SCHWERLL supplies high‑pressure gas (or liquid) safety valves with stable performance, compliant with DN6 and DN9 specifications and equipped with pipeline‑mounted overflow discharge ports. Our products meet international standards such as CE and ASME, and their testing is conducted by authorized laboratories in accordance with I.S.P.E.S.L. or ASME national codes. In China, if you require a calibration certificate that complies with the Chinese TS standard, please specify this when placing your order.
