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升降式逆止閥
升降式逆止閥在正向流動下將活塞或球體直接抬離閥座，倒流時靠重力落座，行程短且確定，適合緊湊的高壓管線。產品範圍涵蓋法蘭系列 DN15 至 DN300，Class 150 至 Class 900（PN16 至 PN100），閥體涵蓋碳鋼、低合金鋼與奧氏體不鏽鋼結構自 WCB 至 CF3M，閥蓋為 A105 至 F316L 的鍛造等級，閥盤與閥座環等級涵蓋 F6a、F304L、F316L、F11 與 F22。設計依 BS1868、ASME B16.34 與 API 6D，面距依 ASME B16.10，測試依 API 598 / API 6D。選型取決於壓力等級、閥座副硬度與安裝方向。
屬於 逆止閥 系列
最後更新： 2026-11
系列規格
| Nominal valve connection size | DN15 to DN300 |
|---|---|
| Pressure class / nominal rating designation | Class 150 to Class 900 (PN16 to PN100) |
| Pressure class / nominal rating designation | Class150 to Class900, PN16 to PN100 |
| Valve body material | WCB, LCB, WC1, WC6, WC9, C5, CF8, CF8M, CF3, CF3M |
| Disc Materials | F6a, F304L, F316L, F11, F22, F316 |
| End connection types | Flanged |
| Design standards | BS1868, ASME B16.34, API 6D |
| Inspection and pressure-test standards | API 598, API 6D |
| Face-to-face dimensional standard | ASME B16.10 |
| Bonnet material | A105, F11, F22, F5, F9, F304, F316, F321, F304L, F316L |
| Materials (component scope as published) | WCB, LCB, WC1, WC6, WC9, C5, CF8, CF8M, CF3, CF3M |
| wla design standard | API 602 |
| wla body materials | ASTM A182 F316L |
| wla nominal size | 1 inch (DN25) |
| wla operating pressure | Class 300 LB (PN50) |
| wla end connection | RF |
| wla face to face | ASME B16.10 |
| wla test standard | API 598 |
| wla size range | 1/2 - 20 inch (DN15 - DN500) |
| wla pressure range | Class 150 - 2500 LB (PN16 - PN420) |
| wlb design standard | DIN 3356 |
| wlb body materials | GS-C25 (ASTM A216 WCB) |
| wlb nominal size | 6 inch (DN150) |
| wlb operating pressure | PN16 (150 LB) |
| wlb end connection | RF flange ends |
| wlb face to face | DIN 3202 |
| wlb test standard | EN 12266.1 |
| wlb disc materials | GS-C25 |
| wlb seal materials | NBR, EPDM (sealing ring) |
| wlb shaft materials | Stainless steel |
| wlb spring materials | Stainless steel |
| kla design standard | DIN 3356 |
| kla body materials | EN 1.0619 |
| kla nominal size | DN32 (1-1/4 inch) |
| kla operating pressure | PN40 (Class 300 LB) |
| kla end connection | RF flanged |
| kla medium | Water, oil, gas |
| kla temperature range | -29 deg C to 595 deg C |
| kla material options | GS-C25, EN 1.0619, ASTM A216 WCB, A352 LCB, A351 CF8, CF8M, CF3, CF3M |
| kla end connections series | RF flange, groove |
| kla face to face | DIN 3202 |
| kla flange standards | DIN 2543-2545 (flanged ends) |
| kla test standard | DIN 3230 |
| klb body materials | GS-C25 |
| klb nominal size | DN50 (2 inch) |
| klb operating pressure | PN16 (Class 150 LB) |
| klb end connection | RF flanged |
| klb design standard | DIN 3356 |
| klb size range series | DN50-DN600 (2-24 inch) |
| klb pressure range series | PN10-PN100 (Class 150-600 LB) |
| klb face to face | DIN 3202 |
| klc body materials | ASTM A351 CF8 |
| klc nominal size | DN32 (1-1/4 inch) |
| klc operating pressure | PN16 (Class 150 LB) |
| klc end connection | BSPT thread |
| klc temperature range | -29 deg C to 150 deg C |
| klc size range series | 1/2-4 inch (DN15-DN100) |
| klc pressure rating series | 200 PSI, PN16 |
| klc material options | ASTM A351 CF8, CF8M, CF3, CF3M |
| klc thread standards | BSPT, BSP (BS21), NPT (ASME B1.20.1) |
| klc test standard | API 598 |
| ngc orientation basis | Vertical installation is acceptable only where the proposed figure and its instructions permit the intended pipe orientation and flow direction; upward and downward flow must not be assumed equivalent |
| ngc spring design basis | Not every lift check valve design uses a spring: some designs rely on gravity and fluid forces, others add spring closing force |
| ngc cracking pressure basis | Cracking differential pressure concerns initial opening; pressure class concerns the applicable pressure-temperature rating; operating pressure loss is separate again |
| seat ring materials | F6a, F304L, F316L, F11, F22, F316 |
| gasket | SS316+Graphite |
| ring materials | A105, F6a |
| end connection | Flanged |
| flange end dimension | ASME B16.5 |
| buttweld dimension | ASME B16.25 |
訂購與文件
文件
請在詢問時一併說明您需要的文件組合——此結構的常見項目（材質證明、按所列檢驗標準的測試報告、尺寸圖）將於報價時確認並隨附供應。
報價
可直接報價的詢問應說明：公稱口徑與壓力額定、閥體與閥座材質偏好、端部連接、操作方式，以及含溫度的使用介質。本頁的典型值為基準參考範圍；具有約束力的數值於報價時確認。
樣品與供應
供應條件、訂購數量與交期按訂單議定——請在詢問時說明目的地國家與所需時程。
儲存與運輸
閥門儲存時應保護閥座與密封件免受紫外線、臭氧與變形影響，安裝前保留端面保護蓋；彈性體或 PTFE 閥座結構應避免長期戶外存放——閥座材料在陽光直射與冰凍條件下老化最快。
常見問題
升降式逆止閥的報價詢問應包含哪些內容？
執行標準與壓力等級、公稱口徑、閥體與閥座材質、介質及溫度、目的地——缺失的資訊會在報價過程中確認。
升降式逆止閥提供哪些口徑與壓力等級？
本頁面尚未公布該閥門經驗證的口徑與壓力等級範圍——適用於您工況的口徑與壓力等級會在報價過程中提出並確認。請在詢問時附上工況條件，選型結果會在報價中說明。
升降式逆止閥提供哪些閥體材質？
本頁面尚未公布該閥門經驗證的閥體材質範圍——適用於您工況的閥體材質會在報價過程中提出並確認。請在詢問時附上工況條件，選型結果會在報價中說明。
請求升降式逆止閥報價
在此提交需求——可直接報價的詢問應說明適用標準與等級、口徑、材質、介質、溫度與目的地.
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準備提出較大量或非標準需求？ 升降式逆止閥詢價指南 說明應包含的內容、標準範圍與客製選項，以及應附上的文件。