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Beijing Shunyi District Xuhui Airport Center C-1035
Beijing Handasen Machinery Technology Co., Ltd
Beijing Shunyi District Xuhui Airport Center C-1035
In the demanding field of special gas applications such as hydrogen, the selection of safety valves is not only related to system pressure safety, but also directly related to leak prevention and long-term asset integrity. We are proud to launch a platform based onLESER 4412 ANSI seriesA deeply customized solution, with a complete model of4412.4512Intended to provide reliable, precise, and compliant safety protection for your hydrogen energy project.
Core structure design
Classic conventional structure: Adopting441/442 ANSI seriesBelowConventional designThe structure is mature and reliable, has passed long-term industrial application verification, and is suitable for general working conditions.
Standard shell material: ItsshellAdopting1.0619 (SA216 WCB, GP240GH)Material manufacturing, in accordance with the standard configuration of Type 4412 in the attachment. At the same time, this model of product providesWCB, WCC, and 1.0619 material certificationsTriple quality certification ensures the compliance of raw materials and manufacturing.
Professional protection upgrade
Sealed Bonnet H4The valve is equipped withH4 type closed valve cap, Built inPacking box leverDesign. This structure can effectively isolate the medium environment and hasAnti gas leakage functionIt is a standard and key configuration for handling flammable and explosive media such as hydrogen that require strict sealing, which can reduce the risk of leakage and protect the safety of the working environment.
Accurate flow channel and sealing design
Entrance (flange H89): AdoptingRa 3.2 – 6.3 µmTheSerrated spiral patternPrecision machining. This level surpasses the standard Ra 12.5-50 µ m smooth surface, providing a more stable and reliable initial seal for leak prone media such as hydrogen.
Export (flange L39): Also usedRa 3.2 – 6.3 µmTheSerrated spiral patternPrecision machining ensures that downstream connections are equally safe and secure.
Size and diameter: Equipped withNPS 1 'entranceAndNPS 1/2 'exportThe combination of takeover dimensions. Its coreActual throat diameter area(d0) is23.0 millimetersThe corresponding throat area is approximately416 square millimetersThe attached table shows that the corresponding size for this specification is1' x 2'The model. This size is the preferred area calculated according to ASME/DIN standards to ensure that the discharge capacity matches the set pressure.
flange sealingBoth the entrance and exit are selectedASME B16.5 CL150Supporting flanges for pressure rating. More importantly, its flange sealing surface has undergone professional level treatment:
Key performance range
Pressure level adaptationThe attachment data shows that the valve body material is1.0619 (WCB)The4412Series, with optional inlet flangeCL150 or CL300And the export standard isCL150This is consistent with what you have specifiedCL150Level matching.
Wide job adaptability and safety redundancyAccording to the attachmentRated pressure and temperatureTable, for dimensions of1' x 2'The valve, itsThe maximum set pressure can reach 49 bar (711 psi), and can reach 51 bar (740 psi) when using special springs. And your working condition requirements areWork pressure 8 barg (approximately 8.17 bar)This provides a sufficient and safe range of options for the spring setting of the valve (with a minimum set pressure of 0.1 bar). Meanwhile-85 ° C to+450 ° CThe wide working temperature range (compliant with DIN EN standards) covers you179°CThe operating conditions have left sufficient safety margins.