規格
| Nominal valve connection size | DN15 to DN100 (1/4" to 4") |
|---|---|
| Pressure class / nominal rating designation | PN10/16, Class 125 |
| Design standards | DIN 2501 PN6/10/16, BS 5155, API 598, EN 12266 |
| Valve body material | CF8M, SS304, SS316 |
| Seal material | Stainless Steel |
| Stem material | Stainless Steel 304 |
| medium | Water, Waste Water, Oil |
| Service temperature range | -29 to 120 C |
| pipe size | DN15-DN200 |
| product size range | 1/2"-3" |
| applicable standards | ANSI BS DIN |
| body material grade | 304&316&304L&316L |
| Working pressure (source-defined) | 200PSI/PN16 |
| spec sheet working pressure | 800 PSI WOG |
| temperature range spec | -20 ~ 232'C |
| Suitable Medium | Water, Oil, Air & Some Corrosive Liquid |
| thread options | NPT, BSPT, BSP, DIN259/2999 |
| dimensions 1 2 in | A 15, H 42, L 65 |
| dimensions 3 4 in | A 20, H 51, L 80 |
| dimensions 1 in | A 25, H 60, L 90 |
| dimensions 1 1 4 in | A 32, H 67, L 105 |
| dimensions 1 1 2 in | A 40, H 75, L 120 |
| dimensions 2 in | A 50, H 81, L 140 |
| dimensions 2 1 2 in | A 65, H 93, L 180 |
| dimensions 3 in | A 80, H 104, L 200 |
應用與選型指引
Select this execution where small-bore stainless lines need a non-return point and hot work or flanging is not practical - utility water, waste water and oil circuits at DN15 to DN100. Fix the pressure envelope at PN10/16 or Class 125, confirm the -29 to 120 C window against the medium, and match the screwed connection to the piping thread standard.
常見問題
Why specify CF8M for a threaded swing check?
CF8M (cast 316-class) gives the pressure boundary chloride and general corrosion resistance that cast iron or carbon steel bodies cannot, at the small DN15 to DN100 bores where threaded installation is cheapest. The benchmark page pairs the CF8M body with a stainless seal and 304 stem, so the wetted trim stays stainless end to end.
What are the pressure and temperature limits?
The benchmark page declares PN10/16 and Class 125 ratings with a service window of -29 to 120 C, noting the exact pairing depends on the body and sealing surface materials. Stay inside both limits, and treat the temperature ceiling as the governing constraint near Class 125.
What information is needed to quote a CF8M screw swing check valve?
Nominal size within DN15 to DN100 (1/4 to 4 inch), the thread standard of the mating line, medium and temperature against the -29 to 120 C window, and the rating (PN10/16 or Class 125). Those points fix the casting and trim 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。