumatic Actuation: Outfitted with heavy-duty pneumatic diaphragm or piston actuators, complete with smart positioners (Fisher/Rotork/Siemens), filter regulators, and limit switch boxes.
- Custom Engineering: All automated packages undergo 100% functional testing and cycle calibration before shipment to ensure precise throttling performance at -196°C.
