規格
| Nominal valve connection size | DN25-DN600 |
|---|---|
| Pressure class / nominal rating designation | PN10/PN16 |
| Design standards | DIN2501 PN10/PN16, DIN2532, DIN2533 |
| Valve body material | Cast Iron, Ductile Iron |
| Seal material | NBR, EPDM, VITON, PTFE+Ductile Iron, WCB, CF8, CF8M |
| Stem material | SS416, SS304, SS316 |
| medium | Water, Oil, Gas |
| Working temperature (source-defined) | -20-300℃ |
應用與選型指引
Select this execution for abrasive, scaling or corrosion-prone water, oil and gas lines where the medium should only touch rubber - slurries, effluent and sludge service included - in DN25 to DN600 PN10/16 pipework. Pick the sleeve (NBR for oil resistance, EPDM for water and waste water, VITON for hot aggressive media, PTFE-bonded where chemical inertness dominates) against the medium, then confirm the -20 to 300 C window at the chosen sleeve and the DIN 2501/2532/2533 flange drilling.
常見問題
Why does a pinch valve suit abrasive and scaling media?
The rubber flow channel is the only part the medium touches. Its smooth wall resists scaling - each open and close cycle crushes accumulated scale off - and the full-bore opening leaves no cavities or turbulence when open, so abrasive slurry does not erode seats the way it would in a gate or butterfly valve.
How is the sleeve material chosen for this execution?
The source execution lists NBR, EPDM, VITON, PTFE plus ductile iron, WCB, CF8 and CF8M options. EPDM covers water and waste water, NBR covers oils, VITON extends to hotter aggressive media, and the PTFE-bonded sleeve serves where chemical inertness dominates - each with its own temperature ceiling inside the -20 to 300 C overall window.
What information is needed to quote a flanged pinch valve?
Nominal size within DN25 to DN600, PN10 or PN16 class, medium confirmation (water, oil or gas), the sleeve material against that medium and its temperature within -20 to 300 C, stem material (SS416, SS304 or SS316), and the DIN 2501/2532/2533 flange drilling.
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。