Pressure Sealed Valves
DANSON is a distributor of forged pressure sealed valves, including pressure-sealed gate valves, pressure-sealed globe valves, and rotary check valves, designed to ASME B16.34 and, where applicable, API 600 or ISO 10434 standards. All designs are forged to improve mechanical properties, pressure holding capacity, and quality.
Forged pressure sealed valves utilize pressure-sealed valve caps designed to improve the sealing performance of the valve cap as pressure increases. These valves are an excellent choice for high-temperature and high-pressure applications such as steam applications, as higher pressure results in better sealing performance.
Product standards & features
Applicable standard range
| SIZE | 1/2 NPS – 24 NPS | Class | 600 – 2500 |
Applicable Standard
| Design | ASME B16.34, MSS SP-144 | Face to face | ASME B16.10 |
| Inspection & Testing | API 598 | Socket weld | ASME B16.11 |
| Marking | MSS SP-25 | Screw ends | ASME B1.20.1 |
| Fugitive emission | ISO 15848 | Flange Ends | ASME B16.5 |
| Butt Welding Ends | ASME B16.25 |
Product Features
|
1 |
No pressure retaining body-bonnet flanges or bolting. |
6 |
Sealing surfaces are machined to the tightest tolerances and lowest roughness and to ensure reliable sealing & long service life. |
|
2 |
Forged structure for all pressure containing parts. Optimized design for thermal fatigue required for power plant where frequent start-ups & shut-downs are the must. |
7 |
Best-in-Class CV values. |
|
3 |
Flanged valves are provided with flanges integral to the valve body forging or full penetration welded. |
8 |
Outside Screw and Yoke (OS&Y). |
|
4 |
Lighter weight design compared to bolted bonnet. |
9 |
Low operation torque design. |
|
5 |
High quality packing for reliable tightness and low emission performance. |
10 |
Self aligning two piece packing gland. |
Origin
|
1 |
Bonney Forge/ Italy |
3 |
ILSHIN/ KJS/ Korea |
|
2 |
FRI/ Italy |
4 |
JITAI/ China |