1. <strong id="seay1"></strong>
  2. <tfoot id="seay1"><dfn id="seay1"></dfn></tfoot>

  3. 久久综合网欧美色妞网,国产强伦姧在线观看无码,免费女人18毛片a毛片视频,成人嫩草研究院久久久精品,偷窥 自由 网络 视频,丰满人妻一区二区三区,久久久中文字幕av无码,久久精品国产亚洲成人AV未满十八站

    The standard of full welded ball valve A

    Dateline:2014-11-30    Hits:

    Size: full size & standard size DN15-DN1400 1/2 "American Standard ~ 56"

    Pressure rating: PN 16 ~ 420, ANSI Class 150 ~2500

    Working temperature: -29 degrees C (-20 degrees F) ~ +200 degrees C (392 degrees F)

    To adapt to the media: heating pipeline, LNG / liquefied petroleum gas, petrochemical,steel mills, oil / gas etc.

    Mode of operation: the handle, gear (vertical / horizontal), electric

    Standard features:

    Integrated structure: Welding & flange end

    The sphere mirror polishing material F304

    Butterfly pad spring to ensure no leakage and reduce the high temperature and high pressure valve operating torsion

    According to the international standard valve stem anti blow out

    Stem bearing material: automatic lubricating ability of alloy +PTEF coating, without additional lubricant

    A floating or fixed ball valve

    Feature selection: (on request)

    Self rescue seat

    Vertical device and stem extension

    Special port and path

    Antistatic device

    The stem can emergency treatment of oil and fat

    Valve lubricant and sealant of emergency equipment

    Seal metal to metal seating

    Double block and bleed

    Double piston effect of valve seat

    Fire safety design with graphite gasket

    Use a plastic polymer sealing valve seat

    Safety valve body cavity

    Ball and stem of electroless nickel plating

    Material:

    Body: carbon steel ST37, A106-B, STPG 370, A105, ASTM A516-60, A216-WCB or equivalent. Stainless steel 304 or 316 (to choose)

    Sphere: stainless steel 304 or 316 level seat: metal valve seat with polymer sealing ring, PTFE, RTFE, Viton, Nylon, Peek etc..


    手機網站

    主站蜘蛛池模板: 色婷婷亚洲十月十月色天 | 亚洲国产精品日韩在线| 男女免费观看在线爽爽爽视频| 亚洲精品第一区二区三区| 日本黄色一区二区三区四区| 亚洲AV无码乱码精品国产福利| 四房色播开心网| 亚洲日韩欧美综合| 中文字无码日韩欧毛| 精品国产一级中文免费不卡| 视频在线a无码国产| 粉嫩国产一区二区三区在线| 国精产品一区一区三区有限公司 | 野花日本大全免费观看中文7| 国产精品欧美亚洲韩国日本久久| 精品人妻系列无码人妻免费视频| 国产性爱精品久久久| 欧美激情一区二区| 亚洲av激情一区二区三区| 亚洲国产成人精品女久久| 成全视频观看高清在线观看| 风流老熟女一区二区三区| 亚洲欧洲一区二区免费| 精品久久久久中文字幕日本| 嫖妓丰满肥熟妇在线精品| 亚洲国产成人va在线观看天堂| 亚洲中文AⅤ中文字幕在线| 蜜桃无码一区二区三区| 无码av在线播放| 极品尤物一区二区三区小说| 欧美牲交欧美精品网站| 亚洲中文字幕无码一区无广告| 日韩午夜一区二区福利视频| 娇妻粗大高潮白浆| 熟女精品国产一区二区三区| 国产精品色情国产三级在| 国产精品无码免费播放| 国产精品亚洲MNBAV网站| 国产无码午夜不卡| 日本久久久久精品免费| 亚洲国产精品久久人人爱|