 
 | Nominal diameter: | NPS 1/4”~2” | 
| Operating temperature: | -29℃~595℃(the range of service temperature may vary for different materials) | 
| Operating pressure: | CLASS 150~2500 (PN 20~PN420) | 
| Material: | A105、A350 LF2、A182 F11、A182 F22、A182 F304、A182 F316、A182、F51、B150 C61900、B564 N04400、B546 N06625, etc. | 
| Design standard: | ISO 15761、API 602、BS 5352、ASME B16.34 | 
| Structural length: | Company standard、ASME B16.10(flange type) | 
| Connecting end: | ASME B16.5、ASME B16.25、ASME B16.11 | 
| Test standard: | API 598 | 
| Operation method: | The valve clack is automatically opened and closed with the medium force. | 
| Application fields: | For application in fields such as electric power industry, petroleum refining, petrochemical engineering, offshore oil, tap water engineering in urban construction, chemical engineering, etc. |