規格
| Nominal valve connection size | DN50-DN300 |
|---|---|
| Pressure Rating | PN10/16 |
| Design standards | BS5153, BS 4504 PN6/PN10/PN16 |
| Valve body material | Ductile Iron |
| seal material | Brass +NBR |
| bonnet material | Ductile Iron |
| medium | Water and neutral liquid |
| Service temperature range | 0 to 80C |
應用與選型指引
Choose this execution when the project standard references BS 5153 and BS 4504 flange drillings at PN6-PN16; for DIN-referenced water schemes the DIN EN ductile-iron execution is the closer match. Both are water and neutral-liquid valves limited to 0-80 C on the benchmark page - do not extend them to hot-oil or steam duty.
常見問題
Which standard does this execution satisfy?
The specification block cites BS 5153 and BS 4504 PN6/PN10/PN16, which is what separates this execution from the DIN EN ductile-iron swing check variant - the valve principle is identical, the dimensional and flange reference differs.
What is the sealing arrangement?
Brass seal ring with NBR, in a ductile-iron body and bonnet, rated PN10/16 across DN50-DN300 for water and neutral liquids at 0 to 80 C.
Can it be used outside water service?
The page states water and neutral liquid as the medium. Chemical, hydrocarbon or steam duty needs a different material execution - the stainless steel or cast-steel check-valve executions are the applicable families, and medium compatibility should be confirmed at quotation.
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。