規格
| Nominal valve connection size | DN40 to DN1200 (1.5" to 48") |
|---|---|
| Pressure class / nominal rating designation | PN10/PN16 |
| Design standards | EN 593, DIN 2501 PN6/10/16, DIN 3202 K1 |
| Valve body material | CI, DI, WCB, CF3, CF3M, CF8, CF8M |
| Seal material | CF8 + PTFE |
| Stem material | Stainless Steel, nickel-copper alloy K500 |
| valve design | API 609, MSS SP-67 |
| Face-to-face dimensional standard | API 609, MSS SP-67, DIN 3202, BS EN 558-1 |
| Inspection and pressure-test standards | API 598 |
| flange drilling | ANSI B16.1 Class 125, BS 4504 PN10/PN16, DIN 2501 PN10/PN16 |
| top flange | ISO 5211 |
應用與選型指引
Select this execution for corrosive media - chemical and petrochemical transfer, water treatment, shipbuilding and general industry - where an elastomer-lined body would swell or age but the duty stays within PN10/PN16. Size inside DN40 to DN1200, match the flange drilling (ANSI B16.1 Class 125, BS 4504 or DIN 2501 PN10/PN16) to the mating pipe, and use the ISO 5211 top flange for lever, gear or actuated operation.
常見問題
When is a PTFE seal worth it on a wafer butterfly valve?
PTFE resists nearly the whole acids, alkalis and solvents spectrum and does not take a compression set the way elastomers do, so it suits corrosive duty and infrequent cycling. The benchmark page declares the seal as CF8 + PTFE with stainless steel or nickel-copper alloy K500 stems, and design per API 609 / MSS SP-67 with ISO 5211 top flange.
Which flange drilling does the wafer body match?
The benchmark page declares ANSI B16.1 Class 125, BS 4504 PN10/PN16 and DIN 2501 PN10/PN16 drillings, with face-to-face per API 609, MSS SP-67, DIN 3202 and BS EN 558-1. Match the drilling to the mating flange standard rather than assuming cross-compatibility across the DN40 to DN1200 range.
What information is needed to quote a PTFE lined wafer butterfly valve?
Nominal size within DN40 to DN1200, the PN10 or PN16 rating, the mating flange drilling standard, medium and temperature (PTFE limits apply), and the operation mode against the ISO 5211 top flange. Those points fix the body and seal build for 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。