規格
| Nominal valve connection size | 1/2" to 12" |
|---|---|
| Pressure class / nominal rating designation | Class 150 to Class 600, PN 16 to PN64, JIS 10K to 40K |
| end connection | Flanged, Welded |
| Working temperature (source-defined) | -17 to +230 C |
| Valve body material | WCB, WC6, WCC, CF8, CF8M, CF3, CF3M, Alloy Steel |
| Trim material | SS304, SS316, SS316L |
| gland packing | V-PTFE, PTFE, Graphite |
| Control mode / signal | Throttling Control, On-Off Control |
| valve action | Air to Close, Air to Open |
| Actuator type / construction | Multi-Spring Diaphragm Type |
應用與選型指引
Select this execution where tight shutoff matters more than actuating force - the single seat takes the full pressure drop but seals tighter than a balanced double seat. Pick the body casting against the medium, the trim against erosion and temperature inside the -17 to +230 C window, and choose air-to-close for fail-open or air-to-open for fail-closed safety logic.
常見問題
Why pick a single seat over a balanced double seat trim?
One seat gives a single, verifiable sealing surface - the benchmark page trims it in SS304, SS316 or SS316L - so shutoff is tighter, at the cost of higher unbalanced force that the multi-spring diaphragm actuator must carry.
What ratings and temperatures does the benchmark execution cover?
The benchmark page declares Class 150 to Class 600, PN16 to PN64 and JIS 10K to 40K pressure classes over 1/2" to 12" sizes, with a -17 C to +230 C working temperature on WCB through CF3M and alloy steel bodies.
How is the fail-safe action selected?
The benchmark page lists valve action as air to close or air to open and control mode as throttling or on-off, so the actuator is set to move the stainless-trim plug to the safe state on air failure while the gland packing (V-PTFE, PTFE or graphite) holds the stem seal.
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。