精品少妇一区二区三区免费观看,日韩女优制服丝袜电影,www.成人.com,欧美激情影院,鲁大师精品99久久久,青青青草网站免费视频在线观看,精品电影在线,国产精品中文字幕欧美,激情国产在线,日韩欧美在线一区二区三区

電動截止閥結構特點、用途及注意事項：“乾QY儀”系列可以安裝在管道的任何位置上，介質從下往上流。產品設計制造按國家標準GB12235,結構合理,密封可靠,性能優良,造型美觀。合金鋼截止閥適用于耐高溫的蒸汽、油品管道上，具有耐高溫特點。不銹鋼截止閥適用于各類腐性介質的管道上，有良好的防腐性的足夠的強度。其特點如下：①閥瓣、閥座密封面用硬質合堆焊而成,耐磨、耐高溫、耐腐蝕、抗擦傷性好、使用壽命長。②閥桿材料為滲氮鋼，滲氮后的閥桿表面硬度高、耐磨、抗擦傷，抗腐蝕。③由于溫度、壓力等原因，閥門口徑DN50以下的閥體、閥蓋為模鍛件、DN65以上的閥體、閥蓋為鑄鋼件。④閥體材料品種齊全,填料、墊片可根據實際工況或用戶要求合理選配,能適用與各種壓力、溫度及介質工況。⑤安裝閥門時注意介質的流向，嚴格按閥門流向箭頭指示的方向安裝。⑥電動截止閥盡量垂直安裝，閥桿向上。J941H-10C DN32/J941H-10C DN40/J941H-10C DN50/J941H-10C DN65/J941H-10C DN80/J941H-10C DN100/J941H-10C DN125/J941H-10C DN150/J941H-10C DN200/J941H-10C DN250/J941H-10C DN300/J941H-10C DN350/J941H-10C DN400/J941H-10C DN450/J941H-10C DN500/J941H-10C DN600/J941H-10C DN700/J941H-10C DN800/J941H-10C DN900/J941H-10C DN1000/J941H-16C DN32/J941H-16C DN40/J941H-16C DN50/J941H-16C DN65/J941H-16C DN80/J941H-16C DN100/J941H-16C DN125/J941H-16C DN150/J941H-16C DN200/J941H-16C DN250/J941H-16C DN300/J941H-16C DN350/J941H-16C DN400/J941H-16C DN450/J941H-16C DN500/J941H-16C DN600/J941H-16C DN700/J941H-16C DN800/J941H-16C DN900/J941H-16C DN1000/J941H-25C DN32/J941H-25C DN40/J941H-25C DN50/J941H-25C DN65/J941H-25C DN80/J941H-25C DN100/J941H-25C DN125/J941H-25C DN150/J941H-25C DN200/J941H-25C DN250/J941H-25C DN300/J941H-25C DN350/J941H-25C DN400/J941H-25C DN450/J941H-25C DN500/J941H-25C DN600/J941H-25C DN700/J941H-25C DN800/J941H-25C DN900/J941H-25C DN1000/J941H-40C DN32/J941H-40C DN40/J941H-40C DN50/J941H-40C DN65/J941H-40C DN80/J941H-40C DN100/J941H-40C DN125/J941H-40C DN150/J941H-40C DN200/J941H-40C DN250/J941H-40C DN300/J941H-40C DN350/J941H-40C DN400/J941H-40C DN450/J941H-40C DN500/J941H-40C DN600/J941H-40C DN700/J941H-40C DN800/J941H-40C DN900/J941H-40C DN1000/J941H-64C DN32/J941H-64C DN40/J941H-64C DN50/J941H-64C DN65/J941H-64C DN80/J941H-64C DN100/J941H-64C DN125/J941H-64C DN150/J941H-64C DN200/J941H-64C DN250/J941H-64C DN300/J941H-64C DN350/J941H-64C DN400/J941H-64C DN450/J941H-64C DN500/J941H-64C DN600/J941H-64C DN700/J941H-64C DN800/J941H-64C DN900/J941H-64C DN1000/J941H-100C DN32/J941H-100C DN40/J941H-100C DN50/J941H-100C DN65/J941H-100C DN80/J941H-100C DN100/J941H-100C DN125/J941H-100C DN150/J941H-100C DN200/J941H-100C DN250/J941H-100C DN300/J941H-100C DN350/J941H-100C DN400/J941H-100C DN450/J941H-100C DN500/J941H-100C DN600/J941H-100C DN700/J941H-100C DN800/J941H-100C DN900/J941H-100C DN1000