規格
| balanced seal ring materials | 1.4310 + D31 |
|---|---|
| spiral wound gasket materials | 304/316 + soft graphite |
| stuffing materials | PTFE, soft graphite |
| stud materials | Grade 35, 304 |
| nut materials | Grade 45, 304 |
| Nominal valve connection size | DN40 to DN400 (40,50,65,80,100,125,150,200,250,300,350,400) |
| Valve body material | WCB, WC6, CF8, CF8M |
| lower sleeve materials | 304,316/cobalt-chromium hardfacing alloy, 316/cobalt-chromium hardfacing alloy |
| valve plug materials | 304,316/cobalt-chromium hardfacing alloy, 316/cobalt-chromium hardfacing alloy |
| upper sleeve materials | 304,316/cobalt-chromium hardfacing alloy |
| valve rod materials | 304,316, 316 |
| gasket materials | Q235B, 304 |
| Bonnet material | WCB, WC6, CF8, CF8M |
| packing spring materials | 304,316 |
| packing spacer materials | 304 |
| packing gland materials | 304 |
| Pressure class / nominal rating designation | PN16 to PN100, Class 150 to Class 600 |
| End connection types | Flanged (FF, RF, MF, RTJ), Welded (SW, BW) |
| bonnet types | Plain bonnet, Extension bonnet Type 1, Extension bonnet Type 2 (cryogenic), Bellows type |
| Flow Characteristics | Equal percentage, Linear |
| Seat leakage class | Metal seat ANSI B16.104 Class II (≤0.5% of rated capacity); soft seat ANSI B16.104 Class VI (≤0.00001% of rated capacity) |
應用與選型指引
Select this execution where cage guidance is wanted to stabilise the plug under high pressure drop and to carry noise or cavitation trim options, with pneumatic actuation. Pick the body casting against the medium, choose 304 or 316/cobalt-chromium hardfacing alloy trim against erosion, and match the DN40 to DN400 size band and Kv table to the loop capacity.
常見問題
What does cage-guided trim do on this valve?
The cage guides the plug across its travel and can carry drilled trim stages, so the plug stays centred under high pressure drop and noise or cavitation duty can be trimmed into the sleeve. The benchmark page lists lower sleeve, plug and upper sleeve in 304/316 with cobalt-chromium hardfacing alloy facing inside a WCB/WC6/CF8/CF8M boundary.
Which sealing components close the benchmark execution?
The benchmark page lists a 1.4310+D31 balanced seal ring, a 304/316+soft graphite metal spiral wound gasket, PTFE or soft graphite stuffing with 304 packing spring, spacer and gland, and grade 35/304 studs with grade 45/304 nuts.
What sizes does the benchmark execution cover?
The benchmark technical table runs nominal diameter DN40 to DN400 with equal percentage and linear rated Kv values per size, so loop capacity can be read directly from the Kv table.
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。