结构特点
controlled disc motion moderating opening and closing transients

最终尺寸、材质、压力等级及随附文件以确认的配置为准。
止回阀 / LIANGGU
Slow-Opening Slow-Closing Check Valve
通过控制阀瓣运动,缓和启闭过程中的瞬态变化。 项目询价时,请提供口径、压力等级、材质、阀座及密封形式、连接方式和数量。最终适用性以审核确认的技术规格为准。
产品详情
controlled disc motion moderating opening and closing transients
forward differential pressure opens the closure element; falling or reversing flow returns it toward the seat; closing behavior depends on line velocity, orientation, inertia, spring force, and the system transient; verify damping setting and minimum velocity
long water pipelines, pumping stations, mine water systems, and installations vulnerable to water hammer
opening profile, damping setting, minimum velocity, pump rundown, surge limit, and pipeline transient model
规格审查
厂家列出的选项仍须根据所选结构和使用工况确认,并非适用于所有配置的固定规格。
| 尺寸/DN 或 NPS | 特定于项目 - 包含在您的 RFQ 中 |
|---|---|
| 压力等级 | 特定于项目 - 包含在您的 RFQ 中 |
| 常见可选材质 | 厂家列示选项Carbon steel, low-temperature steel, stainless steel, alloy steel, or another approved alloy after service and fabrication review |
| 端部连接形式及标准 | 厂家列示选项Flanged or butt-welded ends, or a wafer pattern where specifically identified, matched to the approved piping class |
| 驱动方式及附件 | 厂家列示选项Self-acting check function with an assisted closure or damping system engineered from the transient analysis |
| 设计标准 | 厂家列示选项API 594 may apply to flanged, lug, wafer, or butt-welded check valves; API 6D or ISO 14313 may apply to qualifying pipeline-valve service |
| 交货时间和文件 | 在书面报价中确认 |
所列材质为常见选项,并非全部可选范围。请提供所需牌号及使用工况,以便评估适用性、制造可行性和供应情况。
目录信息支持查询。批准的技术文件定义了最终供货。