規格
| Nominal valve connection size | 1/4" to 1" (Female/Female BSP and BSPT), 3/8" to 1" (Female/Female NPT), 1/4" to 1/2" (Male/Female BSPP) |
|---|---|
| Service temperature range | -20C to 230C |
| Valve operator / operating mechanism | Bar, hand operated |
| Pressure Rating | 6000 PSI |
| Valve body material | ASTM A-351 GR. CF3M |
| bonnet material | ASTM A-351 GR. CF3M |
| Stem material | SS316 |
| packing material | TEFLON |
應用與選型指引
Pick by end connection and Cv first: the page lists Cv 0.4 (1/4-3/8 in) to 2.5 (1 in) and end styles from female BSP/BSPT/NPT to male/female BSPP. SS304 executions are the economical corrosion pick; SS316/CF3M wins in chloride duty. The -20 to 230 C window covers instrument-air through hot-oil indication duty.
常見問題
What sizes and connections does this needle valve execution cover?
1/4" to 1" female/female BSP and BSPT, 3/8" to 1" female/female NPT and 1/4" to 1/2" male/female BSPP per the specification block, bar or hand operated, rated 6000 psi with a media-pressure table up to 408 bar.
What are the wetted materials?
Body and bonnet ASTM A-351 GR. CF3M, stem and gland nut SS316, PTFE packing, with SS304 handle and set screw - a full stainless execution aimed at corrosive and instrument service between -20 and 230 C.
How do I size the valve?
Use the page Cv table: 0.4 for 1/4"-3/8", 0.6 for 1/2", 1.6 for 3/4" and 2.5 for 1", against the required flow at up to 408 bar media pressure. Needle valves throttle precisely rather than passing full line flow, so Cv and end connection - not line size alone - drive selection.
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。