規格
| valve body materials | WCB, SS304, SS316 |
|---|---|
| valve core materials | SS304, SS316 + PTFE |
| valve seat materials | SS304, SS316, PTFE |
| Packing Materials | Teflon (PTFE) |
| Pressure class / nominal rating designation | PN1.6, PN4.0, PN6.4 |
| inherent adjustable ratio | 50:1 |
| working temperature range | Heat dissipation -40 to 450 C; normal -20 to 200 C |
| signal range | 20 to 100, 40 to 200, 20 to 60, 60 to 100, 80 to 240 kPa |
| rated travel mm | 16, 25, 40, 60 |
| membrane effective area | 280, 400, 600, 1000 |
| air supply pressure | 0.14 to 0.4 Mpa |
| Nominal valve connection size | DN15 to DN300 |
| media | Water, Steam, Oil |
| Flow Characteristics | Linear, Equal percentage, Quick open |
| allowable leakage | Metal seal grade IV (0.01% rated capacity), leakage standard GB/T 4213 |
| ambient temperature | -30 to 70°C |
應用與選型指引
Select this execution where a sleeve (cage) trim is wanted to control noise, cavitation and trim wear on modulating duty, and a pneumatic diaphragm actuator suits the plant air supply. Confirm the PN1.6/4.0/6.4 rating, pick the -40 to 450 C heat-dissipation or -20 to 200 C normal temperature construction, and match the kPa signal range to the positioner loop.
常見問題
What materials does the benchmark sleeve type execution use?
The benchmark page lists valve body in WCB, SS304 or SS316, valve core in SS304 or SS316 with PTFE, valve seat in SS304, SS316 or PTFE, and teflon packing - a stainless-leaning trim inside a carbon or stainless body.
What pressure and temperature ranges apply?
The benchmark page declares a nominal pressure of PN1.6, 4.0 and 6.4 MPa, a 50:1 inherent adjustable ratio, and a working range of -40 to 450 C for the heat dissipation construction or -20 to 200 C for normal temperature service.
Which pneumatic signal ranges are supported?
The benchmark page lists 20 to 100, 40 to 200, 20 to 60, 60 to 100 and 80 to 240 kPa signal ranges, so the valve can be matched to common positioner and I/P output standards without custom calibration.
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。