无码综合高清少妇_亚洲chinese猛男自慰gv_美女被到爽视频免费下载_大香蕉国产74在线视频_97在线视频免费公开观看_亚洲国产精品激情片_制服丝袜中文字幕在线观看_99久久免费精品国产男女性_欧美另类人妻制服丝袜_亚洲欧美经典一级片

GB wedge gate valve

Column:Technical support Time:2023-11-03
shared:
Model: Z41H
Nominal diameter: DN15 ~ 1000mm
Nominal pressure: PN1.6 ~ 4.0MPa


Product description:

GB wedge gate valve for nominal pressure PN1.6 ~ 16MPa, operating temperature -29 ~ 350 ℃ in petroleum, chemical, pharmaceutical, fertilizer, power industry and other conditions of the pipeline, cut off or connect the pipeline medium. GB bellows gate valve structure is reasonable, reliable sealing, excellent performance, handsome in appearance; sealing surface surfacing Co-based hard alloy, wear resistance, corrosion resistance, good friction performance, long service life; GB Bellows valve stem conditioning and Surface nitriding, corrosion resistance and good anti-friction performance; double seal, more reliable performance; stem lift position instructions more intuitive.