结构特点
a guided closure element lifting from the seat under forward differential pressure

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
Lift Type Check Valve
导向关闭件在正向压差作用下离开阀座,实现开启。 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
a guided closure element lifting from the seat under forward differential pressure
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 installation position and guide clearance
steam, condensate, clean liquids, small process lines, and high-pressure utility branches
minimum differential pressure, installation position, guide clearance, media cleanliness, seat load, and pressure drop
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 no external actuator unless the approved design includes assisted closure or position indication |
| 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。