閘閥 · 明桿閘閥（rising stem）
DIN 鑄鐵明桿閘閥
DIN 鑄鐵明桿閘閥是依 DIN 3352 F4/F5 的外螺紋明桿楔形閘閥：閥門開啟時閥桿明顯上升，位置一目了然，基準頁上鑄鐵閥體涵蓋 DN40 至 DN600，PN16 至 PN420。面距依 DIN 3202 / ISO 5752，法蘭依 DIN 2501，端接為法蘭與對焊，操作選項自手輪至氣動。
屬於 明桿閘閥（rising stem） 系列
最後更新： 2026-11
規格
| Valve body material | Cast Iron |
|---|---|
| Bonnet material | Cast Iron |
| Disc Materials | Cast Iron |
| Stem material | Stainless Steel, Brass |
| Seat material | Stainless Steel, Brass |
| Nominal valve connection size | DN40 to DN600 |
| Pressure class / nominal rating designation | PN16 to PN420 |
| Design standards | DIN3352 F4, DIN3352 F5 |
| Face-to-face dimensional standard | DIN 3202, ISO5752 |
| Flange standards | DIN2501 |
| Inspection and pressure-test standards | DIN3220 |
| End connection types | Flanged, Buttweld |
| Operation / closure mode | Handwheel, Gear Operated, Electric Actuated, Pneumatic Actuated |
應用與選型指引
Specify this execution where stem-rise headroom exists and position indication matters - plant water, HVAC and general industrial service on DIN-standard lines. Cast iron bounds the medium and temperature: it suits water and neutral fluids, not thermal shock or aggressive media; the stainless and brass stem and seal-ring materials on the benchmark page define the wetted trim. PN420 appears as the top of the source-declared pressure span, but confirm the per-size rating at quotation because cast iron bodies are normally pressure-limited at large bore.
常見問題
Rising stem vs non-rising stem gate valve - how do I choose?
A rising stem moves upward with the wedge: the open position can be read from the stem, and the stem threads live outside the line medium where they stay lubricated and inspectable. It needs headroom equal to the travel. A non-rising stem keeps a constant height for buried or space-limited chambers but hides the position. Choose rising stem wherever the height is available and indication or stem maintenance matters.
What do DIN 3352 F4 and F5 mean?
They are the two face-to-face series of DIN 3352 for gate valves: F4 is the shorter series and F5 the longer one. The benchmark page lists both, so the execution can be matched to existing DIN 3202 / ISO 5752 face-to-face layouts - order the series that matches the installed gap, because the two are not physically interchangeable.
What information is needed to quote a DIN rising stem cast iron gate valve?
Nominal diameter (DN40 to DN600 on the benchmark page), pressure rating (the source page declares a PN16 to PN420 span), the F4 or F5 face-to-face series, flange drilling (DIN 2501), the medium with temperature, and the operation (handwheel, gear, electric or pneumatic). Confirm the exact per-size pressure limit at quotation for the larger bores.
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。