規格
| Nominal valve connection size | DN100 to DN2000 |
|---|---|
| Pressure class / nominal rating designation | PN10/PN16/PN24 |
| Design standards | DIN 3202, DIN 2501 PN10/PN16 |
| Valve body material | WCB |
| Seal material | 304 + Flexible Graphite |
| Stem material | Stainless Steel |
| medium | Water, Steam, Oils, Nitrose, Acetic Acid |
| Service temperature range | -29 to 425 C (WCB body); -40 to 650 C (stainless steel) |
| disc material | CF8 |
| stem material grade | F6A |
| Seat material | WCB+cobalt-chromium hardfacing alloy |
| sealing ring material | CF8+cobalt-chromium hardfacing alloy |
| Pressure class / nominal rating designation | PN16 |
| Nominal valve connection size | DN700 |
| end connection | BW |
| test and inspection | API 598/ISO 5208 |
| Actuation method | Electric actuated |
| asme class | CL150 |
| Working temperature (source-defined) | -29℃~425℃ |
應用與選型指引
Select this execution for large-bore hot lines - metallurgical, power, petrochemical and municipal distribution - where media up to 425 C in the WCB body (water, steam, oils, nitrose, acetic acid) rule out resilient seats and the three-eccentric wear-free closure keeps seat life long at high cycle counts. Size inside DN100 to DN2000 against PN10 to PN24, and confirm the -29 to 425 C WCB window (or the -40 to 650 C stainless route) against the line design temperature.
常見問題
What does the triple eccentric sealing structure change at large bore?
The three offsets move the seat cone so the disc touches the seal only at the final closing angle - the benchmark page notes seat and disc see almost no wear. In a DN100 to DN2000 body, where seat rub at every stroke would destroy a conventional seat, that geometry is what makes metal-to-metal (304 + flexible graphite) sealing practical at PN10 to PN24.
How hot can this execution run?
The benchmark page declares -29 to 425 C for the WCB body and -40 to 650 C for the stainless steel execution, with the seal ring in stainless steel carrying both low and high temperature sealing. Choose the body route against the line design temperature: WCB to 425 C, stainless beyond it.
What information is needed to quote a WCB triple eccentric butterfly valve?
Nominal size within DN100 to DN2000, the PN10, PN16 or PN24 rating, medium and design temperature against the body-route windows, and the mating flange standard (DIN 3202, DIN 2501 PN10/PN16 per the benchmark page). Those points fix the body material route and seat build.
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。