螺紋式截止閥J11W概述：
螺紋截止閥的啟閉件是塞形的閥瓣，密封面呈平面或錐面，閥瓣沿流體的中心線作直線運(yùn)動(dòng)。閥桿的運(yùn)動(dòng)形式，有升降桿式（閥桿升降，手輪不升降），也有升降旋轉(zhuǎn)桿式（手輪與閥桿一起旋轉(zhuǎn)升降，螺母設(shè)在閥體上）。截止閥只適用于全開和全關(guān)，不允許作調(diào)節(jié)和節(jié)流。
螺紋式截止閥J11W主要性能規(guī)范：
型號(hào) | 公稱壓力 | 試驗(yàn)壓力PS（Mpa） | 工作壓力PN（Mpa） | 工作溫度
（℃） | 適用介質(zhì) |
殼體 | 密封 |
J11W-16
J11W-16K | 1.6 | 2.5 | 1.76 | 1.6 | ≤100 | 油類
Oil |
J11W-16P | 硝酸類腐蝕性介質(zhì) |
J11W-16R | ≤350 | 醋酸類腐蝕性介質(zhì) |
J11W-16Ni | 堿液、鹽水、海水等 |
螺紋式截止閥J11W主要外形尺寸和連接尺寸：
公稱通徑
DN（mm） | 管螺紋 | 尺寸（mm） |
L | D1 | S | H | H1 | D0 |
15 | 1/2 | 90 | 14 | 32 | 109 | 117 | 65 |
20 | 3/4 | 100 | 16 | 36 | 109 | 117 | 65 |
25 | 1 | 120 | 18 | 46 | 132 | 142 | 80 |
32 | 1/4 | 140 | 20 | 55 | 156 | 168 | 100 |
40 | 1/2 | 170 | 22 | 65 | 167 | 168 | 100 |
50 | 2 | 200 | 24 | 80 | 182 | 200 | 120 |
65 | 2/2 | 260 | 26 | 95 | 200 | 223 | 120 |
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